suggashane410

only when i first start it in the winter for about 3 mins the tranny likes to slip and rev high in 1st gear then switch over at odd rpms...any one else? but after the car warms up its fine.. do i need a change in fluid or to add more fluid?

MilitaryBenz

let it warm up it happens with these clks man, i usually let mine warm up for like 5-8 mins then its good

Japp

my 430 was doing this, went to the shop and it was low on fluid, cleared the codes and corrected fluid level and it was cured.

rjlawlor646

my car also does this when its cold. Once it warms up, its good tho

DropTop208

The tranny will hold in first gear longer when the weather is cold so that the cats could warm up faster. As far as slipping, it may be low on oil. Thats the first thing I would check.

chem1441

+1

Theres a difference between transmission slip, and what you are describing. Most modern cars do hold first gear a lot longer when really cold in order to warm the emission systems up as quickly as possible. Once warm though the transmission should shift smoothly and consistently at lower RPM's.

That being said, if you have never replaced your transmission fluid, and you have 60k+ miles on it, you should definately consider replacing it. And remember, a transmission drain and fill is NOT the same as a transmission flush. Make sure you know what you are paying for!!!

Mika83

Is a tranny fluid change recommended on the 2000+ models as well? I thought that this gearbox was maintenance free and sealed?

My car has travelled 90.000 miles and i doubt anyone has looked at the tranny if it's stated in the manual that it doesn't need to be looked after.

Dan Wang

MB says lifetime fluids, but I would recommend changing it every 35k miles.

doubleblack430

So dis is normal

lowphat

In the service department's handbook, "Maintenance Free" transmissions filled with "lifetime fluid" are more fully described in the chapter called "Job Security & Retirement Planning"

A1EK

i've got 150K miles now with the same tranny fluid and it seems fine, but then I would not know the differenence until I changed it and Im sure its night and day !.

As for the higher revs when cold to warm the cats, if you find this inconvenient and if you have tiptronic then just bump up the gears manualy for 5mins thats what I do.