I have a 2001 320 4matic with 14,689 miles on it (recently purchased) and
when I take my foot off the gas and coast for a few seconds and then apply
the gas I get a slight clunk in the back. And, when rolling to a stop, as
the car downshifts into 1st gear I ocassionally hear a light clunk as well.
Took it into Mercedes today and they told me that the noise is normal on the
4matics. Does that sound like a snow job or legitimate information?? I've
started an informal poll (spoke to a 320 4matic owner at a gas station today
and will ask others I encounter on the street) and would like to hear from
the folks on the forum. For all the engineering prowess that has made
Mercedes a premier brand I find it hard to believe that this annoying clunk
would be a "standard feature" on their cars.
Sounds more like slack in the drive line to me. Perhaps a driveline
carrier, or u-joint or rubber ujoint type thingie... Could also be
something slack in the rear end?
I don't know about 4-matics but this doesn't sound "normal" or
acceptable to me.
Is the noise from the right side around the gas filler? If so, there is a
plastic canister for something (gas fume?) in the tire fender. Mine got
off the fastening clips and made a clunking (thumping) noise. After
removing the tire fender fasteners you will see it between the rear tire and
the rear bumper.
I have 2002 E430 reg. automatic so yours might be a different problem.
- Mo -
I had the same vehicle with the same noise. The dealer worked on it many
times change several parts in the drive train. They eventually had a MB
rep look at the car and claim it "normal". We both drove another 4matic
and it also had the noise. I ended up selling the car because I don't
need to hear that noise everyday from a "luxury" car.
I dropped the car off at Mercedes of Greenwich and I got a call from them in
the afternoon telling me that the clunking noise was because one of the
transmission brackets was broken and the tranny was shifting a bit when gas
was appplied or taken off. They noticed that there was a few drops of oil
leaking from the trans-axle case so they were going to replace the seal, the
air flow for the air conditioner was "Ok" not quite what is should be and
since it is a known problem they were going to replace the air conditioning
regulator, the squeaking when the steering wheel is turned is a known issue
and there is a fix for it, there was a squeak every so often in the cabin -
seemed to happen when the car was leaning in a turn - yep - known problem
the driver side seat frame is being replaced. Software is being updated,
oil change, wipers... and a full service update - at no cost. They asked me
if they could have the car for 2 days to make sure they got everything -
hell yes, take 3 days if you want. I'm smiling on this side of the
Your smiling but your car is in the shop. Instead of more dealers like this,
we need less cars like that. I was seriously looking at a e320 this week but
just cant do it. To many horror stories.
Someone tell me about how great their newer merc is. I need some
reassurance. I actually went to look at lexus, infinity and Volvo of all
places. I dont know what the heck I want now. (sub 35k 2003 or newer
smallish sedan is all I know now)
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