Why I'm hearing a noise under hood after I parked no keys in the ignition

What is your question?

I'm hearing this noise twice but today was the first time I herd it in awhile.. My rclass has check engine lite on for mass sensor...how can my car make a rumbling noise with no key in the ignition..

Bigleto in Bronx NY

Jun 5, 2014

Popular Answer

What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 2009 Mercedes-Benz R350. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

Why I'm hearing a noise under hood after I parked no keys in the ignition

What is your question?

I'm hearing this noise twice but today was the first time I herd it in awhile.. My rclass has check engine lite on for mass sensor...how can my car make a rumbling noise with no key in the ignition..

Bigleto in Bronx NY

Jun 5, 2014

2 Replies

Popular Answer

melaniesmauldinon Mar 25, 2015

It is the air suspension

LyloBeddoon Dec 21, 2015

There's a cat trapped under your hood! Get it out of there quick!

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Popular Answer

What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 2009 Mercedes-Benz R350. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.