Mercedes-Benz E550 Problem Report

Mercedes-Benz E550 Check Engine Light Due to Faulty Camshaft Adjuster Solenoid

(8 reports)

The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.

I complained to dealership 6 times about problem and light still comes on.... Less frequently now but problem still exists. -
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