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    • Class action suit against Daimler AG / Mercedes due to M156 V8 (63 AMG) engine defects

      A class action suit is being brought against Mercedes / Daimler AG due to alleged defects in the M156 V8 motor. The suit states that these defects are due to premature wear. The premature wear taking place as a result of the material used in the camshafts. The camshafts used are made of cast nodular iron. The valve lifters used however are made of 9310 grade steel. In the official complaint it is stated that the combination of these metals as designed is contributing to premature wear of the M156 motors. This can be due to improper heat treating of the metals or improper offset. The main sticking point is that Mercedes and AMG have known about this since 2007 when service bulletin S-B 05.20/20b was released. We will keep you updated on the details as this goes forward.




































      This article was originally published in forum thread: Class action suit against Daimler AG / Mercedes due to M156 V8 (63 AMG) engine defects started by Sticky View original post
      Comments 842 Comments
      1. Yomama69's Avatar
        Yomama69 -
        Click here to enlarge Originally Posted by M3_WC Click here to enlarge
        It says in the beginning of the suit "The Mercedes-Benz in question was accompanied by Mercedes-Benz's New Vehicle Warranty..."
        The way I read it, it's because the dude leased the car and it had a warranty. The warranty is at issue, because Mercedes didn't replace the defective parts under warranty via a recall even though it was aware they were defective.
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I think that just means the car had a Mercedes warranty at time of purchase.
        +1
      1. Sonny's Avatar
        Sonny -
        Click here to enlarge Originally Posted by Yomama69 Click here to enlarge
        You're assuming warranty was denied. He could have been out of warranty. It didn't specify. Probably because it doesn't matter.
        Please re-read count 11 (part in bold) and count 15 under "Factual Background."

        Warranty was denied.
      1. Yomama69's Avatar
        Yomama69 -
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        Please re-read count 11 (part in bold) and count 15 under "Factual Background."

        Warranty was denied.
        That's just a quote. I'm assuming from the warranty in the owner's manual. I would think it would have stated the warranty was denied if it was denied. That should actually help the dude's cause. I think you're reading into it, because you expect a warranty denial.
      1. Sonny's Avatar
        Sonny -
        Click here to enlarge Originally Posted by Yomama69 Click here to enlarge
        That's just a quote. I'm assuming from the warranty in the owner's manual. I would think it would have stated the warranty was denied if it was denied. That should actually help the dude's cause. I think you're reading into it, because you expect a warranty denial.
        This suit involves this particular plaintiff's warranty denial. That's how the complaint reads. It says warranty was denied in count 15 and count 11 shows what the warranty is about.
      1. Sonny's Avatar
        Sonny -
        Emphasis was added for the part in bold in count 11 because the complaint is pleading facts relating to repairs that should be covered under warranty but weren't for this plaintiff. And the last sentence in count 15 uses plain English to say that warranty was denied.
      1. Sonny's Avatar
        Sonny -
        Also see third sentence in count 26.
      1. M3_WC's Avatar
        M3_WC -
        So the question remains...why did they deny warranty work?
      1. Sonny's Avatar
        Sonny -
        ^ Well, unless MB's answer lists affirmative defenses as opposed to general denials we may never know.
      1. 63amg's Avatar
        63amg -
        You think you are so smart, its unbelievable. I pretty much haven't heard of any M156 engine failure. My car has 80.000km and it has never had an engine problem. The ticking noise was always present from time to time, but it is very very rare. Usually when I am low on oil. Anyways I will also only say, GOOD LUCK WITH SUING AMG haha lol
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 63amg Click here to enlarge
        You think you are so smart, its unbelievable. I pretty much haven't heard of any M156 engine failure. My car has 80.000km and it has never had an engine problem. The ticking noise was always present from time to time, but it is very very rare. Usually when I am low on oil. Anyways I will also only say, GOOD LUCK WITH SUING AMG haha lol
        Head back over to MBworld where your IQ belongs.

        Nobody in this thread is suing AMG. This is a report about a class action lawsuit against Daimler AG along with the filed document which apparently confused you. Glad you feel they are infallible as well since they prey upon people like yourself. Way to support people trying to help make sure you get the quality you paid for. Good luck figuring that part out.
      1. 63amg's Avatar
        63amg -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Because people don't want to believe something might be wrong with their motors.
        Wrong. Its because every single owner I know, never had a problem with an engine. And this is also the first time I heard about it online as well.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 63amg Click here to enlarge
        Wrong. Its because every single owner I know, never had a problem with an engine. And this is also the first time I heard about it online as well.
        Ok everyone, shows over. This guy hasn't heard of a problem and clearly knows all the online sources as well seeing how he just registered here. Nothing to see, move along.
      1. P31-C63's Avatar
        P31-C63 -
        Great now I got something else to keep me up at night!Click here to enlarge

        Does anyone know if the P31 internals address this issue, i can't remember exactly what's different in the engine internals and I'm too lazy to look it up!Click here to enlarge

        Either way, this gives me good ammo for the wife to replace the C63 with the new CLS63Click here to enlarge

        Thanks for the info Sticky.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by P31-C63 Click here to enlarge
        Thanks for the info Sticky.
        My pleasure, it's what I do.

        I also like giving you guys "real" news.
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        People on MBworld are amusing:



        Ok expert Click here to enlarge This law firm apparently has nothing better to do.
        I think I have to agree with the guy from MB World, I frequent 3 MB exclusive boards plus the MB section of 6Speed and I have heard of exactly one M156 failure and it was covered under warranty. There are literally hundreds if not a thousand plus members on these boards with the 63 motors in their car I think we would have heard about a few more if this were this was an epedemic especially since so many of the m have modded their car and drive them to the extrems at the track.

        I know you're in law school but here's a news flash...about 1/3 of the civil cases in the in the system are bogus but that's another conversation. I would really ike to hear from a few people that have had M156 failure. I will be paying close attention to this suit, however at this time I have this suit marked as "Bogus".
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        I think I have to agree with the guy from MB World, I frequent 3 MB exclusive boards plus the MB section of 6Speed and I have heard of exactly one M156 failure and it was covered under warranty.
        If so, then how did I know about this suit almost a year in advance which would mean failures would have had to happen well before that?

        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        There are literally hundreds if not a thousand plus members on these boards with the 63 motors in their car I think we would have heard about a few more if this were this was an epedemic especially since so many of the m have modded their car and drive them to the extrems at the track.
        Remember, this is not just a problem that will show with a complete motor failure. To see premature wear you have to open up the motor.

        I can tell you that MHP has some interesting info to share on this topic, @MHP LLC .

        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        I know you're in law school but here's a news flash...about 1/3 of the civil cases in the in the system are bogus but that's another conversation. I would really ike to hear from a few people that have had M156 failure. I will be paying close attention to this suit, however at this time I have this suit marked as "Bogus".
        I'm not pretending to play lawyer here or anything like that, this suit has nothing to do with me and I won't pretend to give any party legal advise or act like a legal expert. All I will say is that there certainly is something to it.

        I have "heard" about some internal AMG documents which do corroborate this which some "parties" on this board have access to. This document was not filed for fun, they are trying to win and believe they have a strong case.
      1. Yomama69's Avatar
        Yomama69 -
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        Emphasis was added for the part in bold in count 11 because the complaint is pleading facts relating to repairs that should be covered under warranty but weren't for this plaintiff. And the last sentence in count 15 uses plain English to say that warranty was denied.
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        This suit involves this particular plaintiff's warranty denial. That's how the complaint reads. It says warranty was denied in count 15 and count 11 shows what the warranty is about.
        Click here to enlarge Originally Posted by Sonny Click here to enlarge
        Also see third sentence in count 26.
        First off, those are paragraphs, not counts. Second, you're saying plain English, but nowhere does it use any combination of warranty and denial. You're assuming something that is not written in your so-called "plain English." Finally, "emphasis added" means that the author wants the reader to pay extra attention to a particular word, phrase, sentence, or paragraph.

        Try reading it in the morning when your brain isn't so exhausted.
      1. Yomama69's Avatar
        Yomama69 -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        I think I have to agree with the guy from MB World, I frequent 3 MB exclusive boards plus the MB section of 6Speed and I have heard of exactly one M156 failure and it was covered under warranty. There are literally hundreds if not a thousand plus members on these boards with the 63 motors in their car I think we would have heard about a few more if this were this was an epedemic especially since so many of the m have modded their car and drive them to the extrems at the track.

        I know you're in law school but here's a news flash...about 1/3 of the civil cases in the in the system are bogus but that's another conversation. I would really ike to hear from a few people that have had M156 failure. I will be paying close attention to this suit, however at this time I have this suit marked as "Bogus".
        Everyone is so focused on an engine failure. That's not the point of the lawsuit. The point is that the parts are wearing prematurely and can lead to a failure. Just because a failure hasn't been widespread doesn't mean that it's not more prone. I don't like receiving anything less than what I paid for. I hope you didn't pay for an AMG engine that is supposed to wear normally, because according to this lawsuit, that's not what you received.

        BMW extended warranty on the fuel pumps to 120K miles, because they knew they were defective and that gave owners the peace of mind that they would be taken care of with regards to the defect. If MB doesn't want to replace defective camshafts and lifters in each vehicle, the least it can do is extend the warranty on those defective parts.

        This $#@! isn't rocket science.
      1. Yomama69's Avatar
        Yomama69 -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        I know you're in law school but here's a news flash...about 1/3 of the civil cases in the in the system are bogus but that's another conversation. I would really ike to hear from a few people that have had M156 failure. I will be paying close attention to this suit, however at this time I have this suit marked as "Bogus".
        Most attorneys don't file bogus lawsuits, especially at the class level and especially the kind of suit where they have to put in their own money. If anyone really thinks someone just typed a bunch of pages and filed it in a court, y'all are sadly mistaken. I'm willing to bet these attorneys have seen this $#@! first hand by having an engine torn apart and they probably had experts evaluate the parts as well.

        File it under "bogus" if you want to, but attorneys don't put money into prosecuting cases without merit.
      1. LZH's Avatar
        LZH -
        Didn't AMG already say that the ticking noise was due to low oil pressure in the lifters at startup and after the oil warms up the noise goes away/no need for concern?? I know this is what the shop foreman at my dealer has told me...and since when have there been different variations of the M156 as mentioned earlier in this thread ?? I wasn't aware that AMG made any changes to the M156 - did I miss something ???
        Guess we'll all have to just wait this one out and see what happens. But my guess would be that it will be a looooong time before this reaches any sort of settlement.