WenmarOpen by Wenmar Pro

Service bulletin 070021A

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10000332
Published by NHTSA2003-02-24
Manufacturer's number070021A
Manufacturer's date2002-10-10
Replaces070021
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

SOME MODEL 211 VEHICLES EQUIPPED WITH ENGINE 113.967 MAY EXHIBIT ENGINE TICKING (PISTON SLAP LIKE SOUND) NOISE WHEN ACCELERATING BETWEEN 1200 AND 3000 RPM. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
MERCEDES BENZ MERCEDES BENZ2003

Listing a model year does not mean every vehicle of it is concerned: the document says which.