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cold start whine

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Old Jul 26, 2014 | 08:40 AM
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cruising c230's Avatar
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c230
cold start whine

I have a 2006 c230 sport. Every morning when I cold start the car I hear a faint whine till the rpm's drop below 1000. Its not that loud, and only on cold start. Just wondering if this is normal. The car has almost 100,000 miles on it, but has just been to the dealership recently to get work done on it and they didnt seem to notice anything, and Im wondering if Im just now noticing this noise because im being **** now.
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Old Jul 26, 2014 | 07:03 PM
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C320 wagon
Originally Posted by cruising c230
I have a 2006 c230 sport. Every morning when I cold start the car I hear a faint whine till the rpm's drop below 1000. Its not that loud, and only on cold start. Just wondering if this is normal. The car has almost 100,000 miles on it, but has just been to the dealership recently to get work done on it and they didnt seem to notice anything, and Im wondering if Im just now noticing this noise because im being **** now.

sounds like its the air pump. It kick on when the motor is cold for about 20 seconds
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Old Jul 26, 2014 | 08:25 PM
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Glyn M Ruck's Avatar
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Normal ~ Excess air fan or transmission pump.
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