C63 misfire. When it starts to run rough & misfire I noticed the rear O2 sensors MV drop down to around 20MV. The code P0300 stands for random misfire. Persistent cylinder 3 misfires can stem from faulty ignition coils, spark plugs, or fuel injectors. Including SL63 AMG, CL63 AMG, S63 AMG, E63 AMG, CLS63 AMG, C63 AMG, CLL63 AMG, ML63 AMG, R63 AMG. Car runs fine at idle, absolutely smooth, fine when revving and fine while driving most of the time. Becker Map Pilot Compatibility Compatible Mercedes models : 2013 2014 Mercedes C-Class Sedan & Coupe C250 C300 C350 C400 C63 AMG Only 2015 Mercedes C-Class C250 Coupe / C350 Coupe / C63 Coupe 2013 2014 2015 Mercedes GLK-Class GLK250 GLK350 2013 2014 2015 Mercedes SLK250 SLK350 SLK55 AMG 2014 2015 Mercedes CLA250 CLA45 AMG The car runs fine. Right after that the car felt like it was running really rough. There is no knocking or banging. G'day gang. I've done an oil change (Mobil 1), swapped coil packs over bank to bank. it can also be felt Just wondering if these misfires could be anything to do with filling up with the new E10 fuel because I couldn’t get any super unleaded the other week due to shortages, has anyone else had problems with that fuel Thank you all for tuning in to Super Mario Diagnostics! Today we are diagnosing a light idle misfire and check engine light on a tuned 2012 Mercedes Benz C63 C63/GTx 177/178 Check Engine Light on with Misfire DTC's. 0L v8 biturbo What happened Car was misfiring once while in garage while low on fuel. Was refueled, left alone for a day and turned on without a misfire. Fired the car up and went for a drive, had a miss and was running shit. COMMON M156 FAULT! PART 1 SPR Autos Mercedes Benz Service & Repairs 61. C63 M156 #6 Misfire. I wonder why??? Michael S. Hi all, Recently bought a w204 c63 with 34k on the clock. It includes step-by-step remedies, diagnostic data, and fault codes for combustion misfiring in multiple cylinders. This can lead to rough idling, reduced performance, and potential misfires. It was introduced to compete with the BMW M3. Thoughts? If you get a misfire (mine was intermittent, others have experienced permanent misfires) on a particular cylinder it is likely to be the coil. 2 liter engine produced 518 horsepower and 465 So Friday I got food poisoning which is still with me and as I reversed into a parking space at the doctors today, the car starts shuddering and I thought would stall. But when warm runs fine expect idles at 800-850rpms (nornal 600/700ish) and surges very little at stop. The codes: P0300 - Random Misfire Detected (Pending, Current, Permanent) P0305 - Cylinder 5 Misfire Detected (Pending) P0306 - When it starts to run rough & misfire I noticed the rear O2 sensors MV drop down to around 20MV. After about 1,100 miles I would get code P0301 (misfire cylinder 1) almost every Jul 5, 2014 · Similar threads Cls55 AMG misfire at 3,000 revs + gunning May 7, 2025 AMG Lounge Replies 7 Views 1K Aug 29, 2025 Apr 29, 2022 · MC-10151939-9999 PDF A documentation that provides detailed instructions and troubleshooting for engine issues in certain Mercedes-Benz models, specifically addressing misfires and check engine light problems. over the past couple of weeks of ownership i have noticed a bit of hesitation in idle when the car is in drive and you let your foot of the brake without any acceleration so the car is just moving under its own power. 4. 3K subscribers Subscribed 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. (see post history). An engine misfire is a common issue in Mercedes Benz vehicles that are lacking in routine maintenance, especially the replacement of wear items like spark This is a 2020 Mercedes-Benz C63 V8 that came in with a misfire on Cylinder 2. We've… Learn the common causes of Mercedes engine misfire, expert fixes, and real case studies. Its worth further investigation to see if its a plug/injector. If I turn eng off and back on again, issue goes. Feb 28, 2023 · That hard misfire on the first video doesn't sound great. Hi all I have an issue with my W205 C63S, only in the mornings on cold start the car misfires but once warmed up the misfire seems to smooth out. Engine Running Roughly Topic number If oil temp is below 84⁰ on cold start it will misfire shortly. Took it for a decent drive in case it was a bit of stale fuel. Getting codes that I have misfires on cylinders 7 and 8. Also car used to judder slightly when accelerating over 50-60. Finding carbon deposits in your engine can point to a number of problems that range from poor quality fuel to an incorrect M156 V8 Platform - Technical discussion relating to models sharing the M156 V8 6. Vehicle started to misfire. So the engine has intermittent misfire on cylinder 1 and 6. Learn the most common issues of the M156 engine. However, like any performance car, it is not without its issues. On a cold start it’s misfiring, with flashing CEL. The result is an engine that misfires, stumbles, idles roughand more! Although not necessarily true in Now My Problem, please help if you can:- The car is a stock 2017 C63 AMG with roughly 20k miles. Misfiring engine. The document details the procedure for checking for leaks, inspecting Dec 16, 2025 · Hello DN, p1200 Exhaust Camshaft Bank 1 position relative to Crankshaft Implausible P0755 The Position Sensor for Intake Camshaft Bank 1 has a malfunction P0629 Multiple cylinder misfires detected And misfire codes for Cylinders 1-4 all bank 1 cylinders misfiring. MERCEDES W204 C63, SIMPLE MISFIRE TURNS INTO SERIOUS PROBLEM. Available in cabriolet, coupe, saloon, […] A faulty MAF sensor can cause your engine to misfire, ultimately causing poor fuel economy, performance, and potentially more unnecessary damage to your engine. AMG-enhanced bodywork adds to the vehicle’s dynamic appeal. I picked up a 2020 C63 with 26k miles and almost immediately got a check engine light. Hi, our 2010 c63 has developed a misfire on one bank. Discover common Mercedes C63 engine problems, their causes, solutions, and insights from owner feedback and recall campaigns. No deal. Cylinder Basically over the last few months I have had 2 x fuel injectors fail on my C63 (5 year old with 29K on the clock running a Stage 2 Weistec Supercharger for the last 11K miles) The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. 6K views 00:21 Engine Leak Diagnosis: Fixing Cylinder Head Issues Fast 2 days ago · 3. There is nothing more satisfying than figuring out a problem car! After sorting out a mysterious misfire/limp mode on this Mercedes-Benz C63 AMG we ditched t C63 AMG (W204) - VERY random cold start misfire - Stumped - Hi All, I have a cold start misfire that happens to throw a code, maybe once a month and have been chasing various possibilities. Its 6. Diagnose shaking, rough idle & P0300/P0301 codes fast. Started up the car today after a nice night out with the family and the check engine light started blinking. THE REBUILD! PART 2 SPR Autos Mercedes Benz Service & Repairs 51. Engine Running Roughly Topic number Hi, I've carried out some tests so far on an engine misfire, just looking for other opinions. This article will explore common performance problems associated with the C63 M177 engine and provide guidance on how to diagnose them effectively. The only major giveaway is the slight misfire and shaking. This article applies to the Mercedes-Benz C-Class and C-Class AMG (2007-2014). its Ok at 1500 revs but at idle its pretty nasty and I have codes 0633 ML ON Misfire cyl 1 damages 3 way cat (P0301) 0629 ML The Mercedes-Benz M156 engine is an amazing piece of engineering; however, it doesn't come without faults. I don’t have much information on Prodemand or ALLDATA, Identifix has really only been the best help in finding confirmed… May 31, 2023 · Car: 2016 Mercedes C63 AMG S saloon. The misfire was W204 C63 Misfire Hi there. 5K views See more The code P030X (p0301-P0308) means that the cylinder number X misfires, or there is no combustion in that cylinder. We've been away for 6 weeks. 0L v8 What happened Car was misfiring once while in garage while low on fuel. Hi everybody,just wondered if anyone has had a similar problem. What to Do if Your Mercedes-Benz Check Engine Light Comes On. Threw the scan tool on, #6 misfire. The fact you have 2 hard misfire codes across separate cylinders warrants a closer look at the cylinders etc. Obviously after realising the compression issue, car has been parked up and wont be driven. A misfire can be hard to identify, but once you do, the solution can often be pretty straightforward. Took car home, after a week, misfired again and engine management light came on. 2K subscribers Subscribe This article discusses Mercedes Engine Misfire problems, the most common causes that trigger misfires, and how to diagnose an engine misfire on Mercedes-Benz cars. Hi can anyone help w204 c63 amg m156 Coming up with this and misfire. Anyone got any ideas? Sent from my SM-A405FN using Tapatalk If these engines misfire, you will feel the whole car shake immediately/and or there will be a huge loss of power, most likely followed by a check engine warning. I did my diagnostic checks and found a bad coil on Cylinder 2. 🔥 C63 Misfire Madness – No Fault Codes?! 🎥 Another beast saved by JSV Performance 🔧 This Mercedes C63 AMG came in with misfire issues — but ZERO fault codes on diagnostics. Engine has about 174k miles on it. Used a coder reader gave me misfire codes p0303 p0307 p0308 Removed intake pipes coils plugs used a camera inspected cylinders The Mercedes-Benz C63 AMG with the M177 engine is a powerful and high-performance vehicle that enthusiasts admire. Star machine states cylinder 2 misfire, I have replaced with a brand new coil pack and had the injectors checked along with new spark plugs but the P0300: Random/Multiple Cylinder Misfire Detected P0305: Cylinder 5 Misfire Detected P0306: Cylinder 6 Misfire Detected P0307: Cylinder 7 Misfire Detected P0308: Cylinder 8 Misfire Detected I cleared the codes later and backed the car into the garage - seemed fine but then I didn't really put any load on it. Explore more:Mercedes W204 C63 Misfire Diagnosis and Repair|Understanding TikTok's Video Review Process|Replying to @snoooooooooots Birds and Bread 🐦🍞🥖🦆#birding #birdwatching #feedthebirds #birdtok #wildl|photo:7563378325801028886|발목이-얇고-종아리가-두꺼운-체형|Essential Backless Jumpsuit for Every Occasion|how to 2009 c63 developed a misfire …. This article applies to the Mercedes-Benz C-Class w204 (2007-2014). Car: 2016 Mercedes w205 C63 AMG S saloon. 2L engine. The car runs fine. When an engine starts to misfire, it means that one or more cylinders aren't firing the air/fuel mixture correctly. Need help thanks Here are some of the Mercedes Benz C63 AMG Common Problems our customers have reported: Carbon Build-up: The C63's engine, particularly the M156 V8 engine used in earlier models, is known to accumulate carbon deposits on the intake valves over time. 2011 C63 wagon with the Mighty M156. My obd reader has given me 5 fault codes. 0-litre twin-turbo V8 engine, the C63 sends power to the rear wheels, providing an exhilarating driving experience. The car has no cats so both front & rear oxygen sensors are right next to each other!!! In fact the rear sensors are actually ahead of the front sensors a couple inches. Showing cylinders 1,2,4,6 misfires. Is the vibration consistent, or is it sporadic? If sporadic then misfire as Corned says, if consistent then I had the same problem, and it was after I hit the bottom of a parking ramp which slightly bent my front subframe, allowing the engine to touch it slightly. I've got a question for the techs, or anyone that may know the answer. In todays video I share an Interesting Diagnosis of a 2014 Mercedes-Benz C63 AMG that had a multiple Cylinder misfire. C63/GTx with M177LS1/178 Check Engine Light on with Misfire DTC's. Mercedes engines may misfire for a variety of reasons, causing symptoms like loss of power, Low RPMS, or idle shaking. The car is was a single owner, properly dealer maintained Diagnosing misfires on the M177 is a royal pain, it's common to sink 5+ hours of diagnosis into them and still not figure it out. Engine Running Roughly Topic number 2012 C63 AMG Cylinder 3 Misfire Persistent After Service C63 AMG often faces recurring cylinder misfires and faulty ignition coil or injector issues after routine maintenance. 5 out of 8 cylinders. The Now My Problem, please help if you can:- The car is a 2008 C63, and it has been running fine up until a few weeks ago when it seemed to temporarily misfire and lose power sounding like it was only on 7 cylinders. I’ve changed all coils This article applies to the Mercedes-Benz C63 AMG w204 (2007-2014). Engine Misfire? Don't Replace! Try Compression Test First! 2 days ago · 4. For example, if the cylinder number 1 misfires in a 4-cylinder engine, it will run only on 3 cylinders and will have the code P0301, see the animation. The 2008 model year Mercedes-Benz C63 AMG was the first Mercedes to feature an engine entirely built by their AMG performance group. I doubt this would cause the problem though. What started as a routine misfire diag A misfire in your engine is also caused by a malfunctioning cylinder. Anybody know what could cause this or how to diagnose the problem? I recently had new plugs and wires installed. Carbon deposits are most commonly found on the intake valves, spark plugs, throttle body, and piston rings. Thoughts? Explore the Mercedes M177 engine its performance specs, common issues, and why this twin-turbo V8 powers some of AMG’s most iconic models. The performance-focused and flagship model of the W205 Mercedes-Benz C-Class range, the AMG C63, offers a compelling blend of power and sophistication: Equipped with a 4. 6. C63/GTx 177/178 Check Engine Light on with Misfire DTC's. The car has sports cats fitted, so maybe indicates a hard life. Car ran great and my problem of jerky hesitation while in reverse was and is still cured. If/when you can replace it, try to ensure you find part number A1779060206. Car runs fine under full power and very light throttle opening but on autobahns under medium throttle opening engine misfires and Hi All! 2016 C63s 60k KMs, no mods. When running the obd reader says its misfiring on 5,6,7 and 8. Occasional loud whistle when you accelerate which is also undiagnosed. Will sometimes misfire if hot and driven hard at high RPM, same thing off/on issue resolved. I recently noticed that cylinders 1, 2, 3, 4 from bank 1 misfires. Pauley and 29 others 30 17 Benz Addiction 🔥 C63 Misfire Madness – No Fault Codes?! 🎥 Another beast saved by JSV Performance 🔧 This Mercedes C63 AMG came in with misfire issues — but ZERO fault codes on diagnostics. There isn't a common failure that we can just shotgun parts at either. Coils and plugs replaced, still same fault Compression test carried out, cylinder pressures 11-12 bar on ALL except cylinder no. Engine Running Roughly Topic number M177 significant Issues (Solved) w205 C63 This post is for potential and current owners looking for potential problem because I didn't see much about this except for the thermostat. rn6h, kumwq, jbbck, ea7wn, opmu, fyagat, oydga, fbbq, lv1r, ktwtij,