Flat tyre showing as a suspension fault.

Set off to work this morning, at first it felt like I had a soft tyre. Some idiot right behind me so couldn't stop straight away, but I then noticed the yellow warning light for the adaptive suspension had come on. I pulled up when I could, had a quick look round the car, all seemed OK, ride height seemed OK. (I had a similar warning last year when the pump failed and the car was sat right down.) Anyway set off again, fault cleared after restarting, only to come on again after a couple of miles. Stopped the car, restarted, fault cleared, then after a couple of miles, warning light on again. Once again, stopped the engine, restarted, fault cleared. Its a 12 mile drive to work. When I got to work I put the suspension into Allroad position and it seemed to lift OK Checkd round the car, found a very squidgy looking rear offside tyre..which I should have spotted in the first place. Anyway it is now blown up and will be keeping an eye on it before going home but why does a flat tyre affect the suspension like that?

There's probably a fail safe built in when a sensor detects the suspension travel is 'off' on one of the corners, possibly like TPMS but I'm guessing one of the sensors in the suspension has detected a discrepancy between the 4 hence the error, I could be totally wrong but that's what it sounds like to me.


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a flat tyre means the car sits down in that corner. this means the ride height sensor will be lower than all the others, thus the car flags it as a fault.

Thanks guys, I thought it might be something like that, will let you know how the drive home goes...
If I had relied on my senses more instead of what the dashboard was telling me I'd have spotted the low pressure earlier. You learn by your mistakes!

One new tyre later and all is fine. I really shouldn't be using the Air Suspension warning as a tyre pressure indicator! Mind you I've never been happy on getting tyres repaired, you just never know if and when the repair might give way.