Supercharger sound when full trottle
Thread Starter
Junior Member
Joined: Jul 2021
Posts: 20
Likes: 1
C63s Coupe
Supercharger sound when full trottle
So i have this issue on my C63s Coupé.
A whining noise (almost like a supercharger sound) that comes only during hard accelerations and are most noticeable from 1st,2nd and 3rd gear. I can also hear some sort of whine or like something is rubbing (like a belt or something) if i drive in a corner a little bit harder.
confirmed by a few people that have driven these that this is not normal.
Suggestions?
A whining noise (almost like a supercharger sound) that comes only during hard accelerations and are most noticeable from 1st,2nd and 3rd gear. I can also hear some sort of whine or like something is rubbing (like a belt or something) if i drive in a corner a little bit harder.
confirmed by a few people that have driven these that this is not normal.
Suggestions?
Junior Member
Joined: Jan 2019
Posts: 42
Likes: 7
C63
https://mbworld.org/forums/c63-c63s-...ml#post8354923
Have a read and look at the links in the thread, think quite a few of us are experiencing similar
Have a read and look at the links in the thread, think quite a few of us are experiencing similar
Junior Member
Joined: Jan 2019
Posts: 42
Likes: 7
C63
No sound clip sorry, I’ve convinced myself it’s the diverter valves.
Tried to explain the situation at the dealership but extremely difficult to replicate so ultimately gave up, no loss of power so I’ve learnt to live with this and ‘noises’
Tried to explain the situation at the dealership but extremely difficult to replicate so ultimately gave up, no loss of power so I’ve learnt to live with this and ‘noises’
Thread Starter
Junior Member
Joined: Jul 2021
Posts: 20
Likes: 1
C63s Coupe
hello!
the problem for me got solved.
mechanic told me that previous service they put the plug a little wrong so there was a tiny hole that leaked tiny amount of oil and maybe was the issue to causing air or something to get inside.
they droppet trans oil pan and searched trough for any damage, no damage, so did a full transmission oil service and the sound was gone. It took us a few attempts to try to find the issue though
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Thread Starter
Junior Member
Joined: Jul 2021
Posts: 20
Likes: 1
C63s Coupe
they put mics around turbos,engine, intake and sat with headphones listening when i drove the car.
when i floored it / cornered hard, the sound came. They Did not find anything wrong on those test but then connected it to the trans where they heard that sound more and so it began.
Thread Starter
Junior Member
Joined: Jul 2021
Posts: 20
Likes: 1
C63s Coupe
It sounded like it came from the engine bay/ slightly under me.
they put mics around turbos,engine, intake and sat with headphones listening when i drove the car.
when i floored it / cornered hard, the sound came. They Did not find anything wrong on those test but then connected it to the trans where they heard that sound more and so it began.
they put mics around turbos,engine, intake and sat with headphones listening when i drove the car.
when i floored it / cornered hard, the sound came. They Did not find anything wrong on those test but then connected it to the trans where they heard that sound more and so it began.
