Was pointing to the highly unlikelihood of 4 (or more) of the same component breaking down at the exact same time.

I've done the soapy water test all over. I did this dance a couple of months ago and rebuilt the block. (possibly to no avail it would seem) Could still hear the compressor cutting in and out and in the absence of any visible leaks and through discussing it on here, the opinion was offered that my compressor operation is probably normal and that I can either just hear it or feel it. I never measured the distance from arch to centre wheel as I hadn't noticed a drop in height. It never sags at one particular corner. Always looks even. My road also has cambers at the curbs which perhaps hasn't helped as the delay timer corrects the height too thus never really drawing my attention to it other than as I said, I can hear the compressor from time to time. The leak is slow as it's never been down to bump stops and judging by the measurements I've recently taken, the drop is relatively even all around, except for the first night I measured when only 3 corners had moved. I measured this morning and 4 corners had moved.

Above, I was asking if there is one particular airline that if a leak occurred, it would drop the whole car evenly? If only the rear right bag had a hole in it, I would expect only the rear right corner to drop. Is that correct?

It would be ideal if all 4 bags are leaking. Easy fix. You know where the fault is. If it's in the block and soapy water shows nothing, it's gonna be more trial and error. Can't see inside the block when it's got air in it and stripping it down may not turn up any visible signs of the fault.

Based on that logic, I best keep an eye on the radiators in my house. There's 17!

Update whilst im waiting for the manual valve set I ordered to arrive.

Measured heights again overnight. This time it appears all 4 corners have dropped whereas last time only 3 did.

Bit of a nuisance being intermittent as surely if it's leaking, it's leaking which is why I haven't been entirely convinced in the past that it was.

Although I don't know when the bags were last replaced, they all look to be in good, clean condition. No cracking around the bottom.

I guess it would be unusual for all 4 bags to spring a leak at the same time? I'll know for sure when I get them valves but I would summise that i'd be looking at the block for the leak based on what I've found so far?

Although it had dropped by about 30-40mm per corner, when I started it up, it rose instantly so there was still air in the reservoir so it can't be between that and the block. I'm positive it's not leaking from the airlines out of the block.

There must be 1 source with a slow leak that causes the whole car to lose air consistently at each corner but slow enough that it doesn't drop much. It's never on bump stops.

Valve set purchased as per Gilbert's suggestion.

Yeah I get that. Just need a starting point though. No good flinging a load of air in and popping the bag. That'd ruin yer day!

About 55 psi is normal ride height according to a quick Google.

I thought more of an inline isolation valve like you'd put on a tap or shower.

Are these just a push fit with a Schrader valve on the other end?

And probably most importantly, what pressure is meant to be in a bag?

Is there anything relatively cheap that can be put inline on the airlines to the bags to isolate them from the block once they're up to pressure? At least then I'd be able to tell if it's bags or block side

Dunno when or if bags were done.

I'll do another measure tonight.

I'll assume that it can't be the block if 1 corner is good?

I rebuilt the block a couple of months back. I'm confident there's no leaks from the lines. If there was an internal leak, it would drop all 4 corners?

Morning all.

Pulled the delay timer last night and measured the distances to begin tracking down why the compressor keeps cutting in and out.

FL 515mm
FR 515mm
RL 510mm
RR 525mm

This morning they are

FL 515mm
FR 485mm
RL 500mm
RR 480mm

Clearly I'm losing air from 3 corners. Am I unlucky enough to have 3 bust bags or where else on the circuit might I start looking?

my gearbox selector was broke but now it's not. Finally got round to doing it. Now have Neutral and low range.

Gilbertd wrote:

Hmm, that's very true. But I think they must do. Every car I've ever bought has been dirty......

Same here.

Did you apply the sticker of the bull yourself? Or did it come attached to the battery?

If it was meant to be dirty, they'd sell em like that. :-)

Do they come in walnut?

done!

Got me this in the post today.

Gonna go fit it now.

This seller on ebay has a few trims. Grab em while you can.

cheers Orangebean. I see they list them on ebay as a damper. That's where I was going wrong.

As like most people, I require a gas strut for the cubbybox/cup holder/centre console. I can only see 2 on ebay and they're horrendously priced at around £25. It's cheaper for 2 tailgate gas struts! Anyone know the part number or where may do them at a more sensible price?

Confirmed. Grey plug it is.