Note - I will be adding detail and pics as I get to it.
I came out to my driveway to find the nose of the Touareg all the way down, with the rear in the air. I started it and the compressor ran, and then I heard a hiss from the passenger's side front.
I jacked it up and checked again for the source of the hiss, sure enough it was from the interface of the pressure retaining valve and the air spring top cap.
I then ordered (2) 7L0 616 813 B for $112.73 ea from 1stVWparts. I later found out that the equivalent Porsche part # 955 358 720 02 is available from Jim Ellis Porsche Parts for $76.12 ea http://www.jimellisporscheparts.com/products/pressure-holding-valve/3812425/95535872002.html - This is $100 less than what the local dealerships charge!
Set the parking brake.
Place the air suspension in lock mode.
Jack up the front of the Touareg and put it on jackstands.
I cleaned around the fittings as best I could with a stiff paintbrush and soapy water. I then soaked the fittings in liquid wrench for 2 days. Try not to get much liquid wrench on the air spring, wipe up excess with a paper towel.
Carefully remove the air line from the pressure retaining valve using a 12 mm open end wrench. If you have a flare wrench, you can use that, but these aren't that tight.
Now the fun part: Removing the pressure retaining valve.
VW specifies T10158/1
![Image]()
- Good luck finding that, you'll have to wait 3 weeks for a shipment from Germany.
Cobble something up, by grinding an old socket into a pin spanner.
Say a prayer or two.
Carefully remove the pressure retaining valve. Hopefully it isn't broken. Mine was, I dropped a thousand f-bombs.
If the fitting is broken, you'll need to grease a drill and carefully drill out the old pressure retaining valve, then use a screw extractor (greased as well) to remove it. Stop frequently to clean out chips and regrease.
You may want to remove the strut for this, but a right angle drill should give you the room to do this on the car. Removing the tire and inner wheelhouse gives you a little more room as well.
With the fittings removed, replace the fittings with your new parts, install the air lines, and lower the car. Fire it up and hopefully all is well. I'm not sure, but you may need to restart a few times to get the code cleared. Cycle the suspension from loading to Xtra a few times.
I came out to my driveway to find the nose of the Touareg all the way down, with the rear in the air. I started it and the compressor ran, and then I heard a hiss from the passenger's side front.
I jacked it up and checked again for the source of the hiss, sure enough it was from the interface of the pressure retaining valve and the air spring top cap.
I then ordered (2) 7L0 616 813 B for $112.73 ea from 1stVWparts. I later found out that the equivalent Porsche part # 955 358 720 02 is available from Jim Ellis Porsche Parts for $76.12 ea http://www.jimellisporscheparts.com/products/pressure-holding-valve/3812425/95535872002.html - This is $100 less than what the local dealerships charge!
Set the parking brake.
Place the air suspension in lock mode.
Jack up the front of the Touareg and put it on jackstands.
I cleaned around the fittings as best I could with a stiff paintbrush and soapy water. I then soaked the fittings in liquid wrench for 2 days. Try not to get much liquid wrench on the air spring, wipe up excess with a paper towel.
Carefully remove the air line from the pressure retaining valve using a 12 mm open end wrench. If you have a flare wrench, you can use that, but these aren't that tight.
Now the fun part: Removing the pressure retaining valve.
VW specifies T10158/1
Cobble something up, by grinding an old socket into a pin spanner.
Say a prayer or two.
Carefully remove the pressure retaining valve. Hopefully it isn't broken. Mine was, I dropped a thousand f-bombs.
If the fitting is broken, you'll need to grease a drill and carefully drill out the old pressure retaining valve, then use a screw extractor (greased as well) to remove it. Stop frequently to clean out chips and regrease.
You may want to remove the strut for this, but a right angle drill should give you the room to do this on the car. Removing the tire and inner wheelhouse gives you a little more room as well.
With the fittings removed, replace the fittings with your new parts, install the air lines, and lower the car. Fire it up and hopefully all is well. I'm not sure, but you may need to restart a few times to get the code cleared. Cycle the suspension from loading to Xtra a few times.
