Warranty extension EW - Camshaft Adjuster

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

This NCU replaces the prior NCU issued on October 30, 2020 and contains clarification on Camshaft Adjuster kit contents. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2012-2015 Mercedes-Benz Model 204 and 172 vehicles (C250 and SLK250), the warranty on the camshaft adjuster will be extended from the original 4 years/50,000 miles to 10 years/120,000 miles (whichever occurs first) from the original warranty start date. This camshaft adjuster extended limited warranty applies to all conditions that necessitate the replacement of the camshaft adjuster under the standard warranty terms and conditions. Please be advised that at least one camshaft adjuster being claimed under warranty must have a short test with fault code uploaded, and maybe inspected. The following damage codes and parts kit can only be claimed for the replacement of the camshaft adjuster: Damage Code: 05050 – Camshaft adjustment, intake camshaft Damage Code: 05052 – Camshaft adjustment, exhaust camshaft Parts: A 271 050 21 00 80 – Camshaft adjuster, kit (ensure all parts in the kit are replaced when performing repair)

The document

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Components

Engine

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