Burning smell from exhaust
Thread Starter
Junior Member
Joined: Dec 2020
Posts: 15
Likes: 1
18 C43 Coupe
Burning smell from exhaust
Hey guys, I finally purchased a new 2018 C43 AMG. It's a 2018 with about 33k kms. One thing I did notice after a drive today was that there was a burning smell coming out of the exhaust. I can only smell it when im at the back of the car. I did notice a decent amount of carbon build-up on the exhaust tips. Is this normal for the C43? I was driving in Sport+ mode but I didn't push the car very hard.
Thread Starter
Junior Member
Joined: Dec 2020
Posts: 15
Likes: 1
18 C43 Coupe
It does somewhat smell like oil burning. It almost smells like crayons. I read another post about it and apparently it was normal for that to happen during engine break-in, but this is wayyy after engine break-in.
Super Member
Joined: Oct 2019
Posts: 841
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C43
Are you tuned or running a JB4? Are you running catless downpipes?
Thread Starter
Junior Member
Joined: Dec 2020
Posts: 15
Likes: 1
18 C43 Coupe
Will do! The car is bone stock. The car was placed in a garage and not driven for about a month, if that contributes to anything. It still has a year of warranty left, if the problem presists, I might just drop it off to get them to check it out. I'll try driving it in different modes and see if the smell is there next time too.
MBWorld Fanatic!
Joined: Mar 2017
Posts: 1,026
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From: Omaha, NE
'16 AMG GTS, '21 AMG GLE53
Rolled 56,500 miles this morning on my way in to the office. The melting crayon smell remains, but is almost exclusively present in warmer months. Unless you're smelling burning oil or seeing white/blue smoke, nothing to be concerned about.
