transmision
MBWorld Fanatic!
Joined: Feb 2003
Posts: 5,622
Likes: 1
From: Los Angeles, Ca
Sean's Sister--
Originally Posted by traianusa
I have a '95 E420. It feals that the transmision is shifting rough when the engine and the transmision are cold. After that it's fine. What should I do to fix the problem? Thank you
Super Member
Joined: Nov 2004
Posts: 588
Likes: 1
'98 E320 4Matic, '85 380SL
The transmission delays shifting when it's cold to help it warm up more quickly. Because the shifts are delayed, your engine will rev higher. Shifts at high RPM (but not much throttle) are a bit rougher.
It's best to let your car idle for about 30 seconds after you start it until the RPM sits down below 1000 RPM. Then just drive very gently until it's fully warmed up. The problem with letting your car warm up idling is that your engine runs cold for a very long time. It's better for your engine to warm up more quickly by driving gently than to warm up slowly at idle. If in doubt, read the manual...
It's best to let your car idle for about 30 seconds after you start it until the RPM sits down below 1000 RPM. Then just drive very gently until it's fully warmed up. The problem with letting your car warm up idling is that your engine runs cold for a very long time. It's better for your engine to warm up more quickly by driving gently than to warm up slowly at idle. If in doubt, read the manual...
Thread Starter
Newbie
Joined: Sep 2005
Posts: 5
Likes: 0
Originally Posted by lexrex
The transmission delays shifting when it's cold to help it warm up more quickly. Because the shifts are delayed, your engine will rev higher. Shifts at high RPM (but not much throttle) are a bit rougher.
It's best to let your car idle for about 30 seconds after you start it until the RPM sits down below 1000 RPM. Then just drive very gently until it's fully warmed up. The problem with letting your car warm up idling is that your engine runs cold for a very long time. It's better for your engine to warm up more quickly by driving gently than to warm up slowly at idle. If in doubt, read the manual...
It's best to let your car idle for about 30 seconds after you start it until the RPM sits down below 1000 RPM. Then just drive very gently until it's fully warmed up. The problem with letting your car warm up idling is that your engine runs cold for a very long time. It's better for your engine to warm up more quickly by driving gently than to warm up slowly at idle. If in doubt, read the manual...
That might be your answer. 
Junior Member
Joined: Sep 2005
Posts: 50
Likes: 0
From: Midwest
97 E Klasse 420 Sport/ 90 Honda Accord EX/97 Impreza Coupe
i get that also but ppl who drive the car don't listen i.e. my dad drives the car on the weekend he jus starts up and drives it not letting it warm up i always yell at him for that.
