Category archives: M157 common problems

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m157 common problems

Search My Stuff What's New 3 12 24 Mercedes M AMG engine reliability. Hi guys.

m157 common problems

Starting to give a 5. Can anyone enlighten me regards reliability? I know of one member on MBClub who ended up with a rebuilt at a cost of 11K. No thanks Wondering if I should now stick to my M C RussJ 58 posts months.

I think you'll find that its remapped, high torque 's that are driven hard which have problems with bent conrods. Stock engines are OK. Well worth a look.

AMG 5.5-liter V8 Biturbo Engine M157

No faults are logged and because its intermittent its difficult to demonstrate to a dealer. Doesn't seem to have any effect on driving though. Most engines have issues think Boxster but you have to consider what percentage fail and not get things out of proportion.

Are you buying from a MB dealer? If so you'll get 2 years warranty. Private purchase but will arrange for a proper independent inspection at PCS prior to purchase. I'll also arrange for a third party warranty. Now the question is to keep the C63 M or to get into the W and enjoy the pile of additional toys it has to offer along with the unnecessary unless I drive it and feel differently additional power it has to offer.

I also need to really consider if I prefer M 6.The cold start injector, also referred to as the cold start valve, is an engine management component found on many road going vehicles. It plays a key role in the performance, fuel economy, and starting characteristics of the vehicle, so when it does have issues the problems can detract from the overall drivability of the vehicle.

Usually a problematic cold start injector will display a few symptoms that can alert the driver that a potential problem has occurred and needs to be serviced.

One of the first symptoms typically associated with a bad cold start injector is a problem starting the vehicle. The cold start injector is there to enrich the fuel mixture of the vehicle during low temperature conditions, such as during cold starts or in cold weather. If the cold start injector fails or has any problems, it may not be able to supply the additional fuel required in cold conditions, and as result may cause the vehicle to experience difficulty starting.

A decrease in fuel efficiency is another symptom of a bad or failing or failing cold start injector. If the cold start injector leaks at the nozzle, and allows fuel into the intake this will cause an excessively rich mixture. This leak will result in a decrease in fuel efficiency, and in some cases performance and acceleration. Engine performance issues are another symptom commonly associated with a bad or failing cold start injector. If a cold start injector fails or develops a large enough leak it can lead to engine performance issues.

A leaky cold start injector may result in a reduction in engine performance and acceleration as a result of the disturbed air fuel ratio.

In more severe cases, where a large amount of fuel is leaking into the manifold the vehicle may even experience stalling or misfires. If your vehicle begins to display any of the symptoms above, or you suspect that your cold start injector has failed, have the vehicle diagnosed by a professional technician, such as one from YourMechanic, to determine if your car needs a cold start injector replacement.

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m157 common problems

Service Area. Average rating fromcustomers who received a Fuel System Inspection. Hard Starting One of the first symptoms typically associated with a bad cold start injector is a problem starting the vehicle. Decrease in MPG A decrease in fuel efficiency is another symptom of a bad or failing or failing cold start injector. Engine performance issues Engine performance issues are another symptom commonly associated with a bad or failing cold start injector.

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After new battery and alternator, truck won't start Hello! It sounds as if your have a parasitic drain present. I would have a technician perform a parasitic draw test on the vehicle. It should be fairly easy to isolate the circuit that is draining the battery by performing If the pressure at the exit side of the fuel filter is normal and yet the pressure on the fuel rail is essentially zero, Will a v 6 chevy fuel injector fit in a 2.Audi vs.

All of the German big three, Audi, BMW and Mercedes-Benz, each have their own big twin-turbo V8 that they pump out in a variety of different high-performance cars. Audi has, in recent years, been using a 4.

It uses twin-scroll turbochargers on all RS models, while the standard S models get single-scroll turbos. The 4. The S63 also has top-mounted twin-scroll turbocharger mounted in the vee of the engine and also features variable valve timing and direct injection.

The BMW and Audi engines are remarkably similar, in terms of design and power. So the BMW makes more horsepower but less torque than the Audi 4. The M is a 5. This gives the E63 AMG a more linear powerband, with torque and horsepower seemingly coming in smoother, though it does develop a lot less power and falls flat at its 6, rpm redline, while the Audi and BMW keep on going a bit longer.

Admittedly, Mercedes has developed a 4.

m157 common problems

The one advantage the Merc might have is the noise, however, as the M sounds excellent. All three are excellent engines, develop an incredible amount of power and are all incredibly smooth. The only things to give the Audi 4. Other than that, these two are the best big German engines you can currently buy.

BMW labels codes their ….

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To celebrate the occasion, the German company went over some of …. I mean seriously are you just incapable of doing any research at all? All the engine specs are just wrong.

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The m does not produce hp. Torque figures are wrong as well. Also there are different versions available of all three engines so the comparisons are wrong as well. S63 hp, rpm are wrong. M hp, torque and rpm are wrong. S63 is available with metric hp. M is available with metric hp.

M also produces most torque of the three. So his comparison and conclusion are wrong. And so on. Sorry Horatiu but the others are right. Not sure why you of all people got those numbers wrong.? But there is absolutely no version of the m that only produces hp. As is the torque value. Suggest you do homework on your specs and conclusions.

M was dynoed over hp at the wheels by Motortrend see youtube more than S63TU competition. The E63s consistently beats M5 and matches with Audi. And engine is not old. You dont seem to understand how hp and torque come in versus displacement. John vicic your also wrong. Hello, does anyone here have thoughts on these two articles below about BMW turboMessages: AdamcccJul 24, Cyclone1 likes this.

Interesting - which timing chain was replaced? I didn't know that timing chains were a problem area with the M - first time I've read about it. Is there a TIPS case? I have had a tensioner replaced, but no other issues.

AlexMJul 24, Messages: 8, What year is the car? Is it in the range of the earlier engines with the oil drain-down issue, or later than that? Cyclone1Doc mattAnders and 1 other person like this.

Yes, I have a Xentry document about it, and my first E63 had the work done under warranty in Interestingly, there was a bit of a delay when the dealership did the work on mine because once they had it apart they found out they needed to order in some single-use magnesium bolts that weren't on the list of parts required. Sent from my iPhone using Tapatalk.

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Thanks Phil, I'm going to investigate as the car has always been at dealer centres so if they haven't carried this work out I'll be pushing for the work to free of charge. AdamcccJul 25, Seems strange that mine didn't get a recall with it being an early car.

Phil may be able to answer this, but was there actually a recall for this item or was it just a case of fixing those cars that developed a problem? I presume most haven't had an issue. RickMMJul 25, Messages: 16, Isn't your car mapped and tuned etc? Have Mercedes been funny at all with you with regards warranty work? SPXJul 25, My car was remediated under warranty additional oil check valve installed, timing tensioner and guides replaced while in the dying days of the factory warranty period.

The main difficulty I had was getting the start-up rattle to manifest itself to demonstrate to the dealer. Interestingly, my engine number is supposed to be unaffected by the problem, yet it was!. AlexMJul 25, Is this something that will affect later facelift M's such as my own E63? FateSynchroJul 25, User Name. Log in. Remember Me? AMG M V8 vs. Stevenh -PM.

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That 8. Checked C63S specs on MB's site and they're showing What is the difference between the two? I thought it was a shared platform. I guess the E63 has a whole lot more boost cramped into it hence the lower CR.

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Sticky -PM. Originally Posted by Stevenh. But since we are "for now" limiting the torque on the 9G to Nm, I have provided the results of Nm-tunes for both engines It doesn't have an effect on the resulting power and both are showing the TUNE only crank power, which is possible without further modifications Batman -AM. Sticky -AM. Originally Posted by Batman.

Please correct me if I'm wrong. Are you saying that both engines are "basically" making the same amount of power and torque with a tune only?

How many pounds of boost is the M engine running compared to the M? Batman -PM.Messages: FateSynchroJul 26, Messages: 3, AlexJul 26, JattAmgJul 26, Messages: 8, What he is saying is after only miles with a full MBSH, the timing chains have stretched to the extent that the cam timing can't be maintained.

Whether the car is in our out of warranty, that is completely unacceptable. For MB to wash their hands of a customer and refuse a goodwill claim in unacceptable. This is so far below the expected service life of these components that there is a design or material defect that should be fixed by them. I'd go straight to MBUK, and consumer rights if that didn't get you anywhere.

AlexMJul 26, Messages: 1. Sorry to bring this dead topic back to life, although I can't seem to find anything else on this subject. I was with my girlfriend driving down autobahn when doing my road trip of Europe, got to MPH and electronic limiter kicked in.

All of a sudden my engine light came on and car went in to a limp home mode until I restarted the engine. Took it to MB Munich and they told me wrong spark plugs where installed?!

I took it in as soon as I got back, they told me one of the oil sensors on the cam I think? I agreed to the fixes. They've had my car 1 month and 13 days counting. Had to pay for my own courtesy car for the first 2 weeks. I'm at my wits end and stuck with a shitty CLAd!As the multitude of vehicles equipped with the M engine reach higher mileages, there are a handful of common issues that tend to crop up. We have solutions to these common issues as we recommend being proactive to keep your M engine running optimally.

The M is a 6.

Mercedes-Benz M156 and M159 engines (2006-14)

It is a high-revving engine with four-valves-per-cylinder, variable valve timing, and a variable length magnesium intake manifold. In true AMG fashion, each engine is assembled by a single technician with that tech's name engraved on a plaque fastened to the engine.

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As always, if you have any questions or comments, leave them in the comments below. There was a time when the engineers at Porsche were commissioned to build a W Mercedes-Benz. This factory widebodied, V8 powered E was the result Read More. The differential is an often overlooked component on vehicles that requires regular maintenance.

Something as simple as regular fluid flushes can keep your differential functioning optimally for the If you're finding oil spots underneath your Mercedes-Benz, don't panic—it's probably not from your valve covers or oil pan. It's most likely your oil cooler gasket that is extremely easy to replace.

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The power steering fluid reservoir on Mercedes-Benz models with the M, M, and MK engines feature an integrated filter. Over time, this filter can become clogged and cause problems with your It distributes hot or cold air through the ventilation system of your car. If you're experiencing There's a lot to consider after graduation—where you're going to work, where you're going to live, what your friends are up to, and much, much more. I found myself asking a lot of the same questions As a professional driver and a family man, how does one bridge the chasm between two worlds?

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