Best shops in Seattle (w/in ~30 miles) area for less common allroad suspension issue?

[Mae]

From customer experience, not the shops where you work :P (unless you can give me a deal!)

Need a shop that is very experienced with the air suspension system, priced fairly, and is trustworthy. I want a diagnosis, not a stab in the dark where I can throw $$ and *maybe* fix it.
Thanks!

[Unum]

I take my car to http://www.eliteautocareinc.com/

Always nice guys, very upfront, and fast. Specialize in Audi, VW, and BMW. Give them a ring.

[jeremy@matrix]

From customer experience, not the shops where you work :P (unless you can give me a deal!)

Need a shop that is very experienced with the air suspension system, priced fairly, and is trustworthy. I want a diagnosis, not a stab in the dark where I can throw $$ and *maybe* fix it.
Thanks!

I'm curious to hear more about your less than common AR susp issue....

[Mae]

I'm curious to hear more about your less than common AR susp issue....

The AR is slightly lower on one side than the other, both front and rear. Did 402 Mod, seemed to level it out at first, but inconsistent height, and now seems to be back to being lower on that one side. It DOES NOT leak down overnight. It's stable at whatever height it's parked at. Also, compressor runs frequently, but not for a super long time, more like it's constantly trying to adjust. A couple weeks ago we found code: 01772 - signal from level control pressure sensor (G291) 27 - 10 Implausible Signal - Intermittent. Cleared code and it came back. Then cleared again a few days later, and it's been gone for 1.5 weeks now. This code is often related to failing compressor, which it may be, but found someone with similar problem and he replaced compressor . . . his code is gone, but his car is still leaning to the left. Perhaps they are separate issues, but I'm very hesitant to throw money at the compressor before knowing what it will take to fix the whole problem.

[Charles.waite]

The AR is slightly lower on one side than the other, both front and rear. Did 402 Mod, seemed to level it out at first, but inconsistent height, and now seems to be back to being lower on that one side. It DOES NOT leak down overnight. It's stable at whatever height it's parked at. Also, compressor runs frequently, but not for a super long time, more like it's constantly trying to adjust. A couple weeks ago we found code: 01772 - signal from level control pressure sensor (G291) 27 - 10 Implausible Signal - Intermittent. Cleared code and it came back. Then cleared again a few days later, and it's been gone for 1.5 weeks now. This code is often related to failing compressor, which it may be, but found someone with similar problem and he replaced compressor . . . his code is gone, but his car is still leaning to the left. Perhaps they are separate issues, but I'm very hesitant to throw money at the compressor before knowing what it will take to fix the whole problem.

You realize you can adjust each corner of the car independently with the 402 mod right? Try measuring the ground to fender on each side, adding the necessary amount to the sagging corners and see what that does for the issue...

Be sure to do it n level ground.

[Mae]

You realize you can adjust each corner of the car independently with the 402 mod right? Try measuring the ground to fender on each side, adding the necessary amount to the sagging corners and see what that does for the issue...

Be sure to do it n level ground.

Umm, what did you think we did with the 402 mod?? :P Not only can you, but you have to input each corner's level independently. It asks for the test value, being the measured value, so yes, that's what we did. Not trying to be a wise ass, I just don't understand what other way there would be to do the 402 mod. Also, you're not supposed to measure from the ground, it's from the center of the wheel to the fender. Did it on level ground. Seemed to level things out at first, but heights were inconsistent, and have gradually seemed to return to the one side being slightly lower.

[jeremy@matrix]

Which side is it lower on?
Have you consistently had the same amount of fuel in the vehicle when diagnosing?

[Charles.waite]

Umm, what did you think we did with the 402 mod?? :P Not only can you, but you have to input each corner's level independently. It asks for the test value, being the measured value, so yes, that's what we did. Not trying to be a wise ass, I just don't understand what other way there would be to do the 402 mod. Also, you're not supposed to measure from the ground, it's from the center of the wheel to the fender. Did it on level ground. Seemed to level things out at first, but heights were inconsistent, and have gradually seemed to return to the one side being slightly lower.

Haha sorry didn't mean to come off as a smartass myself. And you are right about the center of the wheel.

There could be a pinhole leak or something that is making that side lose enough pressure just to sag. It seems weird though that the computer doesn't see this and try to reinflate that side. I've pretty much exhausted the limited knowledge I have on the allroad air suspension.

[jeremy@matrix]

Haha sorry didn't mean to come off as a smartass myself. And you are right about the center of the wheel.

There could be a pinhole leak or something that is making that side lose enough pressure just to sag. It seems weird though that the computer doesn't see this and try to reinflate that side. I've pretty much exhausted the limited knowledge I have on the allroad air suspension.

This could be why the compressor is running more than before...it's trying to pump up that side while pressure is slowly bleeding off. With no Compressor shutoff overtemp code, perhaps the leak is just sooo tiny.

[Mae]

Compressor is likely running more simply because it is weak. Even if tiny leak, car would most likely sink down overnight. Another got with similar problem just replaced compressor & now it doesn't run often anymore, but car still crooked, so likely 2 issues. Plus, it's front & rear of driver's side, so unlikely leak related. Re: fuel level, no, it hasn't been the same.

[jeremy@matrix]

Compressor is likely running more simply because it is weak. Even if tiny leak, car would most likely sink down overnight. Another got with similar problem just replaced compressor & now it doesn't run often anymore, but car still crooked, so likely 2 issues. Plus, it's front & rear of driver's side, so unlikely leak related. Re: fuel level, no, it hasn't been the same.

Yes, unlikely to have a rear airbag with a leak, but we've seen a few.

Just to compare apples-apples, I'd suggest trying to have the fuel level the same when diagnosing this type of stuff. The air susp sometimes appears to have a mind of its own.

[Mae]

Yes, unlikely to have a rear airbag with a leak, but we've seen a few.

Just to compare apples-apples, I'd suggest trying to have the fuel level the same when diagnosing this type of stuff. The air susp sometimes appears to have a mind of its own.

I know a rear airbag could leak, but the car should sink down if it did. As far as fuel level, I monitor the car all the time, every time I park, and the issue is consistent regardless of fuel level, though the fuel level has certainly been the same at some times when I was measuring. Point being, it's an interesting idea, but there seems to be no correlation. Yes, the air suspension most certainly does seem to have a mind of its own though. :(

[jeremy@matrix]

And only the one code in Level Control? Very strange.
And to confirm, you've played with 402 to try to "over-raise" the driver side(ie so that driver and pass side are not the same heights)? And it's still lower than pass side?

[Mae]

And only the one code in Level Control? Very strange.
And to confirm, you've played with 402 to try to "over-raise" the driver side(ie so that driver and pass side are not the same heights)? And it's still lower than pass side?

Yes, did 402 and entered the values I measured, therein telling the system how low it was in comparison to the others. Got better for a bit, but inconsistent. Now more back to the dynamic of being lower on the left.

[jeremy@matrix]

Sounds like you need to see a plastic surgeon for a lift and tuck.

[Allrad]

Chris at Fine Tuning in North Seattle is the only shop I trust with my Allroad. Tell em Shannon sent ya.

[cleaver]

+1 for Fine Tuning on north Aurora.

[diagnosticator]

You realize you can adjust each corner of the car independently with the 402 mod right? Try measuring the ground to fender on each side, adding the necessary amount to the sagging corners and see what that does for the issue...

Be sure to do it n level ground.

Ride height should be measured by measuring from the center of the wheel to the fender. [(Lower edge of wheel cap to fender) + (Upper edge of wheel cap to fender), divided by 2] If measurements are made from the fender to the ground, then tire inflation/tire temps will effect the measurements.

[Charles.waite]

Ride height should be measured by measuring from the center of the wheel to the fender. If measurements are made from the fender to the ground, then tire inflation/tire temps will effect the measurements.

I think they corrected me above. but yea I hadn't thought about WHY they specifu hub to fender rather than Ground to fender. Thanks.

[diagnosticator]

I think they corrected me above. but yea I hadn't thought about WHY they specifu hub to fender rather than Ground to fender. Thanks.

I missed that, but it's casual.

[Charles.waite]

I missed that, but it's casual.

Yup

[jeremy@matrix]

Any resolution to this?

[jeremy@matrix]

Another Allroad client reminded me of this exact issue she had on hers. A new compressor solved her issue.
We have another Allroad client with this same code and the car drops from L2 to L1 on every startup, and won't raise back up to L2 before the compressor times out.