A/T - 2-3 Upshift Slip During Initial Cold Acceleration

2-3 upshift slips slightly one time

Topic number LI27.00-P-048552

Version 5

Design group 27.00 General

Date 09-17-2012

Validity Transmission 722.9 with engines 273, 272 and 642

Reason for change Model designations with engine 642 and engine 272 for which there is a remedy have been added under Validity

Complaint:
After a cold start, slight slippage may occur in the 2-3 shift when the vehicle moves off for the first time.

Cause:
A full basic charge for the K1 piston cannot be guaranteed with a cold start. This means that the plate contact pressure must still be built up, which can lead to a single brief slip of the gearshift.

Remedy:
Vehicles with engine 272, engine 273 and engine 642 in combination with the electrohydraulic controller unit A220 270 23 06 or A220 270 24 06 -> Flash transmission control unit.

Important:
Observe the list in the attachment for vehicles with engine 272 and engine 642 because this software is only available for these model designations.





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Overview for GI27.00-P-046507