WenmarOpen by Wenmar Pro

Service bulletin 012012

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 id10000627
Published by NHTSA2003-03-26
Manufacturer's number012012
Manufacturer's date2007-11-02
Replaces012012A
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

ENGINE VIBRATING, RPM FLUCTUATIONS AT IDLE OR POOR ACCELERATOR RESPONSE WITH CODES P2020, P0172, P2046, P201C OR P201A IN THE ENGINE CONTROL UNIT. MODEL C230CL. *TT UPDATED 1/30/08. *NJ

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

Trouble codes named

P0172, P201A, P201C, P2020, P2046

Vehicles listed
MERCEDES BENZ 203

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