fast idle when cold - Mercedes Benz SLK Forum

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#1 Old 03-02-2013
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fast idle when cold

I just bought a 1999 SLK with about 83K miles. When I start it the idle seems too high, it is almost impossible to stop the car when I back out of my driveway.
Is this something that can be easily fixed, or is it set in the computer

Tom Barnhart
Port St Lucie, FL
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#2 Old 03-02-2013
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moving to r170 general discussion

Tom,

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#3 Old 03-07-2013
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Does it idle fast everytime you start the car, or just when the engine is cold?
If it idles fast when cold its the ECU waming up the engine etc.
You can also disconect the battery for 30 minutes & that will reset a few things & may make a diffrence, you will need the code for the radio if you do this.


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