SL55/63/65/R230 AMG: 09 SLK55 Transmission Shifting Slow
I have an 09 slk55 with the following modifications. Headers, Full exhaust, no front cats, Upgrade Panel Filters, ECU Tune. making 250rwrw. The car has run 12.4 @115mph but the last few outings i have had an issue with the trans. times have dropped to high 12's - 13s passes.
The issue i am experiencing is that the trans is shifting slow between 1-2 and 2-3. Dont know why this is now a problem for my car.
is there anything i can do or is there a fix? why is this happening.
create a trans tune for it being an older box that cant simply tune the gearbox
any ideas would be great
Tony


