Thread: Please help! Turbo whine on 300D
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  #14  
Old 02-03-2012, 08:38 AM
my123ca my123ca is offline
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Join Date: Mar 2005
Location: SoCal
Posts: 661
What year is the car? If its a newer 300D, it could be the ARV. Try pulling out the vacuum hose to the ARV and see if the the whistle goes away.
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'85 300D Cal 280,000 miles
'14 GLK 350 60000 miles
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