finiki

Use G291 for a search word in the allroad forum, lots of data.

Mikkel

Hi Sejfyr,

yes the graphs I made were done with a little fiddling in Excel.

I don't know what the pressure in the tank means - mine does the same high/low but I can't figure out when it falls/rises.

Your on-screen plots are a little busy. I think it will be easier to see whats going on if you log 20-30 min of driving and adjust the axis to compress the occillation a little.

Do you know what the 4 numbers with "no unit" are? There is one for each corner, but what are they?

I don't think it is significant (for the pump issue at least) that the 4 corners have different height value. The car should be level as measured by the distance from the wheel to the chassis, but that might turn into different number values in the on board computer.

My pump wen't on too often as well and got hot (especially when I started the car and the was rising while not driving - hot, hot...). The pressure has to be going somewhere if the pump goes on all the time. My money is on a leak in one or more of the airsprings and I think it will show if you log more data and scale the graph a little.

How old is the car and have airsprings been changed before?

Hope you find the culprit.

Good luck,
Mikkel

paulroad

your pressure switch is shot. It telling the pump to pump even though there is enough air. you will burn out you pump if you don't replace the sensor.

Mae

Would love to know what ended up being the solution to this! I'm having a similar problem and am very confused! Please update if possible

Mae

Would love to know what ended up being the solution to this! I'm having a similar problem and am very confused! Please update if possible