Thread: D3. Wheel balance. Now EAS fault???

Originally Posted by Markus1

Gday guys. Just had a tyre balance done. Straight away upon driving off up pops an Amber light suspension fault. Normal height only. Then after comes up with fault -will raise once cooled. Now the front is sitting down and neither front nor rear will raise or lower.

I wouldn't have thought tyre joint can really screw it up so I'm putting it down to coincidence....hopefully...haven't had codes run.

Left the car to cool.....didn't fix....unplugged battery.....didn't fix. Tyre guys don't know.

Only thing non stock is steel rims so more weight on suspension but those have been on now for a few hundred km without any issues.

Will get it read tomorrow. Just thought to ask for any ideas??

Mark.

Check all height sensors at each corner are plugged in and not damaged?

As above possibly damaged a sensor by not jacking it correctly or over extended an airbag.

Check they never damaged the air compressor..

cheers Ean

Thanks for replies.

The airbags appear to hold pressure and the plastic cover of the compressor appears intact, unscratched etc. Not sure if that proves anything without taking the cover off and inspecting inside. Tomorrow's task.

Not sure how they can overextend a bag????When the car rolled off the hoist it was down very low near access height which seems odd as everytime ive jacked the car off the rails the suspension is always left sitting really high.

Just picked up my kid. The Amber lamp is gone but now system says 'will raise suspension when system cools'. Keeps saying that but will only occasionally raise up a touch really slowly. At one point I did get it into off-road height before foolishly dropping it to access. Now it's somewhere between access and normal. Stuck again. Ha ha. Crickey.

I'd say this points to something compressor area related. Annoying that it happens right at tyre joint. I have to be careful about blame and jumping to conclusions. Car has 150k and is 10 years old. How long are these compressors good for?

Have you tried a soft reset? That is disconnect the battery and leave for 30 mins. Worth a try.

If it's the compressor you will hear it running . Once it builds pressure it should stop but if it has a leak it will continue running till it gets hot. If you start the car then walk to the passenger side rear wheel you should be able to tell if it continues to run or not .

could be coincidence, but they sometimes crack on the cap between the 2 airlines . Some soapy water sprayed onto the cap will soon tell you if it's leaking or not at the compressor end cap

Cheers Ean

My suggestion is that through the raising of the suspension to remove a wheel unfortunately you’ve gained an airbag leak. The compressor is endlessly running to maintain pressure and cannot, hence can’t get it up to normal height and flags over temp.
Clearly theoretical but would explain it. Can only guess that the stretching of a bag as its extended to raise the sus to get the wheels off (droop) has opened a hole?
Failing that the compressor has failed at the same time and is not pumping effectively with the same outcome.

I think you have it Jeffster. I opened up the compressor cover. Looks fine in there, no damage. Started the car, compressor ran for about 2 min then shut off as per normal without any overheating error code.

Took it for a short spin, rear is properly up but front only came up a little. After 5 min the overheating message is back. Now it's parked with battery disconnected. Hopefully by morning I can see which front bag is pooped.

Will post update.

Cheers
Mark