I purchased a 2 owner 2011 Sport Supercharged about a month ago with 69k miles on it. It has been... interesting. I just read nearly 50 threads on EAS problems, and don't think I've seen one quite like this.
EAS worked great, switches to all modes and heights very quickly, no issues what-so-ever.
Yesterday I jacked the car up to add some HR spacers to all four corners. Just 15mms in the front and 25mms rear. At one point doing the fronts, I believe I turned the car on to rotate the wheel in order to be able to inspect the sway bar link ends more carefully.
I finished and began to drive the car like normal for the rest of the day. One time, I noticed when I turned it on, the indicator said it was in off road height, even though I hadn't pressed it and the car was clearly at standard height. Another time I turned it on and it did the same thing, but also said it was in sand mode, even though I hadn't done that either. Changing the suspension settings worked like normal and making go up or down seemed to fix the issue.
Later that day I was sitting in my driveway looking at the garage door and I tried to raise the car to off road height. The rear immediately raised like normal (in a few seconds) and the front wasn't moving. The 4x4 screen would constantly read "raising" even though nothing was happening. I lowered it back down to standard and took it for a ride around the block. I stopped a couple of times and tried to raise the suspension. Rear would pop right up but not the front. Then I drove it and put it in access height and then nothing would raise up, even when when i drove it up to 40 mph. No faults or errors of any kind.
Some time later time, I got a message that said suspension will raise when cool, or something like that. I parked the car in the garage and came back an hour later. Started the car and tried to raise it to standard. Back came right up, front did too after an extremely long time, like 60 - 120 seconds. Left it in standard and shut it off. Came back 8 hours later and tried to raise it to off road. Back end popped right up in a few seconds and front took over 60 seconds to raise to the correct off-road height, but seemed fine when it was there. Left it overnight and this morning it was right in the same spot. Super symmetrical ground to fender, and hadn't even dropped a cm.
the weirdest part of all of this is at no point did I get and error code or fault. Not even the suspension raising slowly one I've read about. The only thing was that cooling message. So I am not really sure where to start. I have a really hard time believing this was an unrelated coincidence with me jacking the car. Is there a way to reset the suspension? Could the position sensors somehow been disturbed when I took the wheels off?
- seems to be no leaks
- compressor seems to work fine, because rear raises in a few seconds
- fronts take 60+ seconds to raise
- no faults or messages at all
- holds air all night
I am not expecting a diagnosis, but I am hoping someone could provide guidance on when to begin and what to check in what order.
Thank you in advance for the help. best.