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Service bulletin SB-01-20-24A

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 id10030289
Published by NHTSA2009-09-18
Manufacturer's numberSB-01-20-24A
Manufacturer's date2009-05-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

MERCEDES: WHISTLING SOUND FROM ENGINE COMPARTMENT. THE SOUND CAN ALSO BE HEARD FOR UP TO SEVERAL SECONDS AFTER THE ENGINE IS SWITCHED OFF. MODELS ML63, C63, CLK63 (CABRIOLET), E63, E63S, CL63, CLS63, S63, SL63 AND R63. NO MODEL YEARS LISTED. *PE

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 C632007
MERCEDES BENZ CL632009
MERCEDES BENZ ML632009
MERCEDES BENZ R632009
MERCEDES BENZ S632009
MERCEDES BENZ SL63 AMG2009
MERCEDES-BENZ AMG CLS632009
MERCEDES-BENZ AMG E632009

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