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Stan
Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3526
Experience:  Technical support engineer
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M272 Engine

Customer Question

Good evening, I wonder if you can help me please? I have just recently bought a W203 C280 Avantgarde SE, 2006, 53,000 miles. It seems immaculate in every way...but I am hearing the M272 engine has balancer shaft issues. The engine number is ***** Is it possible to check if it's an at risk engine? Also, is it possible to check whether the shaft has already been done? Car VIN WDC2030542R202740? iIf the worse case scenario is bad engine, not replaced - what % of these 'bad' engines actually go on to have problems and after what mileage? Sorry for all the questions, but after 12 years solid service from my old W202 C240 I would be gutted if I have now bought a duffer. Many thanks for your patience.

Submitted: 2 years ago.
Category: Mercedes
Expert:  Shantal-Mod replied 2 years ago.
Hello,
I'm Shantal and I'm a moderator for this topic.
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Shantal
Expert:  Shantal-Mod replied 2 years ago.
Hello,
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Expert:  Shantal-Mod replied 2 years ago.
Hello,
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Expert:  Stan replied 2 years ago.
Hello,
Unfortunately your engine is in the risk group, and the issue has not been repaired within warranty period. The problem starts to show as of 50000 miles. The balance shaft gear material is too soft. So in my opinion, the issue will come out sooner or later on all engines, depending on the timing chain load ( accelerations, cold starts ,etc.)
Best Regards,
Stan