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Technical Service Bulletin # Mercedes Benz Truck GL 550 S-54_50-256 Date: 121210

Technical Service Bulletin # Mercedes Benz Truck GL 550 S-54_50-256 Date: 121210

Instruments - Reset Trip Computer After ECU Software Update

Date: December 10, 2012

Order No.: S-B-54.50/256

Group: 54

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

Reset Trip Computer After ECU Software Update

2011 Mercedes Benz Truck GL 550 (164.886) V8-5.5L (273.963) Page 125

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.