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Service bulletin C1A-081101

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 id10042611
Published by NHTSA2011-12-29
Manufacturer's numberC1A-081101
Manufacturer's date2008-11-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

NHTSA's summary

MERCEDES: ON CERTAIN S AND CL CLASS VEHICLES, THE RESTRICTOR ORIFICE ON THE TRANSMISSION COOLER LINE HAD BEEN INSTALLED INCORRECTLY. *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

Transmission and driveline, Automatic transmission

Vehicles listed
MERCEDES BENZ CL2009
MERCEDES BENZ SL CLASS2009

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
LI-27-60-P0517732011-07-13. Service bulletin. MERCEDES-BENZ: THERE IS A TRANSMISSION TROUBLE CODE STORED. IT IS A DIAGNOSTIC PROBLEM WITH THE WET START-UP CLUTCH. *RM
LI-27-60-P0492702011-06-30. Service bulletin. MERCEDES-BENZ: THE AUTO-TRANSMISSION SWITCHES TO LIMP HOME MODE OR HAS NO POWER. THERE ARE MULTIPLE POSSIBLE FAULT CODES. A PISTON MAY BE DAMAGED. *RM