Thread: solutions sought

Are you getting an air suspension inactive fault message on the dash or is it just dropping over time and then pumping itself up when you restart?

If an airbag starts to leak on these, they will lock out that corner of the vehicle from the compressor so they won't even try to pump up until the repairs have been made and the fault code cleared. This saves the compressor from running too long and burning out, and also allows the rest of the cars airbags to operate to get you home.

Which corners of the car are sagging, and as ariddell asked - so you have a fault message up, etc?

The more info you can provide, the better the diagnosis .

Oh, and congratulations on your purchase - I hope that there aren't any other issues with it.

Cheers - Gav

Originally Posted by bacicat2000

If an airbag starts to leak on these, they will lock out that corner of the vehicle from the compressor so they won't even try to pump up until the repairs have been made and the fault code cleared.

I don't think that's actually the case, our old L322 popped a front airbag and it didn't throw any code. Would drop on that corner and the compressor would pump up that corner again when you restarted or when level stopped at junctions - replaced the airbag pronto as I didn't want it stressing the compressor running it too much.

Both are right.

Fault will come up if the compressor overheats, or if the system pressure doesn't rise when the compressor is running - this sounds odd but if the split on the roll of the bag opens and allows more air to escape than the pump can supply for a couple millisecs before (the split) gets pinched closed again it will trigger this error (Pressure not increasing while pump operating). Both these will give the Air Sus Inactive message

If the compressor can still comfortably lift and maintain height with the leak, no fault will be recorded.

Makes sense, with that leak it was a split right on the roll which sealed to some degree when pumped up so it wouldn't have triggered a pressure not increasing fault.

hi agn .,thankyou for your feedback.,

i do not have any other fault codes on the dash besides the airbag symbol.,the wagon makes no effort to pump up suspension at all and
when started and in drive pump does not operate that is the pump under spare at rear .,noticed after checking all fuses that there is another pump mentioned have not identifie4d this as a possible cause .,have a feeling though that someone may have gone through and played with it prior to me buying and cleared codes .,yet another issue occured yesterday after we finished checking pump and fuses etc treid restarting and key wont turn and gear stick wont move had similar probs with td5 and and put ageing key next to rear window and done a super unlock ., fixed issue will try this .,.,

thanks to all

another intersting thing is when entering the car there is a funny clicking or knocking sound from under consul area and i have noticed because it sleeps close to my room that this seems to happen periodicly throufgh the night
have got battery up to 12.8 v on charge and it seems to be fine and to answer aridell question bothfront suspension bags are dropped at the same level at bottom i guess .,cheers

Clicking under the dash will likely be one of the ventilation blend motors, on ours it was one in the drivers footwell in the centre at about ankle height that was doing it.

If both front have dropped then i would suspect a valve block or air line fault rather than the bags themselves.