Mercedes Benz

Instruments - Tachometer Fluctuates By Approx. 100rpm Instrument cluster: Tachometer fluctuates Topic number LI54.30-P-049068 Mercedes-Benz A220 2020 Page 387 Version 1 Design group 54.30 Instrument cluster/display instruments/warning devices Date 03-11-2010 Validity Model 204 with comfort multifunction steering wheel (code 442) up to VIN ...A 324554 / ...F 383728 / ...R 091855 Model 207 up to VIN ...F 014219 Model 212 up to VIN ...A 079696 Reason for change Reason for block Complaint: Tachometer in instrument cluster (A1) fluctuates by approx. 100 rpm. Note: The complaint is observable primarily when idling. Cause: Dirt in the tachometer stepper motor in the instrument cluster (A1) Remedy: Check the engine speed on cold start and in warm-up with Xentry Diagnostics under Motor electronics (ME) control unit -> Actual values -> Combustion engine. If the engine speed in the actual values is constant and the tachometer in the instrument cluster (A1) fluctuates, remove/install/repl...

******************************************************************** 2010 Mercedes Benz E 63 AMG Sedan (212.077) V8-6.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 1 Vehicle: All Technical Service Bulletins Instruments - Tachometer Fluctuates By Approx. 100rpm Instrument cluster: Tachometer fluctuates Topic number LI54.30-P-049068 Version 1 Design group 54.30 Instrument cluster/display instruments/warning devices Date 03-11-2010 Validity Model 204 with comfort multifunction steering wheel (code 442) up to VIN ...A 324554 / ...F 383728 / ...R 091855 Model 207 up to VIN ...F 014219 Model 212 up to VIN ...A 079696 Reason for change Reason for block Complaint: Tachometer in instrument cluster (A1) fluctuates by approx. 100 rpm. Note: The complaint is observable primarily when idling. Cause: Dirt in the tachometer stepper motor in the instrument cluster (A1) Remedy: Check the engine speed on cold start and in warm-up with Xentry Diagnostics under Moto...