Auto gearbox lumpy when cold
2014 W204 - when cold the car changes up through the gears very smooth but when slowing down and therefore changing down its very harsh - its quite a lurch as it changes. As soon as its warmed up (only 4 or 5 miles) then no problem at all and as smooth as expected.
Anybody had similar and found a solution ?
I should add the car has only covered 42000 miles and the gearbox was serviced earlier this year.




My 2013 C250 (93,000 miles - 149,000 km) started acting the same way about 30,000 miles ago. It would make a really harsh downshift at the stop at the end of my street. I find that if I let it sit idling for 2 minutes it drives off smoothly and shifts up and down without issue. Worth a try, it’s free.



