Fuel smell in oil w205 c63s - MBWorld.org Forums

May 18, 2023 | 02:10 AM

neerredd1

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w205 c63s

Fuel smell in oil w205 c63s

Hello everyone

I have a 2016 c63s

I recently went to top off my oil today and noticed a weird smell! Smelled nail polish like is this fuel in the oil ? I have been told in direct injection cars this is normal. But I’m just a bit worried. Never had this smell before. Car runs fine. Had the injectors checked by an experienced Mercedes tech and he said that all the pressures on each injector were good when using his logging tool. Also I don’t drive short distances. Meaning the oil is always warmed up

May 18, 2023 | 06:22 AM

Belong

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W205 C63S T

Just do oil change every 5000 km... its peanuts money.. and especially now.... just get it done...

May 18, 2023 | 11:54 AM

neerredd1

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w205 c63s

Quote:

Originally Posted by Belong

Just do oil change every 5000 km... its peanuts money.. and especially now.... just get it done...

I do it every 3,000 miles. Just did oil change 1,000 miles ago

May 18, 2023 | 12:25 PM

chassis

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From: unbegrenzt

2017 GLE350 4MATIC

Quote:

Originally Posted by neerredd1

Keep an eye (nose) on it. If you can smell fuel outside the engine with the oil cap closed there is probably a leak in the fuel system. If you smell gas in the crankcase it may or may not be normal and you need to look for other symptoms.

Blowby is normal and can produce fuel smell in the crankcase.

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