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theotiger2

Alphard Air Suspension Problem

Hi, I'm having an issue with my 2007 Toyota Alphard (gasoline engine) with 148404 km. The vehicle can no longer lift, it's leaning, and I'm getting an error message. The ride is incredibly bumpy. I scanned for errors and it seems like there's something wrong with the air suspension. Could it be the suspension air bag valve?

4 comment(s)

nicolange88

Sounds like you've got a problem with your air suspension bellows valve, which is common enough on older systems. Leaning and inability to lift definitely points towards a leak. Is the compressor running constantly, trying to compensate? Have you checked for any obvious signs of an air leak around the air springs, maybe using soapy water?

theotiger2 (Author)

Thanks for the quick reply! I haven't specifically checked if the compressor is running non-stop, but I'll listen. As for the soapy water test, where exactly should I be spraying? Just around the bellows themselves, or are there other areas? Also, is there any chance it could be something else entirely?

nicolange88

Spray soapy water around the entire airbag – all the seams and where it connects to the suspension. Also check the air lines going to the bag. While it could be something else, the symptoms strongly suggest a faulty air spring valve. Given the error codes you pulled, and the leaning, it's highly probable. With those symptoms, you're probably best off getting it checked by a workshop. Continuing to drive it could damage the compressor.

theotiger2 (Author)

Thanks so much for your advice. I took it to a local shop, and you were spot on - it was indeed the air suspension bellows valve! The repair cost me 590€. Appreciate the help in narrowing down the issue!

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