Mercedes ecu problems. You’ll need to replace the unit to solve this issue.

Mercedes ecu problems. Feb 20, 2017 · What does it mean when you have a Mercedes Engine Misfire Under normal operation, the fuel and air mixture entering the combustion chamber of your Mercedes-Benz engine ignites. Jan 9, 2024 · I have recently been having problems with ESP/ABS, Runflat indicator etc on my Mercedes W204. When attempting a luggage blind bypass i grounded the Wrong pin, on the Wrong ecu, and ended up with a fried ecu, a car that only moved in first or reverse, and had all the brake /esp lights on:confused: However I got one today off fleabay, and fitted it Customer: I’m having ECU problems on my 2005 e500. Bit has 5 engine sensors not working I will list them -Oil level unavailable Apr 15, 2016 · As the cold season gets underway more and more problems show there ugly heads! Many Fault codes are genuine faults with components but some that won't clear or erase are to do with the ECU! If you have an ECU with a Flashing fault code (A code that appears current but flashes up on and off) I can help! Common Mercedes Vito ECU faults are. 2009 Mercedes GL320 Bluetec. While literally hundreds of issues can trigger this warning light, when the ECU detects problems with its electronic components, circuits, or sensors, it will activate this warning. Keep your car in top shape with a visit to MBClinic. Mercedes ECU Repair Electronic Control Module Repair Module Experts provides a full line of Mercedes ECU Repair. The second group could be Security and Relays. ECU/MAFS Problems Breakdowns, Symptoms, Cure, Cost For a discount on the cost of your MAFS repair see below for details. So, in one of my last threads I had problem of sluggish gas, high diesel Consumption of 15 liters despite of new MAF sensors, done injectors and TONS of black smoke. Aug 11, 2021 · W164 CAN Communication problem between ISM, EZS, TCM, SEATBELT SRS Thread Rating: 1 2 3 4 5 Pages (3):1 2 3 Jul 26, 2021 · 1997 e320 crank no start no injectors pulse fuel pressure at rail spark, compression ( car starts and runs when I put fuel at the throttle body) checked all fuses, all relays transponder is in place 12v at injectors with key at 2 position disconnected battery for 24 hrs cranckshaft sensor good In this video, you will learn 4 symptoms of a bad or failing engine control module. This electronic module is a built-in computer which your vehicle depends on for managing a variety of its systems and functions. Once installed in your vehicle, no other coding will be required. Dec 17, 2023 · Uncover professional insights into Mercedes ECM problems. The ECU , or engine control unit, is a major component of your 2010 Mercedes C-Class 's onboard computer. Professional Mercedes ECU Repair Services Do You Have a Faulty Mercedes ECU? A malfunctioning ECU can lead to engine performance issues, warning lights on the dashboard, and even complete vehicle breakdowns. Trying to sort out the brake light switch problem with help from a freind the ECU and fuse box were unclipped. Oct 18, 2023 · Water ingress ECU | Bodywork On October 6th 2020 member srednim wrote "I also made a aluminium cover and fitted over ECU to stop any water causing more problems, water tested the cover, car now on road with no faults. com If you’re experiencing Mercedes ECU problems, don’t worry, we can help. P0607 is not a true Mercedes code. I’ve replaced the Crank PS, Cam positive sensor, car began to run again Mechanic's Assistant: Do you hear clicking when you try to start the vehicle? Do any lights come on? Customer: car is now running fine. 8L models. Dec 5, 2021 · How to check a bad ECU on your MercedesHere at Ecuboot, we offer German Automotive Diagnostic Trainings such as: Mercedes, BMW, Volkswagen and Audi. May 4, 2015 · Mercedes-Benz C-Class C63 AMG: Common Problems The Mercedes-Benz C63 AMG (w204) was highly anticipated and praised when it was launched in late 2007 as a 2008 model. This is a 2001, 220170 S430 Mercedes Benz. Mar 28, 2017 · 1st time MB owner here. Nov 9, 2021 · Hi Bro/Sis s , Any one can share if you've encountered similar problem? I bought the car (2011 E250 7G W212) when it was 7 years and been driving it with no issues for the past 3 years. In this article, we discuss the five main reasons why ECUs fail and provide tips to help prevent these issues from Feb 20, 2023 · The Engine Control Unit (ECU) can be seen as the brains behind all vehicle operations. But, with almost anything, the C63 wasn't quite perfect. Call us on 0208 853 5000. If you’re a Mercedes owner struggling with these problems, you need a reliable solution to get back on the road with confidence. Says ECU needs replacement. The ECM itself will cost about $450 to $900. Car ran great and my problem of jerky hesitation while in reverse was and is still cured. Jul 5, 2022 · When you think of a ten-year-old Mercedes do you think about reliability? How about the M272 engine and M273 engine? Learn about their common problems. Dec 8, 2023 · A common question is, "can Mercedes ECU be repaired?" This blog will explore this query, outlining the signs of ECU failure, possible causes, and the best course for encountering ECU-related issues. The engine and Apr 1, 2012 · W140 ECU PROBLEMS AND NO START! Jump to Latest 28K views 16 replies 8 participants last post by m00n_777 May 28, 2013 Goodchild Discussion starter Mar 21, 2024 · In extreme cases, the vehicle can become impossible to drive. I guess my S430 is getting old, so I am in need of assistance to diagnose the new problems I am facing. Jan 9, 2023 · Today, Mike will show you a problem coming from Mercedes-Benz E250. What it's telling you is basically the same though, the module raising the fault, so ECU here, is not receiving a message it expects from the other module. The Early Days of Mercedes Powertrain Errors Mercedes-Benz has a long tradition of pioneering technology in the automotive Jun 4, 2025 · The ECU is the Engine Control Unit of your vehicle. Nov 25, 2008 · Out of curiosity- What are some symptoms or related problems which would happen due to a ECU/ECM going bad/failing? I heard from my mechanic that one See full list on mbofsmithtown. All modules are rebuilt Apr 5, 2015 · Does anyone have a guess if the new ECU will solve this problem? Does anyone have any experience with Mercedes of Henderson or the Freightliner dealer in Las Vegas? I did price the ECU elsewhere and the price seems in line. ECU Testing and repair specialise in testing & repair of Engine Control Units, BSI / BCM Airbag ABS and convenience modules for all modules and makes of vehicle. One day I was driving and suddenly the engine was only driven by 2 cylinders. Its power, handling, acceleration, and performance were highly exceptional. Changed the sparks plugs, swapped coils and the problem remains on cylinder 1. On the road it stopped and the Turbo won’t kick in. All prior 6-cylinder engines from Mercedes were straight sixes. Oct 16, 2020 · 2007 S-550 USA. When the ECU fails, it can lead to a host of issues, including poor engine performance and even crank no start situations. pcm engine control unit primary control module, ecu replacement, ecu repair. We have e Oct 28, 2024 · This article explores the intricacies of Mercedes ECU repair and replacement, delves into the world of Mercedes tuners, and highlights the premier shop for tuning services. It serves as the main computer governing various engine performance and drivability functions. In this guide, we cover the Sep 1, 2015 · Hi, I have the following problem with my W204, 2008, 220 CDi C Class and I'd be grateful for some help and advice with it. You’ll need to replace the unit to solve this issue. Non Aug 17, 2021 · Are ECU failures common on 15-20 year old MB's? My 2006 E350 Wagon (m272 motor) with 141K miles is starting to get some funky CEL codes that my Indy has thoroughly diagnosed and says the pattern of faults is consistent with ECU failure. Early models were particularly prone to these issues, but many were addressed in later versions. Common engine problems include the balance shaft, intake manifold, thermostat, and oil leaks. Our professional team will either test, repair, or clone your unit. Jun 11, 2025 · Mail in automotive electronic repair services The ECU Pro offers an affordable mail-in repair service for automotive electronics. Jan 30, 2022 · Get yourself an MB specific diagnostic kit (£70-200 depending what you go for) and read the ECU looking for any fault codes. For readability, please post in this forum in the following Nov 3, 2008 · I could imagine that MB could reflash it with the original software if the hardware is still working properly. Y Tech specializes in Mercedes ECU repair, offering unparalleled expertise and precision in every repair. They have said it is a common fault on Jul 21, 2023 · The Electronic Control Unit (ECU) is a vital component in modern vehicles, responsible for managing various systems and ensuring their optimal performance. The second most common problem is related to the vehicle's wiring (5 problems). We Understand Your Frustration At Autotronics UK, we know Jul 21, 2010 · Hi Guys, Im helping my father out with his C200 1996 but making it more difficult im at the other side of the world at the moment ! I have ran through all the common problems as listed on this website - he has already changed the coil packs, checked the wiring loom and its connectors into the Oct 15, 2005 · In an effort to improve the W202 forum, we're starting a "common problems and their solutions" thread for W202's. The ECU constantly monitors various engine parameters, such as crankshaft position, ignition timing, and fuel delivery, to ensure optimal engine performance. And the A150 doesn't even have performance on its side. 00 from mercedes-Benz, Special discounts available to readers of this site on garanteed repairs. While the light was on i noticed some Nov 23, 2023 · The Mercedes A Class W169 equipped with the CVT (Continuously Variable Transmission) 722. Jul 29, 2022 · 1my Sprinter W906 from 2006 was just running fine. Role of ECM in Modern Mercedes remaps, we look at your options, see if you can you remap a Mercedes ECU? So click here to find out all you need to know about remapping your Mercedes and comparing remapping companies, see problems and the benefits. Although in a C-class it was the OM646 engine, which you may well have in your Vito. The number one most common problem is related to the vehicle's electrical system (18 problems). When your Mercedes faces ECU problems, choosing the right repair service is crucial. Instead of replacing the Aug 28, 2017 · To solve the “Click no start” problem we need to divide into groups of problems. Common Failure symptoms:Limp ho Mar 30, 2024 · The ECU can also be the cause of Mercedes camshaft position sensor problems. ECU sent Aug 31, 2024 · Experiencing a misfire in engine on your Mercedes? Learn the symptoms, causes like spark plug or injector faults, and how to fix engine misfiring step by step. In this guide, I discuss Jun 23, 2024 · Struggling with CAN Bus Troubleshooting in your Mercedes? Discover causes, signs, and step-by-step fixes to restore proper module communication quickly. 0 and SIM271KE 2. ECU REPAIRS specialises in automotive electro-software. If your transmission is stuck in limp mode, DON’T PANIC. The car shakes when driving with a rough ideal as well. These simple do-it-yourself instructions take less than 5 minutes. Our expert technicians can help prevent oil leaks and safeguard your engine computer. Starting Mar 30, 2025 · Mercedes Sprinter 311 CDI ECU Burn Out And EDC Light On Hi, I have a Mercedes Sprinter 51 Reg, problems occurred when my ECU Had burn out when the engine had cut out, and the EDC Light Had Stayed On, i had replaced the ECU Kit,with Ignition barrel and transponder the van had started perfect but asoon as i drove it and the engine had cut out and Jan 7, 2016 · The engine control module (ECM), also known as the engine control unit (ECU), is a critical component in modern vehicles. 0L? Is it good or bad? Read about Mercedes M111 Engine 2. The ECU (electronic control unit) adjusts the transmission for shifting smoothness and for maximizing fuel efficiency. Went to start the car, turned key fully and nothing. Apr 7, 2025 · If your ECU starts malfunctioning, you have two options: repair or replace. With a glowplug light it would turn over and start. 0L design and features, its the most common problems and relaibility. I have a 2005 C180 Recently the engine diagnostic light came on and the garage I took it to have told me there is an engine oil leak which has pushed oil through the loom and flooded the ECU. 4 days ago · Here is the repair guide for common issues with the Mercedes-Benz 271 engine ECU (SIM271DE 2. Mercedes C250 ECU Diagnose Test and exchange fixIn this video I will show you step by step how to test The ECU in this Mercedes C250 and I will also show you Mar 22, 2025 · Explore Mercedes Benz wiring harness problems, including causes, owner feedback, and recall insights for informed ownership. Stay informed with our professional insights! Jul 27, 2025 · If you’ve ever faced strange warning lights, erratic performance, or costly repairs, your car’s ECU might be to blame. Think of it as the vehicle’s brain. After numerous intermittent problems and false codes, I shipped my ECU off to M&B Specialist - where they ultimately had to replace the Motherboard in the ECU. Understanding the role of the ECM and recognizing the symptoms of a bad engine control module is crucial for maintaining optimal vehicle performance. This article will discuss some of the most common What is the M111 Engine 2. checked the mass airflow meter and it was dead so replaced it,boost was back and no warning light. The buying guide. Expert Mercedes ECU Repair: Why Choose Y Tech's Remanufactured ECMs Mercedes ECU Repair: The Y Tech Excellence When your Mercedes faces ECU problems, choosing the right repair service is crucial. Disconnecting the battery suggests there is a fault code that's getting cleared. A more remote possibility is a fluctuating fuel pressure due to faulty fuel rail regulator, a partially blocked in line filter [ the one beside the pump] or tank outlet strainer or Jan 14, 2016 · I have mercedes w 211 car in my workshop after diagnosis i found that engine control unit is defected it always say that coolant temperature sensor has an open circuit. Nov 29, 2024 · A trusted repair shop can inspect your vehicle’s engine, wiring harness, and ECU, catching any problems early and helping to maintain your Mercedes-Benz's performance and longevity. 223 Feb 19, 2010 · I replaced the standard copper spark plugs with Bosch Platinum +2, while doing so I also cleaned the MAF and throttle body. Failed Emissions Tests: A faulty ECU might prevent your Mercedes from meeting emissions standards. fan coming on. Mercedes uses mostly Bosch & Siemens Engine Control Modules. Anyhow I have Erratic Instument Lights, Electric Radiator fan Jul 23, 2014 · Before installing a new ECU, you should check carefully the rest of the engine wiring. We plugged it in and had a fault with mass air flow meter which wouldn't reset. Try this if your car has been shifting sluggishly recently. The problem started with when car would not start when key was turned. Review with faults, problems and what to check on a used E-Class W212. Safety Hazards: Problems like stalling or poor throttle response can put you at risk while driving. If you drive aggressively, the ECU "learns" this driving style and adjusts the transmission This Mercedes A Class CVT (Continuously Variable Transmission) ECU is an extremely common problem for the 722. It’s also commonly referred to as the ECM (Engine Control Module) or even a PCM (Powertrain Control Module), although a PCM has additional functions as well. They have said it is a common fault on May 2, 2014 · Faulty Mercedes VDO ECU? Faults with this unit commonly caused by shortage in wiring harness + Coil Packs melting. There are many symptoms that can be associated with a faulty ECU. Thanks. This solution works for many other models suffering from this known issue. In my time on this forum, I’ve seen a lot of murmurings about the somewhat-common issue of oil residue in the engine harness, leading to absurdly expensive repairs. They did a 5mls road test, but was. In this article, we’ll explore the most common ECU issues in Mercedes-Benz vehicles and provide practical advice on how to address them. After diagnostics using Xentry, it turned out that the problem was in a faulty ESP control unit. Table 1 shows the 13 most common electrical system problems. This is what happend Few days ago the "check engine" light has appeared and in 3-4 i brought it to the nearest MB service shop. I called a mechanic friend of mine and after running Diagnostics it showed these 3 main errors (pic attached). Nov 8, 2010 · As the cold season gets underway more and more problems show there ugly heads! Many Fault codes are genuine faults with components but some that won't clear or erase are to do with the ECU! If you have an ECU with a Flashing fault code (A code that appears current but flashes up on and off) I can help! Common Mercedes Vito ECU faults are. Jun 4, 2023 · I had something similar that was temperamental but getting worse. Apr 5, 2012 · A damaged ECU can cause problems when shifting gears in an automatic transmission, or cause sudden jerking or stopping that's similar to transmission problems. 9 gearbox) is a common failure to cause gear selection problems, test and rebuild of your 7G-Tronic ECU Jul 9, 2014 · Hi, I have a 2005 mercedes e220 cdi auto with starting problems. The first group could be the Battery and Charging System. Is your Mercedes-Benz showing signs of ECU problems? Learn how to recognize the symptoms and address the issue with these expert tips. " We have recently spent over £4k correcting electrical issues with our Mercedes E-class E350 CDI S212. No sparks Aug 25, 2014 · Hello friends, last post was in 2009. Initial Testing To find out which group you have Jan 19, 2025 · Explore common Mercedes M112 engine problems, their symptoms, and solutions to maintain performance and reliability. no starter turning etc and warnings coming up, abs batt, etc. When the fuel/air mixture doesn’t get ignited, one or more cylinders don’t provide any power to turn the engine, which gets detected by the Engine Control Unit (ECU) and triggers an engine misfire code. Most likely an external (to the ECU) fault has caused the ECU failure and it would likely happen again with the new ECU sooner or later. It's used to regulate many systems and subsystems in your 2010 Mercedes C-Class 's engine, drive train and other major components. Long story shortI accidentally sparked the ECU body with positive battery terminal and now my remote key don't work to unlock/lock doors. and have looked at many answers over and over again but no joy. RELATED: 5 Symptoms of a Bad Engine Control Unit (ECU) Engine Control Module (ECM) Replacement Cost The average engine control module replacement cost is between $500 and $1000 on most car models. The car now cranks, runs and drives fine - but I am concerned about what I experience on start-up. 8 faces recurrent ECU (Electronic Control Unit) problems, leading to a range of symptoms and fault codes. What are the common signs of ECU problems in a Mercedes? Jun 11, 2025 · Electrical problems - the electronic components of a car can be hampered by an inefficient ECU, causing battery issues, inaccurate gauges, and warning lights to be triggered. The battery in Feb 18, 2017 · Hi everyone, recently i had an issue. It receives information from various If problems persist, revisiting the original backup or consulting a professional can prevent minor issues from escalating. If you are after something more interesting than the usual options, maybe look for a 1. This guide has everything you should know. Jan 7, 2024 · ECU Testing are a UK & global supplier of automotive ECU, ABS pump modules, transmission controllers, throttle bodies, instrument clusters and electric power steering columns. May 4, 2015 · This article applies to the Mercedes-Benz E-Class and E-Class AMG (2002-2009). just bought a 2014 C300 with a few problems - looking for suggestions where to start. Non Apr 27, 2025 · Finally I got my engine working like it should work, FINALLY. Apr 27, 2018 · hi I've had a mercedes technician out to my b200 and he thinks there's a problem with the ecu but hes not certain and want to know what problems people have had with there to see if the problems sound similar???? Nov 15, 2024 · To successfully reset the ECU of your Mercedes computer, try these additional tips: disconnect and reconnect the battery, use a data-saving battery connected to the electrical system, or seek professional help like an ECU scanner. That leaves $50 to $100 in labor expenses. Let's go! Jan 10, 2012 · Ok, so i have had many problems with this van in the last few months. From engine upgrades and performance tuning to electronic repairs and troubleshooting, we provide expert insights and advice to help you get the most Feb 16, 2017 · I expect your glow plug module uses the LIN bus to communicate with the ECU, not CAN. Mercedes 7 speed transmission ECU (722. This troubleshooting guide will help you narrow down the transmission problem and teach you how to perform some repairs. I have W202 erratic idling and loss of power issue. Focused in the testing, repair and modification of engine control units (ECU’s) and application software in light and heavy vehicles. Apr 25, 2023 · All data and information about the Mercedes-Benz E-Class W212. Here are some ways to tell if yours is damaged or faulty. Sometimes a failing ECU may trigger this light erroneously. The mileage on the LCD screen comes on as normal, but it is the only visual I get; warning symbols like the May 3, 2020 · Get the car scanned by a Mercedes SDS. When I insert the Is your Mercedes A Class experiencing issues with its CVT (Continuously Variable Transmission) ECU? If you're encountering problems like the 'Transmission Visit Workshop' warning message, loss of power, or stuck gears, you're not alone. We specialize in German vehicles such as BMW, Mercedes Mar 25, 2022 · FixMyCar discusses some of the issues drivers have experienced with the Mercedes-Benz A-Class, including common symptoms and recent recall information. Whether or not you are looking for a Remanufactured Mercedes ECU tomorrow or looking to send yours into be rebuilt we have your solution. Apr 6, 2012 · Hi I have a 2012 e class E350 W212 the engine ecu wiring harness, has got water ingress into the plug, causing problems, I need to replace 6 connectors on the engine wiring loom, does any one know where to buy these, I am now looking from where water has got into the loom, the ECU and harness Read expert Mercedes-Benz E-Class w211 and AMG transmission problem guides and repair how-tos with photos and videos to help you maintain your Mercedes-Benz. 0). If the ECU is not working properly, it can cause the signal from the sensor to be interrupted. Let’s explore why Mercedes ECU fails, the signs to watch out for, and the best routes for Mercedes ECU repair to get your vehicle back in peak condition. Things like engine breather heating element (very important in Singapore ) or some other short circuit could cause it. Apr 21, 2025 · Mercedes Benz ECU tuning is the process of modifying the engine control unit (ECU) software to optimize vehicle performance, enhance fuel efficiency, or Jul 31, 2020 · Hello All, I have been working on a misfire issue on 2007 E350 4Matic with 141K miles on it. The Process of Mercedes ECU Repair Mercedes ECU repair involves diagnosing and fixing specific issues with the unit to restore its functionality. So after months of diagnosing the problems we had in my car, I was Aug 12, 2020 · Hi I have had my sprinter for maybe a week and decided I wanted to remap the vehicle using my Alientech hardware (not clone) It’s a 313cdi and essentially I used the wrong protocol to ID (take a snap shot of ecu). No tools are required to perform this procedure and make your Mercedes-Benz shift like new. The current problem started when it broke down en route from the UK to Rome If you're dealing with a bad Mercedes computer, don't worry! This video will show you how to easily fix it with a Mercedes ecu replacement and key programming. Mar 16, 2024 · The engine control unit (ECU) plays a critical role in diagnosing engine misfires in your Mercedes-Benz C-Class. The largest MERCEDES BENZ ECU REPAIR company. Learn repair solutions and when to consider a replacement for your vehicle's ECU. We are automotive control module remanufacturing specialists, offering our bespoke service on a wide range of commonly failing Mercedes ECUs. Always make sure that any vehicle you consider buying can be properly turned on before you buy. Our team has over 30 years experience in automotive electronic repairs. Took for Sep 11, 2022 · ECU One of the major problems you might face with a Mercedes A-Class is a problem with the ECU, where it turns itself off the moment it comes on – or it simply becomes unresponsive. Our company has the latest technology equipment and a seasoned personnel, thus we can resolve any electronical problem that your vehicle might have. Mercedes Sprinter 313 CDI problems are usually caused by a faulty engine management ECU. Mar 25, 2024 · Are you in need of a Mercedes Benz electronic ignition switch (EIS) repair? If so, you've come to the right place. Rebuild service with a lifetime warranty. Before posting a new thread in the forum with your question, please check here for a solution as well as doing a search. com, we provide expert remote diagnostics, programming, and software installation services to efficiently resolve these problems. Unfortunately, the M272 doesn’t have a great reputation for reliability and is known to have some costly issues. After about 1,100 miles I would get code P0301 (misfire cylinder 1) almost every Sep 20, 2024 · Hi everyone, I have a problem with a 2008 Vito W639 111 CDI Diesel Auto, belonging to my ex. Trust us with your vehicle and it's ECU. This will make your car fun to drive again; it’s like Apr 21, 2024 · Hey W212ers, Longtime lurker on here as a prospective, “hopefully someday,” owner of an M278 E550. (125kbps/500kbps) This is used for all safety components and the Looking for the latest news and tips on auto tuning and electronic repair? Our blog has got you covered. This was originally a manual, but was at some point converted to a camper, with high roof and auto box. Jul 12, 2024 · M272 engine problems & How to Spot Them The Mercedes m272 has been known to suffer from a few common issues, including balance shaft gear wear, oil leaks, and intake manifold problems. underneath and inside parts, it looks showroom clean. Oct 30, 2020 · The Mercedes-Benz M272 is a V6 engine tasked with replacing the M112, Mercedes first V6 engine. Common fault affecting the Mercedes A Class (W169) with the CVT gearbox, the root cause is failure of the gearbox ECU. That’s why it’s important to know the symptoms of a bad Engine Control Unit (ECU), so you can head off any problems. To have your unit repaired, simply remove the part and mail it to us. I left the car to a car repair and they tried to change spark plugs and ignition coils but without success. Full Recondition of Mercedes PLD ECU for Bus, Coach, or Truck. How To Diagnose A Faulty ECU With No Communication ECU TESTING 95. If a Mercedes ECU is damaged, it can cause a number of problems within a car. The cables were rubbing the fuel filter hose. 8 petrol Honda Civic. Mercedes-Benz owners may face a problem when the key no longer turns in the ignition. A company with a vast experience in the area of ECU repairs. It’s rare for this part to fail completely, but it can happen. Apr 21, 2025 · Mercedes Benz ECU repair involves diagnosing and fixing issues within your car’s Engine Control Unit (ECU) to ensure optimal performance. The Mercedes SIM271DE/KE is an Engine Control Unit (ECU) used in various 4-cylinder Mercedes-Benz models, including C-Class, E-Class, SLK-Class, and other 1. Sep 28, 2024 · Discover the top causes and symptoms of Mercedes-Benz ECU failure. May 2, 2019 · I just had my AMG GL63 M157 engine failure (locked) on Tuesday, and awaiting what happened :frown 14 days ago I took my car for the MB dealership service in North NJ to fix the vacuum door lock, and inspect the transmission that was a bit jerky on low speed. C180, 1995 model, recently replaced the ECU and HT coils, and spark This procedure will reset the adaptive shifting points in your Mercedes-Benz automatic Transmission Control Unit (TCU). Bad Mistake as the ECU then shorted on the live terminal of the battery jump start connection, doh. Getting codes P0301 P0351 and either P2004 or P2006. The protocol I used was a 316 cdi and they have a different ecu, normally this Jan 9, 2013 · Hello everyone! I have got the famous ECU failure problem on my Mercedes C200 -96. Car is still drive-able, but Jul 1, 2022 · The ECU Pro offers professional Mercedes-Benz ECU & DME testing, repairs, and replacement services. This power and performance had a downside. May 16, 2018 · You can just unsolder the old one, desolder new one and solder old one to new ecu assuming the eeprom is ok in the old one. don't ask!). This video Apr 6, 2025 · When the ECU begins to fail, the consequences can range from mild drivability issues to total engine shutdown. If you experience jerking or stopping, you regularly maintain your transmission properly, and the vehicle has adequate levels of transmission fluid, then a faulty ECU should be suspect. 70% less than dealer's RRP. Regular maintenance and keeping your ECU software current, either through legitimate updates or tuning sessions, will help maintain peak performance and keep your Mercedes running like a dream for miles to come. For details of each of the problem category, use the links in the A-Class Automatic Gearbox ECU This is a common problem for all Mercedes A-Class vehicles built after 1998 with FTC automatic transmission, this will cause the “F” light to appear on the dash and the gears will feel as though they are “banging” in to place. Nevertheless, like any other electronic device, ECUs can encounter problems that affect the overall functioning of the vehicle. I have read alot about this Apr 4, 2021 · I'm after the ECU wiring diagram for Mercedes CLA. If there is a code resetting via diags is always preferable to disconnecting the battery and risking a surge destroying an ECU somewhere. With no glowplug light, it wasn't interested in turning over. Helped my mechanic with Audi with the same problem, in our case the eeprom was ok so I just desolder from old ecu and solder back on new ecu. Mar 18, 2025 · Explore key facts, owner feedback, and recall information on Mercedes Benz computer problems to stay informed and prepared. Apr 23, 2014 · By this ALL Electronic Control Units (ECU/ECM) in the car is connected, and might as a result give us some headache when trying to localize a problem… CAN bus networks is transmitting data according to priority, and CAN C (engine/chassis) has 1'st priority and highest speed. It turned out to be an ECU software problem in the end. Jul 8, 2014 · Hello guys, i have a question related to my W212 E220 Blue Efficiency (OM651) year 2009 which i have recently bought. (pls. So we reconnected the 3 cables, and ran DAS May 12, 2024 · FAQs on Mercedes ECU Repair in Miami in 2025 : Top Tips and Expert Advice 1. 8 transmission. Fearing for the wallet of owners Mercedes A150 - ECU problems with Mercedes A150 I'm buying - Avant Sorry to be negative, but most of us on here would advise that buying a 12-year-old Mercedes will be at best a gamble, at worst a money-pit. Words of wisdom will be appreciated as well as encouragement if possible. Mercedes ECU Repair Mercedes is know for having VIN locked ECUs. Say goodbye to Mercedes security Aug 23, 2006 · I don't mean that doing this repair could damage the ECU; what I mean is that leaving the bad engine harness in place could damage the ECU so even if you perform this repair, there are other areas of the harness which still have problems so the best bet is to replace the entire harness. Everything started about a week ago, when I tried to start the car, it crancked but never started, after many Mercedes Benz C Class owners have reported 46 electrical system related problems since 1996. But which one should you choose? And if you're driving a Mercedes, does it require Dec 10, 2024 · The most prevalent sign of ECU problems is an illuminated Check Engine light on your dashboard. Our dedicated focus on Mercedes… Mar 29, 2024 · This historical overview will explore the evolution of Mercedes powertrain errors, leading to a detailed discussion on the P0607 code: a Control Module Performance issue also known as ECU (Engine Control Unit) Malfunction. This issue is often caused by a defective key, a bad shifter module, a failed Electronic Ignition Switch (EIS), the EIS-EZS, or a bad steering lock module (ESL). There may be some risk to this and you now have an oddball ecu, but at least the defective immo wont strand the car. The third group could be the Starter and its Solenoid. The engine shut off on the highway, car was towed home. These can include engine misfires, loss of power, poor fuel economy, difficulty starting the car and other drivability issues. Watching this video will help you diagnose to see if it's time to replace your engine control module. All our Mercedes-Benz DME repair services are mail-in repairs and 100% plug-and-play. Nov 1, 2018 · Other problems worth investigating would be the inlet camshaft adjustment solenoid and the OVP [over voltage protection relay] which supplies the engine ECU- its a straight DIY swap/fix if it happened to be that. What is an ECU and Its Role in Mercedes Vehicles? An ECU, or Engine Control Unit, is the computer that controls various aspects of a vehicle's engine operation. Feb 26, 2015 · Mercedes-Benz Transmission Problems This article discusses the most common Mercedes-Benz transmission problems and how you can fix some of them. Learn about the causes, symptoms, and expert solutions to tackle start-up and misfire issues. May 4, 2024 · You have to send in the ECU, and they remove a chip, reprogram it and put back. Why this is May 7, 2014 · Mercedes ECU Repairs Have you had any of the following issues with your Mercedes ECU modules? No Communication, Misfire, Spiked via Jump start and Limp Mode? If the answer is yes, we may be able to help! The above are common faults found with ECM units, and here at ECU Repairs, we currently offer a full Testing + Repair service for all models of Mercedes PCM units. So this car had some water damage But I cant find any water lines. Internal component failure of the engine ECU will prevent the vehicle from starting and illuminate the engine management warning light. After inspecting there were 3 cables torn (on that big cable that goes into the ecu). Stay informed and keep your Mercedes running smoothly Feb 17, 2019 · HI All I'm new to the forum and hoping I could get some advice. Just last week the car suddenly stalled while on the road and died off,step on acceleration no power, steering Need help determining if ECU failure is actual problem or not. Mar 17, 2023 · The Electronic Control Unit (ECU) is the brain of a modern vehicle, responsible for managing and controlling various aspects of the engine's performance. Mercedes PLD ECU Repair from Remanufactured Parts. Our step-by-step guide will help you diagnose your ECU with symptoms of bad/faulty units, testing recommendations & an affordable ECU repair service. In this blog post, we will explore some of the most common ECU problems encountered by vehicle owners Dec 17, 2023 · Uncover professional insights into Mercedes ECM problems. Wiring is ok and sensor is ok and the problem is in ECU. ECU on Mercedes usually do not fail so easily. 8K subscribers Subscribe Mar 30, 2009 · Mass Air Flow/ECU problems and the alternative the purchasing a new unit costing £1000. At AutoExplain. For Mercedes-Benz owners, understanding the most common ECU problems and knowing how to address them is essential to keeping the vehicle in peak condition. Oct 9, 2017 · Hi guys, have a strange problem on a 2008 sprinter, vehicle came in with engine warning lamp and limp mode. Apr 6, 2025 · However, like any electronic component, the ECU can develop faults over time, particularly in older models or under harsh operating conditions. iywxc ncco eps tuxkj yldwsy dgbjd qnthl yfwsme jqh vlei