2 questions:Rear wheel-well and vibration.
#1
2 questions:Rear wheel-well and vibration.
Just purchased a C230 sedan. This morning I noticed that the rear wheel wells don't have a plastic membrane, rather they have a lining that is similar to what is in the trunk. This seems very strange. I went over to the Mercedes dealership and checked out some other C-Class models, and they had the same thing. What is the deal here? Why would they use this type of lining for the rear wheel wells?
Also, when I was at a stop light today I heard a very fast vibration noise coming from the rear of the car. It wasn't a loud vibration, but it was very fast(many times a second). When I got out of the car(car was turned off) I heard the noise again. It sounded like it was around the muffler area. Any ideas here?
Also, when I was at a stop light today I heard a very fast vibration noise coming from the rear of the car. It wasn't a loud vibration, but it was very fast(many times a second). When I got out of the car(car was turned off) I heard the noise again. It sounded like it was around the muffler area. Any ideas here?
#3
Senior Member
Rapid ticking or clicking from the exhaust is normal and seems more pronounced when the car is new. It's related to thermal expansion (and contraction after shut-down) of the exhaust system's components.
#7
Senior Member
Join Date: Mar 2003
Location: Stamford, CT
Posts: 350
Likes: 0
Received 0 Likes
on
0 Posts
2003 C230
soma, I get a thump-thump-thump noise from the rear also
1st time at the dealer they couldn't "reproduce" it. I am taking it in again and this time I am going for a ride with a tech in the car to demostrate the noise. It only happens on hot days when I push the car a bit and then stop at a light. It must be some temperature related thing like expansion/contraction of something. Can barely hear it from outside the car but from inside it sounds like a 'thump-thump' noise.
CZ
CZ
Trending Topics
#8
CZ, let me know what you find out. I'm assuming yours is a rapid "thump-thump" sound(many times a second). When it happens it's not loud, but it is noticeable. Like I said, when I got out of the car I could hear it as well. It sounded like it was coming from underneath the car, just behind the rear wheels.
When I was driving today I didn't hear anything, but then again I also had the music up and really wasn't "trying" to find the problem. Tomorrow I will take it out and see if I can "reproduce" it.
When I was driving today I didn't hear anything, but then again I also had the music up and really wasn't "trying" to find the problem. Tomorrow I will take it out and see if I can "reproduce" it.