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Service bulletin 070021D

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 id10000638
Published by NHTSA2003-03-26
Manufacturer's number070021D
Manufacturer's date2002-12-02
Replaces070021C
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

ENGINE TICKING (PISTON SLAP) NOISE COMPLAINTS WHEN ACCELERATING BETWEEN 1200 AND 3000 RPM. MODELS E500, SL500, CLK500 MY2003. *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 CLK CLASS2003
MERCEDES BENZ E CLASS2003
MERCEDES BENZ SL CLASS2003

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

Other bulletins for the same vehicles and component
20031100062004-05-21. Service bulletin. INSTALLATION OF WIRING HARNESS ADAPTER FOR ENGINE COOLING FAN MALFUNCTION. *TT