A/T - Harsh Downshifts on Acceleration

Date: March 10, 2005

Order No.: P-B-27.60/53

Supersedes:

Group: 27

SUBJECT:
Model 209.375/475, Model Year 2005
Model 211.070, Model Year 2004-2005
Model 215.375, Model Year 2004-2005
Model 219.375, Model Year 2005
Model 220.170/175, Model Year 2004-2005
Model 230.475, Model Year 2004-2005

Equipped with Automatic Transmission 722.9 (7G-Tronic)

Rough Downshifting When Accelerating

If you receive customer reports in the above model vehicles of rough downshifting (5-4-3) occurring while accelerating, which is reproducible at about 40 MPH in 5th gear and accelerating with approximately 50-70% of accelerator pedal travel, this can be caused by transmission software which is not fully optimized. In such cases, update the transmission software using Star Diagnosis version 1/2005 or later and install software number 000 448 38 10 which is included on the Star Diagnosis DVD to resolve.

Note:
After flashing the transmission software, perform SCN coding.

Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair.





In Case of Warranty