problem is not warm up my car
Thread Starter
Junior Member
Joined: Mar 2003
Posts: 72
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From: Monterey Park, CA
c240
problem is not warm up my car
every morning when i start my car, the engine seems to run very hard. and when i drive it without warming it. it will have like 2k rev when i am driving 10mph. but the problem is gone if i warm up the car. is this normal for c240?
MBWorld Fanatic!
Joined: Apr 2003
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From: Ohio
At least with our c230k, the manual states that the engine'll rev a bit higher at first just to warm up the catalytic converter. We get about 3 blocks and then it'll go ahead and upshift normally. hth
MBWorld Fanatic!
Joined: Nov 2001
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From: Toronto, Ontario, Canada
you dont need to warm up the car by letting it idle.. in fact, it takes longer to warm up the car that way.
you should start the car, let it sit for about 10 seconds (so that the revs fall to just under 1000) and then drive away (take it easy though)
...the 2k at 10mph part.. i'm pretty sure that's because the transmission didnt upshift.
I'm no techie, but there is two reasons for that: 1) engine is not warm therefore running at a higher rev to warm it up and/or 2) tranny isnt warm therefore not shifting properly/delaying upshift to warm up.
you should start the car, let it sit for about 10 seconds (so that the revs fall to just under 1000) and then drive away (take it easy though)
...the 2k at 10mph part.. i'm pretty sure that's because the transmission didnt upshift.
I'm no techie, but there is two reasons for that: 1) engine is not warm therefore running at a higher rev to warm it up and/or 2) tranny isnt warm therefore not shifting properly/delaying upshift to warm up.
