Clunking sound from my E34

[myFive]

Hi guys, I was directed from autoworld.com.my by fabianyee....Guys, Got a bit of an issue on my E34: There is a clunking sound whenever I go over uneven patches or bumpy roads from the LEFT REAR of my car. At first I thought it was the shocks, but after checking it...no probs there. My mechanic said it could be due to worn exhaust mountings (which I suspected) which would cause the exhaust to hit against the innner side of the bumper over uneven roads. I just changed the mountings on Sunday 20/3/2005 but the sound is still there! Any ideas on this? Thanks 5

 

[bmwky]

try the rear shock mounting. very common item to fail and give the symptoms as described.

 

[naza2]

check your rear brake pads. does it make the sound during braking? mine had the same problem. cause: weak brake pad return springs.

 

[myFive]

Sounds does not happen when braking, only over uneven and bumpy roads while driving normally. I will check the pads nonetheless and also the mountings for the rear shocks.

Thanks a bunch guys. Will update you with results.

5

 

[pussy]

okay, Myfive..

for your car there's a lot of posibilities of the noise coming from the front, mid or rear.. a very experinced mechanic should be able to sort it out.. for the e34, sometimes the sound could be related elsewhere.. i had a share of guess work for my car..

i can give you a posibility of a few items, but it might not be right.
my suggesttion bring it to our tt and we can tell you what is it wrong..

posible list at the front:
1. worn ball joints
2. worn centre link
3. worn side steering links
4. broken asorber mounts
5. asorber shaft bend/ kaput
6. lower arm bush kaput
7. upper arm kaput
8. engine mounting kaput
9. gearbox mounting kaput
10. steering box kaput/ inside ball koyak !
11. etc

at the rear:
1. arm bushes koyak
2. rear sub frame bush worn
3. ptiman arms worn
4. asorber koyak
5. asorber top mount worn
6. rear axle mount koyak
7. etc..

regards.

 

[bazet]

My problem is exactly like yours. I changed my rear absorber and suddenly after oversteereed at one tight corner..then ...the nighmare...the clunking sound emerged.

I changed top absorber mounting and the sound still there...paid rm200 just for rear left top absorber mounting.....

if you found solution for that, please update it here.

 

[myFive]

I guess this problem is more common than I thought.

When is the next TT? I would like for you guys to look over the car, definitely beats me and my wallet trying to figure it out.

Thanks
5

 

[naza2]

somehow i still think it's the brake pads. we'll see. i'm doing a little experiment this weekend if time permits.

 

[geodesy]

Tumpang thread...

Me too just changed my rear absorbers but the ride is still quite low... what could be the problem? Coil?

Cheers,
Geo

 

[naza2]

Originally posted by geodesy@Mar 23 2005, 09:15 PM
Tumpang thread...

Me too just changed my rear absorbers but the ride is still quite low... what could be the problem? Coil?

Cheers,
Geo

heellooooooooo :dunno:

 

[myFive]

Naza2,

What kind of experiment have you got in mind? This sounds interesting....

5

 

[naza2]

one easy way to eliminate my theory: remove the rear caliper and drive over bumps

 

[c-square]

experienced the same problem on my e36 sometime back. sounded like the exhaust hitting the chassis when going onto uneven roads. I think the mech replaced some arm bushes in my case and the irritating clunking sound is gone.

 

[myFive]

naza2,
Thanks for the idea, will give it a try over the weekend as well

c-square,
Do you remember which arm bushes specifically?

Thanks

5

 

[c-square]

Originally posted by myFive@Mar 24 2005, 12:43 AM
naza2,
Thanks for the idea, will give it a try over the weekend as well

c-square,
Do you remember which arm bushes specifically?

Thanks

5

myFive.... sorry dude. Wasn't there when the mech changed it. Just ask your mech to check all of them anyway

 

[naza2]

myFive. becareful tho. i don't guarantee any safety issues here.

to remove the caliper is one easy job but you have to seal/plug your hydraulic system. if not u got no stopping ability at all. just my 0.02. it might not be a good idea at all. that's why i said experiment. i hope you are aware of this.

 

[geodesy]

Originally posted by naza2+Mar 23 2005, 08:07 PM-->QUOTE (naza2 @ Mar 23 2005, 08:07 PM)

 

[myFive]

naza2,

Not too worry, all this will be carried out under the supervision of my trusted mechanic. I would also expect him to be driving the car under those conditions...

 

[bazet]

I think I know what cause my clunking sound. It's exhaust support metal thing that went loose. Try 'goyang' your muffler and check whether the clunking sound is from there or not ?

 

[naza2]

mine's not. even with heavy shaking, the sound is still there. i changed my whole exhaust 2 weeks ago and this sound is still here. so its not the exhaust in my case.