Toyota iQ Air Suspension Problem

Sounds familiar! My old Audi A6 had similar symptoms – bumpy ride, leaning, error messages. Turned out to be a problem with the pneumatic suspension, specifically a leak in one of the air bags. Have you checked the bellows valve for visible damage or leakage? Is the compressor running constantly to compensate?

Thanks. I've looked at the bellows valve, but I'm not sure what to look for. What kind of damage or leakage should I be searching for?

When mine went, there were visible cracks, and it looked perished, like old rubber. Listen closely around each air spring when the compressor is running; you might hear a hissing sound, indicating an air leak. Diagnosing air suspension can be tricky without proper equipment. Given the error codes and leaning, it sounds like a defective suspension air bag valve. The repair cost an arm and a leg. I’d suggest getting it checked by a workshop before things get worse, especially if you don't have experience with pneumatic suspension.

I appreciate the advice. I'll take it to a local workshop for inspection. Hopefully, the repair cost won't be too excessive. Thanks again; this has been very helpful.