vtraudt

I need to replace the A/C pressure switch (4 contacts, high/low, on condenser, driver side).

Part number seems to be 8D0959482B.
Also need the O ring, but can't find it.
Part number?
Source?
Exact dimensions (to order by dimension)?

SloopJohnB@mac.com

Sorry, didn't grep your earlier post on AC line O-rings being replaced. Try 8E0260749C for AC line O-rings, but the pressure switch might come with new O-rings..it should if it's an OEM part but aftermarket you never know.

ECS tuning has AC line O-rings…you have to plug in your car and go to climate control and then to AC and then use the search function for O-ring and then scroll down.

But you might be better off checking with your dealer for the P/n and price…shipping overcomes the price of the O-rings.
And if you're going to do the pressure switch and it's O-rings you've got the system open so consider replacing the AC line O-rings as well, especially the ones at the compressor manifold.

vtraudt

Thank you!
Is there an Audi A/C O-ring kit or assortment available? Constantly chasing them. Would be nice to have on hand!

vtraudt

Would this one cover the Audi A/C system?
http://www.ebay.com/itm/O-RING-WASHER-GASKET-RAPID-SEAL-SERVICE-KIT-MT2622-/131248934569?pt=Motors_Car_Truck_Parts_Accessories&hash=item1e8f0bcea9&vxp=mtr

SloopJohnB@mac.com

eBay says it is compatible and for the A/C system. Includes 4.2. YOu'll have to pick the right O-ring…I don't know if each O-ring has a part number in that kit.