Transmission software upgrade,WOW!

Thanks for the info you had - I'll try to get some interest from my dealer. I have the exactly the same issue. I'll let you all know what happened!
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My average around where I live is 36mpg, so i'll know more after a week or so if the economy is better.
On a side note. I think that these seats are VERY prone to creaking. In almost every w204 I have been in (my 2 and many loaners) almost all the seats squeak like the springs are bad. It is very embarrassing and non-luxury, sounds like I'm driving a 15 year old hoopty.
Each time I complain they "lube the springs" and the problem gets better (not as noticeable) but it still persists and maybe a month later the problem is back at full-blown. Does anyone know if there is a permanent fix for this?
Also, a similar issue is with my sun-roof. After the car is left in heat or sunlight, the sunroof would make a terrible noise when opening it (especially tilting) they would lubricate the tracks and it wouldn't sound nearly as bad, but it still makes a sound. Any permanent fix for this either?
On a side note. I think that these seats are VERY prone to creaking. In almost every w204 I have been in (my 2 and many loaners) almost all the seats squeak like the springs are bad. It is very embarrassing and non-luxury, sounds like I'm driving a 15 year old hoopty.
Each time I complain they "lube the springs" and the problem gets better (not as noticeable) but it still persists and maybe a month later the problem is back at full-blown. Does anyone know if there is a permanent fix for this?
Also, a similar issue is with my sun-roof. After the car is left in heat or sunlight, the sunroof would make a terrible noise when opening it (especially tilting) they would lubricate the tracks and it wouldn't sound nearly as bad, but it still makes a sound. Any permanent fix for this either?








