A6 Allroad 2013 suspension on the floor

[Audi dan]

Evening all

The Allroad has an issue with it's suspension.

It's slammed in the floor for no reason today and I need to find the location of the fuse and relay for the compressor 

I can't hear anything running 

I've replaced an airbag last year due to a broken rear headlight level sensor and was wondering would another one cause all 4 corners to drop?

Regards 

Dan

 

[Steve Q]

I'd say a faulty compressor. I'd recommend a diagnostic check to see if any fault codes flag up 

[Audi dan]

Thanks I'll get codes read tmrw

Dan

[Audi dan]

I'll also check the relay although I've never known relays to go.

It's in the rear right wheel arch I believe.

[Steve Q]

Please keep us posted on how you get on 🙂 

[Audi dan]

Will do... hopefully something simple.

I will check the other 3 headlight level sensor arms aswell.

[Magnet]

Hello Dan,

If you need parts/advice on air suspension issues, then Bagpipingandy on eBay is your man. 
Kind regards,

Gareth. 

[Audi dan]

Ok thanks 

[Audi dan]

Hi all

I had the codes read to this morning and it says an air leak.

I can't hear one although the compressor isn't running.

Would the compressor turn off due to an air leak?

What if it's the compressor at fault?

Where's the relay for the compressor?

Kind regards 

Dan

[Audi dan]

Think I may buy a new compressor..any good places to purchase from?

Regards 

Dan

[Steve Q]

Thought it'd be the compressor 

[Audi dan]

Me too....

[Magnet]

Hello Dan,

’Thinking it may be’ the compressor maybe a costly assumption, since it appears, an assumption it is. 
Where to get one ( if it is)? 
Refer to my post of 18 hours ago. 
Kind regards,

Gareth. 

[Audi dan]

Hi Gareth I've emailed Andy with my info a D waiting for his reply 

I'll go over the car before coming to a firm conclusion.

Regards 

Dan

[Audi dan]

I'll keep you posted.

Dan...hoping it's something simple 

[Magnet]

Thanks Dan,

Well worth checking you have 12v at the compressor before coming to any decision.

Kind regards,

Gareth. 

[Audi dan]

Ok so I've looked at all bags and no obvious tears. Unfortunately as there is no air at all can't check for leaks.

I'll get under the car soon and check for lower etc but the relay and fuse which I believe are for the pump have tested fine..

Hopefully it's the pump and or power issues.

The reason why I think it's the pump as I had residual air in the air tank in the boot for a day or two and no leaks were heard.

Anyway I'll keep you posted.

I haven't had a reply from bag pipe Andy.

Is there a number for him?

Regards 

Dan

[Magnet]

Sorry Dan, always dealt with him through eBay and messages. 
Kind regards,

Gareth. 

[cliffcoggin]

6 hours ago, Audi dan said:

The reason why I think it's the pump as I had residual air in the air tank in the boot for a day or two and no leaks were heard.

 

Once you have restored pressure a good test for leaks is to paint or spray soapy water on all components watching for bubbles.

[Audi dan]

I'll get under the car once the weather is more forgiving.

[Audi dan]

Ok so the codes were mainly level codes which I expected but there was two an overheating code and a code for a leak on or near the acumilater?

Dan

[Steve Q]

This is the location on the A8. So it might be similar on the a6

[Audi dan]

Ill look tmrw afternoon if is there that's a bonus. Audi tech didn't think it was but it'll save me some work if it's just gone.

Thanks 

Dan

[Magnet]

Any progress on this Dan?

Kind regards,

Gareth. 

[Audi dan]

Hi Gareth

Thanks for asking...it was the air pump.

I ordered it from aerosus and it came in two days.

I went through everything else and by default it must be the pump and it was.

Funny you should now ask because it's been driving about fine for 8 days then when my wife went out the back went down and not the front.

I've just been out there and changed the blown 40a fuse which has never blown before.....I disconnected the battery and it worked again after cleared codes.

I can't hear any air leaks and it's been sat fine for over a week...the mind boggles.

Anyway I've left it in jacking mode on Allroad height and will see if it drops at all.

I was thinking if buying two new air bags as that is only what else it can be ordered bad unions at the connecting point.

I'll keep you posted but nothing seems to suggest an audible leak.

Regards 

Dan.....I'm grateful though the new pump is fine....maybe the fuse was in its way out.

One thing I've noticed though when it was sat low in all four corners for a week once it's back up high the back does feel less giving and more harder.