Thread: Air suspension woes ....

The behaviour suggests a crack on a fold in the airspring that only opens at a particular height. However I would verify that its not caused by a faulty height sensor which requires that the air suspension ecu is disabled, most easily done by removing all fuses related to air suspension, then going for a drive to see if the suspension still drops. A cracked airline would most likely always leak so therefore unlikely to be the cause. I suspect a faulty valve block would always leak so probably not the cause either.

I was suprised that the rear airspings in my D4 had significant internal cracking after only 95K kms and only 3 years old.

I'm thinking the same as graham, the other springs wouldn't stay up if it was a compressor or computer issue. As a fix I think it's cheaper to replace a strut/bag assembly than just the bag?

just replaced a pair of front struts on an L322 for cracking and leaking. exact same symptoms and no faults recorded. Best thing to do is look up inside the strut at the bag as Graeme says where they fold over. Spray some soapy water and run the vehicle with doors etc closed. SHOULD see the leak. This particular vehicle had the LHF go first, and the RHF was close behind.


JC

Mine was the same. I could drive it around and occasionally it would drop the RH front bag. Got to the stage it wouldn't stay up. Slapped new struts in, all good - it is a straight forward job.

How many KM has it got on it? They seem to go about 160 to 180 KKM.

Originally Posted by bacicat

Mine was the same. I could drive it around and occasionally it would drop the RH front bag. Got to the stage it wouldn't stay up. Slapped new struts in, all good - it is a straight forward job.

How many KM has it got on it? They seem to go about 160 to 180 KKM.

Yup, 187K Along with the transmission....

JC

Justic
I have just bought a whole set of air suspension front & back from china for $780 delivered to my door, just email this guy [email]heliospang@gmail.com ( his name is Robbin ) and tell him what you want, its a lot cheaper than going thru the UK and they supply all the dealers in the UK you can get any logo on the bags for an extra $20 each so if you need a new front set of air springs it might not be as bad as you thought good luck Declan if you have any questions just email me..

After calculated, the shipping cost for <1 x (L)RNB000750G , 1 x (R)RNB000740G and 2 x 1C4700> is USD180 to Australia. Then the total is as below:

1pc RNB000750G ---> USD220
1pc RNB000740G ---> USD220
2pcs 1C4700 ----------> USD160
Shipping Cost ---------> USD180
Total=============>USD780

Dont forget that it will not be just your air bags that are worn out but the shockers as well. To me better to replace unit as a whole

Gary

Yes way better to toss the strut as a unit. IMO the bag would last longer than the shock if used on unpleasant roads....At least the rear bags are independent of the damper...


JC