Reset Trip Computer After Ecu Software Update (54.50/256)

Publication date: 2012-12-10
Reference number: 54.50/256

RESET TRIP COMPUTER AFTER ECU SOFTWARE UPDATE

TECHNICAL SERVICE BULLETIN

Reference Number(s): S-B-54.50/256, Date of Issue: December 10, 2012

MERCEDES-BENZ:	MY-All, Models All with Code 801 MY2011, Code 802 MY2012, Code 803 MY2013
GROUP:	54 - Electrical system, equipment and instruments

SUBJECT

MY-All, Models All with Code 801 MY2011, Code 802 MY2012, Code 803 MY2013

Reset Trip Computer After ECU Software Update

Since MY2011 vehicles no longer calculate the consumption figures or trip data in the instrument cluster, rather they are calculated in the engine control unit (ECU).

Consequently, every ECU software update requires synchronization of the trip data in the ECU and in the instrument cluster by resetting the trip computer. After updating the ECU software, reset the trip computer in the "After start" and "After reset" menus by using the buttons on the steering wheel. Skipping this step will display incorrect fuel consumption data.