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Service bulletins for the 2004 Mercedes-Benz C-Class

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.

10 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
PB-61-10-072009-03-06. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:MOUNTING; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING. MERCEDES: REPLACING THE LONGITUDINAL MEMBER (LEFT AND RIGHT) BELOW THE MAIN FLOOR PANEL ON ALL MY 204 UP TO 12/31/07. (C300, C350, C300 4-MATIC, C63 AME). *PE
20060200082006-05-03. Service bulletin. POWER TRAIN. INSPECT TRANSMISSION PILOT BUSHING AT ELECTROCHYDRAULIC UNIT AND REPLACE IF NECESSARY. THE TRANSMISSION PILOT BUSHING MAY HAVE BEEN INSTALLED ON THE CONTROL UNITS WITH NON-TEMPERED SEALING RINGS WHICH MAY CAUSE A SMALL LEAK TO OCCUR. *TT UPDATED 04-11-07. *KB
20051000082006-01-10. Service bulletin. STRUCTURE:BODY:DOOR. INSPECT BOOT ON BOTH FRONT DOORS. THE BOOT AT THE DOOR CONNECTING TO THE A PILLAR MAY NOT HAVE BEEN CLIPPED CORRECTLY LEADING TO INSUFFICIENT SEALING. *NM
20051000042005-11-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE PVC SEAM SEAL ON THE TRANSMISSION SUPPORT BRACKET MAY NOT HAVE BEEN PROPERLY APPLIED. INSPECT TRANSMISSION SUPPORT SEAM SEAL, RESEAL IF NECESSARY. *TT
20050600172005-09-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. COOLANT HOSE AT THE BOTTOM RIGHT OF THE RADIATOR MUST BE CHECKED TO DETERMINE WHETHER THE TWO CATCHES OF THE COOLANT HOSE ARE LATCHED CORRECTLY. INSPECT LATCHING OF LOWER RADIATOR HOSE, REPLACE RADIATOR IF NECESSARY. *TT
8270314B2005-05-04. Service bulletin. EQUIPMENT. HIGH-PITCHED WHINING NOISE HEARD ON TELEPHONE/VCS/TELE AID CALLS. *TT
4246382004-05-19. Service bulletin. SERVICE BRAKES, HYDRAULIC. BLEED BRAKE SYSTEM AND CHECK BRAKE SYSTEM FOR AIR ON THE SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM USING STAR DIAGNOSIS. ALSO INCLUDES MERCEDES-BENZ 211 MODEL MY2004. *TT
0101042004-03-12. Service bulletin. SEAT BELTS:FRONT:BUCKLE ASSEMBLY. VOLUNTARY RECALL CAMPAIGN 2003 SEAT BELT BUCKLE. *JB
0101042004-03-12. Service bulletin. SEAT BELTS:FRONT:BUCKLE ASSEMBLY. VOLUNTARY RECALL CAMPAIGN 2003 SEAT BELT BUCKLE. *JB
0101042004-03-11. Service bulletin. SEAT BELTS:FRONT:BUCKLE ASSEMBLY. VOLUNTARY RECALL CAMPAIGN 2003 SEAT BELT BUCKLE. *JB

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.