M-Class (W166) Produced 2012-2015

ML 350 whining noise at cold start

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Old 02-28-2024 | 04:31 AM
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Locs's Avatar
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2014 MB ML350 4MATIC
ML 350 whining noise at cold start

Is this normal for a few seconds
Old 02-28-2024 | 11:02 PM
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From: In the Shadow of the Tetons
2013 ML350 Bluetec
Depends on how close to seizing up your idler pulley is.
Old 02-29-2024 | 05:57 AM
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From: Ottawa, Ontario
2013 ML350 Bluetec, 1966 Ford Mustang Convertible (sold)
If you have a diesel and you did the AEM (Bluetec recall), go to the dealership immediately. If it's your timing chain, they'll replace it free as part of the warranty.

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