2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)
Vehicle: All Technical Service Bulletins
A/T - Hard 2-3 Upshift Or Slips, No 3rd Gear/DTC's Stored
Uncomfortable Upshift 2-3
Topic number LI27.60-P-051470
Version 1
Design group 27.60 gearshift, control
Date 03-23-2011
Validity All models with transmission 722.9
Reason for change
Complaint:
Hard shift operation 2-3 upshift or transmission slips (3rd gear may not be reached)
Fault codes P2502, 2505, 0894, 2711 can be entered.
Cause:
K1 piston damaged (adaptation data of shift operation 2-3 on positive/negative end stop, +20/-20 and/or +2000/-2000).
Remedy:
If the complaint can only be reproduced for the upshift from gear 2 to gear 3 or if the 3rd gear cannot be reached, there is a defect in the K1 piston.
1. Replace complete multidisk clutch Ki as per EPC.
2. Then readapt the vehicle.
Symptoms
Works Units
DIAGNOSIS AND REPAIR, MAINTENANCE, PARTS AND LABOR, SHOP OPERATIONS, TECHNICIAN'S REFERENCE, DIAGNOSTIC TROUBLE CODES(dtc), RELAYS AND MODULES, SENSORS AND SWITCHES,ENGINE, COOLING AND EXHAUST, POWERTRAIN MANAGEMENT, TRANSMISSION AND DRIVETRAIN, BRAKES AND TRACTION CONTROL, STARTING AND CHARGING, POWER AND GROUND DISTRIBUTION, STEERING AND SUSPENSION, HEATING AND AIR CONDITIONING, RESTRAINTS AND SAFETY SYSTEMS, ACCESSORIES AND OPTIONAL EQUIPMENT, BODY AND FRAME,CRUSIS CONTROL.