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Mercedes-Benz E350 Problems

Check Engine Light and Engine Noise on Mercedes-Benz E350

Problem Description and Possible Solution

The engine in the E350 is known by Mercedes Benz to have issues due to a poorly manufactured gear on the balance shaft (also known as the counter-rotating assembly). Since the balance shaft gear is driven by the timing chain, which keeps the engine rotating synchronously, when it fails, the timing of the engine will change causing:

-Illumination of the Check Engine Light

-Rough Running Conditions

-Stalling

-Loud Rattle or Slapping Noise

-OBD Trouble Code P1200 and P1208

Correction for this issue is replacement of the balance shaft, or balance shaft gear. Replacement of the timing chain and tensioner should be done as well. The Mercedes Benz dealer may cover some or all of the repair cost on select vehicles as a result of a class action settlement.

(3 people reported this problem)

Mercedes-Benz E350 Vehicles With This Problem

RepairPal Verified
Average mileage: (–)
3 model years affected: 2006, 2007, 2008
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