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gram1210

Member

• Mar 12, 2020

• #1

Hi folks,
I have a weird air suspension issue and am not sure where the problem is.
I was filling up with fuel yesterday and the passenger side randomly inflated itself to the maximum height. I ended up driving off with the car leaning over and found it corrected itself a mile or so down the road.
Fast forward to today and driving along, it's done it again. I have tried pressing the button to try and level the rear out one way or another but it doesn't. The light on the dash flashes, I get the chiming noise and can hear the compressor either run and stop or hiss to let the air out but the blasted thing hasn't levelled out still.

Am I looking at a new pair of ride height sensors or a replacement SLABS ECU? I'm pretty confident the bags aren't an issue, I don't get any air loss at all overnight.

 

Shimsteriom

Master Procrastinator

• Mar 12, 2020

• #2

You could try swapping the sensors over and see if the problem moves as well.

 

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gram1210

Member

• Mar 12, 2020

• #3

That's a good idea, thanks. Am I likely to need the sensors (whether swapped or new) to be calibrated afterwards?

 

Shimsteriom

Master Procrastinator

• Mar 12, 2020

• #4

Disconnect the battery first and you won't need to recalibrate them.

 

Landmark2

Well-Known Member

• Mar 12, 2020

• #5

+1 on disconnecting battery first (make sure you have your radio code if applicable)
I did both of mine not so long ago no problem. Worth getting the bolts too as they will probably be well rusty.
Griff

 

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Floriin

Member

• Mar 12, 2020

• #6

Had exactly the same issue. New sensors will cure it.

 

Shimsteriom

Master Procrastinator

• Mar 12, 2020

• #7

@gram1210 let us know how you get on.

 

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gram1210

Member

• Mar 12, 2020

• #8

Yeah, the situation got worse...the nearside air spring exploded earlier on. It scared the absolute life out of me. I can only imagine that the sensor is faulty and the compressor kept topping the bag up with more air until it couldn't take it anymore.

I will be phoning the garage in the morning to get a quote for replacing the bag and height sensor. I will keep you updated when that is solved.

 

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Floriin

Member

• Mar 13, 2020

• #9

For sure is to late to say, but in my case I drove very slow home, then deflate air spring with nanocom, this way my air spring was fine.

 

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gram1210

Member

• Mar 13, 2020

• #10

I manually deflated the bag by unscrewing the pipe from the valve block, back to roughly normal ride height and as soon as I drove the car again it reinflated itself.
Luckily I was doing about 3mph as I turned into my street.

 

sierrafery

Well-Known Member

• Mar 13, 2020

• #11

Don't play with those voss connectors at the valve block cos the o-ring once disturbed i migh no seal well again

 

Interceptorxj

Well-Known Member

• Mar 13, 2020

• #12

Bit late now but if I had replied sooner I would have said; yes faulty ride height sensors is almost certainly your problem and don't drive with it like that as your air bag will explode, ask me how I know! They do go with an almighty bang don't they.