CLK500 Cold Start Idle Speed Adjust?
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CLK500 Cold Start Idle Speed Adjust?
Can the cold start idle speed be lowered on the 500? Awful lot of noise (whining) from the engine compartment at 1200 rpm until it slows. Only lasts maybe 20 seconds, but it sounds cheesy. 
Also, what's your idle rpm in gear? I'm 700+, which makes it creep right along.
Also, what's your idle rpm in gear? I'm 700+, which makes it creep right along.
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Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
The high idle & excess air pump are all for emissions & fast Cat warm up. Nothing you can do about it. It is programmed into the ECU.
MBWorld Fanatic!
Joined: Jun 2009
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From: Witness Protection Program
06 CLK350 -SOLD! 2010 Cadillac SRX Premium Turbo
The ML430 I owned was crazy loud for the first 30 seconds or so until the pump cycled through. In gear idle about the same, maybe a little less.
