2012-2014 M276 E350 TSB Regarding Piston Wrist Pin
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w163
2012-2014 M276 E350 TSB Regarding Piston Wrist Pin
I am looking at purchasing a 2013 E350. I have owned Mercedes models in the past, and I believe the W212 offers what I want in a daily driver. However, I have stumbled upon the following TSB:
LI03.10-P-054702 Models with 276 engine-knock noises in crank assembly, repair requires the replacement of all connecting rods & pistons with wrist pins assembly. Until engine 276 9xx 30 567600.
Cause:
The knocking noise might be attributed to the unfavorable tolerance of the piston wrist pin resulting in enlarged end float of the connecting rod in the piston.
Is this an issue that happens often? I am just wondering about the reliability of the M276 engine in regards to this specific issue for engine numbers that fall into that range. Am I reading too far into this? Is it a non-issue?
Thank you
LI03.10-P-054702 Models with 276 engine-knock noises in crank assembly, repair requires the replacement of all connecting rods & pistons with wrist pins assembly. Until engine 276 9xx 30 567600.
Cause:
The knocking noise might be attributed to the unfavorable tolerance of the piston wrist pin resulting in enlarged end float of the connecting rod in the piston.
Is this an issue that happens often? I am just wondering about the reliability of the M276 engine in regards to this specific issue for engine numbers that fall into that range. Am I reading too far into this? Is it a non-issue?
Thank you
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
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From: Miami, FL
2003 CL 600
Nothing to worry about. Even if it was one of the very rare affected cars, it's only a light noise shortly after startup, nothing that's catastrophic or even noticeable in most cases. I've never actually seen it happen to a V6 car, even though the bulletin includes some of them.
MBWorld Fanatic!
Joined: Apr 2006
Posts: 4,694
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From: Dallas-Ft.Worth,TX
2016 E350 Sport
The M-B data sheet for anyone's car lists not only the VIN, but also the engine's serial number. Compare the number with the upper limit SN noted in the bulletin to see if your engine is newer and not affected.
