SL 500 (230.475) V8-5.0L (113.963) (2004)
Control Module: All Technical Service Bulletins
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