My 06 is currently under MB Manufactures warrantee and I have been fighting with MB to replace my faulty transmission.
At 28 mph, it skips.
MB tells me there is nothing wrong and this is normal performance!!!!
I am filing complaints with every agency.
I paid an extra $2k for my extended warrantee when I bought my certified used MB and MB will not fix this!!!!
I would NEVER buy this car!!!!!
Mercedes tells everyone they have never heard of the problem.
Next time you hear that, ask them who published over 50 service bulletins about the 7-speed transmission problems with Mercedes-Benz name on them?
Ask them to put it in writing on a Repair Order.
"Nothing is wrong, it operates normal, and is safe to drive."
They won't do it.
There is your answer!