I sometimes get a loud poping noise when I go down my driveway (3 miles per hour reversing and turning down a incline)...Somewhere from the inside of the car...I am guessing it has do do with the car not liking uneven surfaces....I don't know...(I do have a sun roof...will that cause frame weakness?)

Any one else have this problem?

Thanks,
Andy

 

And you're positive that it isn't one of the many "exhaust notes" that the MCS likes to fire out at low speeds?

What exactly does it sound like? (I realize how difficult it is to describe a sound... )

 

I saw another thread that someone modified the sunroof to stop a noise...but I am not sure that it is it. I will try to isolate it....it is pretty loud when it pops. Definately not engine noise..hmmm frustrating....especially in a car that is less than a month old!!

 

Mine pops too. I have had the car for 1-month on the 24th of July and I heard the sound from day 1. It sounds like someone pulled a suction cup off of the passenger side rear window. Does that match your popping?

 

Do you both have the HK sound system. I have noticed that within 10 -15 seconds of starting the car, if the stereo is on, there will be a pop from the rear speakers.

Steve

 

I have an '04 MCS and have heard that loud POP. Sounds like it is in one of the roof supports in the back.. I thought that it was a combination my sway bar (21mm) set to the stiffest setting and turing sharply (at a slow speed) from my driveway slope to the steet (I was rolling forward).

I have since adjusted the sway bar to the middle setting and don't hear the sound that much anyway. I also enjoy the balance of the car in that setting .

At one point I thought the sound was the frame "popping" over the sway bar mounting clamps - kind of a tight fit in there - but I did not see any signs of the metal rubbing on the parts.

Not sure if your situation is with the stock 17mm or larger sway bar... If you have the stock bar there is no adjustment - and my situation is a little different. But you are not alone on hearing that loud POP behind you...

The other thing to try - is do you hear it when you are by yourself or with a passenger in the car? The last time I remeber hearing it was when I had someone riding along...

Hope that helps - a little :smile:

 

Presumably this "popping" sound is not the ABS self-test "clunk" (sometimes coincident with the automatic door lock "clunk"). This usually occurs just above 10 mph (not slowly backing down the driveway).

ABS Self Test

 

I took it the the dealer yesterday and they could not find it....just to spite me it "poped" right as I was rolling out of the dealers driveway....

I am sure that it is not the radio b/c it was not even on. So I don't know....?

Sway bar? My car is stock so it could be the sway bar...but it seems like it is coming from the inside....

ABS clunk....not that

 

That does sound like it but a bit louder...My car was built in June so maybe it is a problem in the newer cars??? I wish I could provoke it everytime so I could show the dealer...

 

Mine does it too when entering or exiting the driveways... it is definately the sunroof! If there is a fix, let me know!

 

Hmm, might not spec the sunroof if this is a widespread issue. No fixes?

 

Prolly one of those things that most do not have that some do, luck of the draw. 03 Mini had sunroof, no noise, and this one doesnt either so far. In perspective its a lone noise, many have lots of other noises from other places too - don't be too surprised if they come up...

 

Points taken. I'll keep an eye out here though. I think I'm just looking for reasons to trim fat from my already thin spec list.

 

Mine does this as well. When I initially complained about this, I thought it had come from the rear right tire area. Service dept. found nothing, though. It does this usually when I am coming in/out of my driveway, but also on sharp turns from time to time. I don't think it's the sunroof, I would be able to hear it closer to my head if that was the case. I'm learning to live with it.

 

.....anyone know what it is?

Thanks for the help!!!!!!!