Thread: Suspension Issues

As the system is meant to maintain height with only 3 height sensors working, albeit without fine adjustments, I wonder if the out of range condition occurred after the suspension lowered rather than triggering the lowering and therefore the air-spring or the corner valve could be leaking. Have you sprayed soapy water all around the air-spring? As leaks mostly occur at the folds, raising to off-road height before spraying is indicated.

PS Theoretically the heights should be recalibrated after fitting a new sensor or even just refitting after removal but its not critical if not calibrated.

Thanks Graeme - the initial fault showed up on the dash when the car was still up at onroad height and driving it there was no issue with the fault. I should have read the codes then but was too lazy.

It dropped overnight so I guess we will see what happens tonight. No, I have no checked for a leak at this stage but if it drops again I will have to do so. The bags are now 16 years old and covered 225,000km so I am expecting things like air bags, another compressor rebuild and wheel bearings to pop up before too long.

Cheers

Garry

The rear springs in my D4 had serious cracks on the inside of the top folds at 90K kms so I replaced them shortly afterwards as I didn't expect them to last until the new shocks needed replacing in another 80-90K.

You have done very well out of the bags.

i had three replaced under 6yrs old,then the corner valves decided they would play up intermittently,over the next few years.

One left rear bag was replaced under warranty,the others replaced were the fronts.

The car did not drop overnight and the fault has come back but I will know it will. So no leak at the moment.

Time to save the pennies for new shocks, airbags and air compressor rebuild.