SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Metallic sound on cold sl55 start up?

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Old 02-05-2013, 12:02 PM
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MB SL55
Metallic sound on cold sl55 start up?

When I start up my cold 2005(43,000 mile) SL55 it makes a high pitched metallic sound for about 15 seconds then it goes away and the car runs and performs fine.
The sound reminds me of when a metal fan blade would hit the radiator on old muscle cars. I think the fan in my MB is plastic.
It's in storage now for the winter, but would appreciate any ideas if you've had a similar problem and have a "fix".
Old 02-05-2013, 01:43 PM
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alx
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It is prolly your emissions air injection pump. No worries.

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