I'm worried now
He told me to ditch my S600 at the end of the warranty because he said I will have terrible problems with it afterwards. The whole statement began when I said how little trouble I've had with my car. He said that I've just been lucky but to get rid of 'er before the 50,000 mile mark.
He said MB just can't seem to get things right with their V12's.
Does anyone know of this big of a problem with the V12s??? I asked him about the V8's and he said they are far better and no big problems usually pop up. He also said to forget about the 10K+ miles between oil changes and that I should get it changed every 6K miles or I will have oil leaks and oil burning problems really soon. He said if I leased it, don't worry about it but if I purchased it and plan on keeping it that I'd better get the oil changed electively at least every 6K miles.
New S-Classes are world's most complex cars, w/numerous, expensive, new-tech computer systems, advanced headlights, safety systems, etc...no one really knows what are decay curves of the various systems, esp after original factory warranty...it's an on-going science experiment...
Human risk of various cardiovasc/cancer health issues increases dramatically after age ?45...suspect cars have a similar risk curve post-some age/amt of use...
Also would calc value of one's time to take any car to dealer for svc/repairs (warranty or not)...suspect most 600 owners' time is rather valuable....
And suspect decay of various airbag sensors/systems, seatbelts, DistPlus, etc makes >3yo cars less safe over time (a 4-5yo 600 might be as unsafe as a new Lexus/BMW
)...airbag systems have a ?10 yr lifespan; doubt they suddenly die 10yrs post-build...would guess the failure rate of airbags/seatbelts, etc quickly increases after 3-4yrs post-build....
Just my feeling but I think he blew this way out of proportion. If one takes care of the cars as I do, I don't see where they would give any more trouble than any other car. I don't dog my car and I pamper the hell out of it.
New S-Classes are world's most complex cars, w/numerous, expensive, new-tech computer systems, advanced headlights, safety systems, etc...no one really knows what are decay curves of the various systems, esp after original factory warranty...it's an on-going science experiment...
Human risk of various cardiovasc/cancer health issues increases dramatically after age ?45...suspect cars have a similar risk curve post-some age/amt of use...
Also would calc value of one's time to take any car to dealer for svc/repairs (warranty or not)...suspect most 600 owners' time is rather valuable....
And suspect decay of various airbag sensors/systems, seatbelts, DistPlus, etc makes >3yo cars less safe over time (a 4-5yo 600 might be as unsafe as a new Lexus/BMW
)...airbag systems have a ?10 yr lifespan; doubt they suddenly die 10yrs post-build...would guess the failure rate of airbags/seatbelts, etc quickly increases after 3-4yrs post-build....In one way I thoroughly agree with you but I don't have the discretionary income to lose $70K every two years on a car. I would like to at least own the car to the point that what I owe on it equals what I can get for it. Best thing for me to consider next time is a lease since I only go about 15K miles /year on a car.
Could you post average payments on a S600 for a 24 to 39 month lease??? This definitely will be my next approach at taking one of the lot next time. It's just I love the car I have and really have no desire for a new one since its been faithful to me so far.
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He told me to ditch my S600 at the end of the warranty because he said I will have terrible problems with it afterwards. The whole statement began when I said how little trouble I've had with my car. He said that I've just been lucky but to get rid of 'er before the 50,000 mile mark. He said MB just can't seem to get things right with their V12's.
Even though this place is just a few blocks away, your S600 is still pretty new and well inside warranty. In your position I would never even consider having such a car serviced by a non-MB dealer. (And 20 miles is hardly a chore to drive in your S600! - my dealer would come that far to pick my car up or offer me a loaner)
Anyway, based on the (many) threads I have read concerning M275 V12 reliability I also believe that this individual is basing his comments on the older M137 V12 and is blowing things way out of proportion. (Which had only a short 3 years life after the older M120 V12 was phased out. (That rapid product cycling perhaps being the source of his "can't get things right" statement)
This is a non-MB shop mechanic who branched out on his own several years ago. I doubt that he has seen many/any more recent M275 TT V12's as few owners will take their new vehicles to a non-MB dealer outside of the 4 year warranty period. His substantive experience is likely not going to be any later than the 2002 - 2004 period - when there were recognized issues with the older M137 V12.
And even if he has personally encountered some problems with more recent engines he represents an exceedingly small statistical data point. If there were really problems with the post 2002 V12 TT of the magnitude he describes we would surely be hearing about it in the far larger sampling of this website - and I can recall few if any comments. (I read the w220 forum also) The later M275 V12's seem pretty solid if driven properly and serviced regularly. Some have pointed out that the current 3-valve M275 is an "older" engine design and it is - but that also means it must be pretty well understood by now and has benefitted from incremental improvements in each model year based on real world service experience. I have few fears, and even if I did extending the warranty to 7 years buys more peace of mind,
I have also had the oil change discussion with my SA (several times) and he insists that 10,000 miles is fine for the current S600. Again surely given the sample size of owners represented on this board (and Benzworld) we would surely be hearing about more problems if they were occurring with any meaningful statistical regularity.
Chris
Last edited by cjf_moraga; Aug 16, 2008 at 12:19 AM.

He told me to ditch my S600 at the end of the warranty because he said I will have terrible problems with it afterwards. The whole statement began when I said how little trouble I've had with my car. He said that I've just been lucky but to get rid of 'er before the 50,000 mile mark.
He said MB just can't seem to get things right with their V12's.
Does anyone know of this big of a problem with the V12s??? I asked him about the V8's and he said they are far better and no big problems usually pop up. He also said to forget about the 10K+ miles between oil changes and that I should get it changed every 6K miles or I will have oil leaks and oil burning problems really soon. He said if I leased it, don't worry about it but if I purchased it and plan on keeping it that I'd better get the oil changed electively at least every 6K miles.
Funny how these opinions appear even among people who have reasonable experience about cars. I guess 90% are just jealous (a good reason to be jealous but it should be OK to show it in a positive way), the rest perhaps mistakenly refer to some old info that isn't valid for this model.
Even though this place is just a few blocks away, your S600 is still pretty new and well inside warranty. In your position I would never even consider having such a car serviced by a non-MB dealer. (And 20 miles is hardly a chore to drive in your S600! - my dealer would come that far to pick my car up or offer me a loaner)
Anyway, based on the (many) threads I have read concerning M275 V12 reliability I also believe that this individual is basing his comments on the older M137 V12 and is blowing things way out of proportion. (Which had only a short 3 years life after the older M120 V12 was phased out. (That rapid product cycling perhaps being the source of his "can't get things right" statement)
This is a non-MB shop mechanic who branched out on his own several years ago. I doubt that he has seen many/any more recent M275 TT V12's as few owners will take their new vehicles to a non-MB dealer outside of the 4 year warranty period. His substantive experience is likely not going to be any later than the 2002 - 2004 period - when there were recognized issues with the older M137 V12.
And even if he has personally encountered some problems with more recent engines he represents an exceedingly small statistical data point. If there were really problems with the post 2002 V12 TT of the magnitude he describes we would surely be hearing about it in the far larger sampling of this website - and I can recall few if any comments. (I read the w220 forum also) The later M275 V12's seem pretty solid if driven properly and serviced regularly. Some have pointed out that the current 3-valve M275 is an "older" engine design and it is - but that also means it must be pretty well understood by now and has benefitted from incremental improvements in each model year based on real world service experience. I have few fears, and even if I did extending the warranty to 7 years buys more peace of mind,
I have also had the oil change discussion with my SA (several times) and he insists that 10,000 miles is fine for the current S600. Again surely given the sample size of owners represented on this board (and Benzworld) we would surely be hearing about more problems if they were occurring with any meaningful statistical regularity.
Chris
He told me to ditch my S600 at the end of the warranty because he said I will have terrible problems with it afterwards. The whole statement began when I said how little trouble I've had with my car. He said that I've just been lucky but to get rid of 'er before the 50,000 mile mark.
He said MB just can't seem to get things right with their V12's.
Does anyone know of this big of a problem with the V12s??? I asked him about the V8's and he said they are far better and no big problems usually pop up. He also said to forget about the 10K+ miles between oil changes and that I should get it changed every 6K miles or I will have oil leaks and oil burning problems really soon. He said if I leased it, don't worry about it but if I purchased it and plan on keeping it that I'd better get the oil changed electively at least every 6K miles.
I bought my S 600 as a "keeper" as I've had so many Mercedes S class cars.
Now I've finaly got every frickin option and love this car. Given Mercedes' history, I'd bet that this car will be quite fine well out of the warranty period.
You see a lot more old, old Mercedes on the road -- more than any other car.
Even very used Bimmers are fewer and farther between than MB's.
Hence, I too will be planning to save the 70 g's or so every couple of years and enjoy my car for a long long time, while other manufacturers will be trying to catch up with the quality, options and handling of this very fine vehicle for years to come. btw, that mechanic seems to have a chip on his shoulder and seems way off base... As for WSH, dealers love you so keep them happy...
I bought my S 600 as a "keeper" as I've had so many Mercedes S class cars.
Now I've finaly got every frickin option and love this car. Given Mercedes' history, I'd bet that this car will be quite fine well out of the warranty period.
You see a lot more old, old Mercedes on the road -- more than any other car.
Even very used Bimmers are fewer and farther between than MB's.
Hence, I too will be planning to save the 70 g's or so every couple of years and enjoy my car for a long long time, while other manufacturers will be trying to catch up with the quality, options and handling of this very fine vehicle for years to come. btw, that mechanic seems to have a chip on his shoulder and seems way off base... As for WSH, dealers love you so keep them happy...
He said MB just can't seem to get things right with their V12's.
Does anyone know of this big of a problem with the V12s??? .
Similar experience at my local dealer. I asked my longtime salesman about the SL55 vs SL600. He directed me to the service manager who told me to RUN away from any 600 car. He further said that, at any given time, 10% of these cars were in the shop.
He had no dog in this fight.
I basically agree with some of the other posters. I would not want to own any MB out of warranty, especially any 600 series.
Based on these facts, I'd conclude that the W221 (S550's and S600's) are very nice, trouble free cars.

Enjoy.






