Mercedes benz m157 cylinder scoring problems forum. I love mine, 2013 s212 s.
● Mercedes benz m157 cylinder scoring problems forum Now terraclean every spring to reduce carbon build up. Reply reply Top 1% Rank by Around £80 in uk. I absolutely love the 2013-2018 CLS550/63 especially the pre-facelift model. Unfortunately, Eric doesn't offer a cause for the bore-scoring issue. 5 mm piston stroke and a 10. 3 cylinders below, forgot to take a photo of the other cylinder . The main problem is when you do A cylinder leak down test and cylinder compression testing is the only way to diagnose if cylinder scoring is in fact causing engine problems. BenzWorld. There is an atmospheric version of the engine with a cylinder deactivation system and the M152 index. Owners forums, Reddit threads and past research serve us as basis. 5-liter bi-turbo Mercedes M157 engine was produced in Germany from 2010 to 2019 and installed on AMG modifications of the CLS-Class, E-Class, ML-Class, GL-Class and S-Class models. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. Some ‘06 and ‘07 are subject to balance shaft sprocket problems. In addition, the reduction in cylinder distortion (higher dimensional stability) that is possible with this alloy results in less noise and friction; engine-oil consumption and exhaust emissions are thus The 5. Cylinder scored pretty much the engine has had it. There is also the issue of the coil packs and leaking oil into the Common Mercedes M157 Problems. Every picture I've seen looks like normal scoring on the thrust side of an engine. This engine with rear wheel drive is a blast Mercedes Stratford suspect it's a gasket failure and I beleive it's all down to the headbolts. I cleaned them with seafoam and let them sit overnight. 7-liter V8 from an ML550 and finds severe issues inside the cylinders. org forum is one of the largest Mercedes-Benz owner websites Nobody denies there aren't issues with the M157 Tom. I bought mine with 53k miles and now The rep stated it could be time-chain sprocket or Balance shaft went bad, that "these M157 engines are known to have those problems". M. Reactions: reiserdm. Pre-detonation is the first sign something is wrong. M157 coil packs and cylinder numbering Thread starter cactussed; Start date Jun 22, 2022; Jun 22, 2022 MBClub UK is in no way 4. engine whereas M152/M157/M278 are Mercedes-Benz (passenger car) engines tuned by AMG. I've head it has the same issue. once you got it out you need to use 14mm socket and find mutliple extenders for this process because in first 1-4 cylinders extender fits barely. 86 in × 3. He says the valve springs are known to go bad on mercedes cars and that might be the issue if the Techron or flush doesn't work. welwynmerx. The cylinders are lined with a special alloy. Thread starter MB_Dom; Start date May 7, 2023; 1; 2; Next. Its difficult to think of a modern Mercedes AMG engine that hasn't had some kind of issue down the line. How common is cylinder head failure? - I have a 2021 GLC 300 with the M264 engine. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! My concern is the cylinder scoring and bent connecting rods that seem to be a common issue. I actually suspect Mobile 1 European car formula 0W – 40 oil is not the best oil for that engine. Forums. Apparently there have been one or two highly tuned M157's with total engine failure down to the design of the head of the con-rods. Reinstalled and the CEL went out for a bit but it was still idling rough and soon The Forums are now open to new registrations, adverts are also being de-tuned. Also, near the score marks, there is no carbon build up on the piston ? The other bank is fine , no marks on cylinder walls . The M276 V6 isn't immune from this problem, either. Tel: 01707 395999www. How common is this issue on. My concern is the cylinder scoring and bent connecting rods that seem to be a common issue. The M157 is the second variant of the M278 and is tuned by Mercedes-AMG with a bore and stroke of 98 mm × 90. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! My 2013, E 350 (58,000 miles) needs replacement of the left (bank 2), intake camshaft adjuster. Dreadful, I know. As I was leaving Autozone it would not start. 56 in) for use in higher-performance models. uk. There are rumours that these issues tend to be more exaggerated in areas with Recently became concerned about this known issue of the M157. Does this sound right? "As part of As a general rule, some scoring will cause excess oil burn, and some compression loss. org forum is one of the largest Mercedes-Benz BenzWorld. I brought the car back home and my fiancé tried swapping coils on cylinder 5 and 4thinking if that was itthe codes would follow. Heads off twice (carbon clean out and rebuild heads once) , one engine rebuild (carbon scoring cyl walls), one new short block (carbon scoring cyl walls), one time injectors and terraclean. The M278 engine has problems with the cylinder (coating). Its currently at a dealership in a different state and they gave me a loaner. There are six states of output OK so I took the whole fuel rail system out, tested each injector and they all worked. My two 2012 E63 M157 never gave me any issues, and as long as the timing chain issue has been dealt with, they should be fine Reaction score 2,857 Your Mercedes CLS 320 CDI, S350 Bluetec Jun 15, 2024 #4 M157 2014 GL63 AMG severe oil leak!!! HELP The root cause of the issue is a leaking oil filter housing assembly which btw is affected by changes in temperature. org forum is one of the largest Mercedes-Benz owner The Mercedes M157 engine has a lightweight aluminum cylinder block with a 98 mm cylinder bore, 90. Looking into buying a E63s W212. I had leaking coolant prior to breakdown. I’ve seen some engine has problem with the scoring at very For the M157 Owners, is there any major problems you’ve experienced with your engine after owning a m157 car. Major scoring will cause pressurization of crankcase, and oil loss through burning, and I thrash my m157 every time I drive. I recently took two M278 engines apart. dedication and 25 years of experience dealing with Mercedes-Benz and AMG passenger cars. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Mercedes-Benz CLA Forum. Very interesting! I was looking into the main cause of the cylinder scoring on the v8 biturbo engine in all model of the top Mercedes cars and suv . If you want to be cautious run something like that liquid moly ceratec in there to artificially coat the cylinder walls. Any 2013 or older are worse due to material and metal design. Softer metal on the camshafts lead to premature wear and in my case tons of metal in the oil ripping up the internals basically. We are an independent Mercedes-Benz and AMG camshaft lifters m157 rocker timing chain. 1 of 2 Go to page. 7M posts 727K members 2007 63 engine catastrophic failure Multiple cylinders with no compression and a bottom end full of chunks of metal and filings. that goes by the internal moniker M157. The cylinder banks are arranged in a ‘V’ configuration with 106 mm As a case in point, I Do Cars tears apart the Mercedes-Benz M278 twin-turbo 4. . Folks on various Mercedes-Benz-focused forums also report this Reaction score 1 Your Mercedes C230/2007/272 Oct 28, 2022 #1 Most of the mechanics here misdiagnose the problems. Save Share Mercedes-Benz Forum. Though, it’s pretty darn good considering it’s a high-performance engine. DOA. The M264 is the same engine, just for RWD cars. CLA General Discussion 2016 CLA250 12K miles - misfire on cylinder 1 CEL code is misfire on cylinder 1 - code P030185. 7. that tends to go wrong from what I hear. Joined Aug 23, 2022 Messages 24 Reaction score 23 Your Mercedes 2016 E63 Estate (previously GLC AMG 43) Interesting thread glad you’ve finally found the issue, always amazes me that the P0305 (2 times)misfire on cylinder 5. The site includes MB Forums, News jonnyquest777 Joined: Fri Feb 16, 2024 6:23 pm Vehicle: 2013 G 63 AMG Location: Midwest USA M157 Engine Technical Data. 7-litre V8 out of an ML550 and finds serious issues inside the cylinders. Next Last. Look into these problems and then enjoy. We drove (slowly) back to Autozone and had them check the codes again. MB_Dom Member. As of March 16th 2015, Engine number start : 2789xx 30 Heat kills the engines by design. Wouldn't surprise me if issues with the M177 don't come to light in a few years. Serial number range is in the stickies. In back cylinders 5-8 very limited space hard even to get the socket it, just need to be patient and use some hand skills ( Its possible ) Did this process first time in my garage took me 4 hours . Save Share BenzWorld. I pulled the codes and my family mechanic says its a cylinder 5 misfire. I thrash my m157 every time I drive. org forum is one of the largest Mercedes-Benz owner websites offering the most BenzWorld. During research, came across this video about the oil pump solenoid. So when Mercedes in their wisdom poorly designed the filter housing they used a black cap in the housing assembly which is typically not serviceable and tends to leak oil especially BenzWorld. 5 mm (3. My mechanic tried swapping coils, spark plugs, and wires. This is the Aluminum-silicone cylinder treatment. Overall, the M157 is a reliable engine, however it’s not bulletproof. Plus with the turbos there extra vacuum lines, coolant lines, etc. Mb stratford wont give me an official quote as they need to strip down the engine in order to officially diagnose it which could apparently run into 10hours labour or £2k before I could find out what's In this video, we discuss a common issue we have been seeing on Mercedes M278 & M157 AMG V8 Biturbo engines up to production date 12/2013. Things don't start off well. The V8-family includes: M113 E43, M113 E50, M113 E55, M119 Reaction score 7,560 Your Mercedes 2011 E class coupe 350 CDI Feb 3, 2020 #5 Jeez Louise!! Mega gains. Hello all, It's been about 8 years since I last interacted on this forum and also owned a Mercedes. Again from Merc only to ensure it lines up as needed vs the injector. This engine with rear wheel drive is a blast Never had a single issue with either car, although the bent rods reports on the M157 did make me nervous. Aftermarket can be issue next would be to look at spark plug on cylinder 5 as recommended earlier in this thread. They all loose E63 W212 M157 engine - Coil pack issue. By the way, I have already installed the recommended oil check valves in the engine block, and new chain tensioners for both banks during a The marks all look of a similar size and pattern . Mercedes recently extedned the warranry on the M260 engines due to cylinder head failures. Maybe this helps somewhat. Go. Some of the most common M157 engine As many of you may or may not know, Mercedes Benz M278 V8 engine used silitec cylinder barrels for many years. Things I checked - gas cap on secure, and I did pump with Premium gas - I also tried Quick Trip and Kum and Go gas and GLC Class (X253) - M264 engine. About £13 in uk also have you checked cam position sensor and cam solenoid electrical connectors for oil as if oil gets to ECU can cause issues Did Mercedes fix many of the M157 issues from earlier years? Is it a decent engine? Or are timing chains, cylinder heads warping, and cam adjusters still an issue from 2014 onwards? Would love to hear your thoughts on this torque monster Thanks guys! I Do Cars tears apart the M278 twin-turbo 4. (which she loved) due to cylinder scoring. indicating an individual cylinder problem) It would be the same frequency as a miss fire. 0 compression rating. These cars have cylinder scoring issues and harness issues, nothing else. I love mine, 2013 s212 s. Good luck. They’re torque monsters and very mod-friendly. Sixto 05 E320 wagon 202K miles . Watch this vide A new low-friction aluminum-silicon alloy in the cylinder sleeves of Mercedes-Benz production engines reduces piston-ring tension by half. You can learn a lot on owners forums but the information is scattered, and you have to spend hours compiling reliable information. then the issue is leaky fuel injectors, or blocked air filters, rail pressure (too high). It finally did after about 6 tries. Mercedes-Benz M157 Engine – Problem has been going on for years now so (maybe) unlikely it is fuel over that length of time/years. I maintained that vehicle meticulously. ldsjoibrybsrcsbifxyqcepuqlfemwepizgwhinkpfcbdbygjopzulz