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Update so I ended up ordering:

1) Compressor OEM Denso $368.96
2) A/C Orifice Tube$ 0.35
3) A/C Receiver Drier / Accumulator$ 10.59
4) A/C System O-Rings, Seals, & Gasket Kits $22.79


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Please post part numbers and source. Also, pre-LP or LP?
 

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Please post part numbers and source. Also, pre-LP or LP?

I couldn’t keep the formatting, but here’s a copy and paste job from the invoice I got to replace the compressor, including part numbers. A couple of the lines had a “list price” but the final number is the number for the final price on the quote.

On an LP:

A/C Compressor 4F0 260 805AH $1230.771.00$880.0

Receiver Drier 420 820 189 $126.67

Orifice Tube 8E0 820 177A $150

Oil Filter 079 198 405E$24.95
Seal 07L 115 446A$42.6

Oil Strainer 07L 103 0818.00$476.8
Sleeve N 910 208 033.00$8.46
Bolt N 107 002 01$0.26

Centering Sleeve 045 115 143$1.36
O-ring WHT 003 7312.00$63.2
O-Ring WHT 003 7321.00 $31.6

Plug N 016 024 32.00$7.56

Seal Ring N 013 811 52.00$1.34
Bolt WHT 003 868A 9.00$157.32

Seal 07L 121 119B$42.6

Synthetic Oil 5W-30 8.80$83.6

Coolant concentrate per gallon2.00$56

Connecting Pipe 07L 121 237B$108.33

Labor to install above parts and charge A/C System8.00$880

 

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Did you check a Compressor solenoid valve for proper operation? Its location is in the front of your car.
 

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Discussion Starter #24
Did you check a Compressor solenoid valve for proper operation? Its location is in the front of your car.

I did change the high pressure switch at the condenser - if that’s what you are asking.


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I couldn’t keep the formatting, but here’s a copy and paste job from the invoice I got to replace the compressor, including part numbers. A couple of the lines had a “list price” but the final number is the number for the final price on the quote.

On an LP:

A/C Compressor 4F0 260 805AH $1230.771.00$880.0

Receiver Drier 420 820 189 $126.67

Orifice Tube 8E0 820 177A $150

Oil Filter 079 198 405E$24.95
Seal 07L 115 446A$42.6

Oil Strainer 07L 103 0818.00$476.8
Sleeve N 910 208 033.00$8.46
Bolt N 107 002 01$0.26

Centering Sleeve 045 115 143$1.36
O-ring WHT 003 7312.00$63.2
O-Ring WHT 003 7321.00 $31.6

Plug N 016 024 32.00$7.56

Seal Ring N 013 811 52.00$1.34
Bolt WHT 003 868A 9.00$157.32

Seal 07L 121 119B$42.6

Synthetic Oil 5W-30 8.80$83.6

Coolant concentrate per gallon2.00$56

Connecting Pipe 07L 121 237B$108.33

Labor to install above parts and charge A/C System8.00$880


Thanks, but curious where he got the parts for significantly cheaper.
 

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Discussion Starter #26
Hey guys, do you know where the dryer is located?
From the parts diagrams I found at Bullstuff it looks like number 13 must be at the passenger side but I wanted to ask before getting under the car trying to locate it...



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Discussion Starter #27
Thanks, but curious where he got the parts for significantly cheaper.

I found the compressor new for a very good price on
Rockauto and on eBay.
I ended up getting it from eBay since it was a Denso unit.
It arrived yesterday as it was promised and looks like 100% authentic unit made in Japan.

https://www.ebay.com/itm/352080055579

The rest of the items from www.RockAuto.com






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Hey guys, do you know where the dryer is located?
From the parts diagrams I found at Bullstuff it looks like number 13 must be at the passenger side but I wanted to ask before getting under the car trying to locate it...



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It should be in front of the driver side rear tire.
 

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I couldn’t keep the formatting, but here’s a copy and paste job from the invoice I got to replace the compressor, including part numbers. A couple of the lines had a “list price” but the final number is the number for the final price on the quote.

On an LP:

A/C Compressor 4F0 260 805AH $1230.771.00$880.0

Receiver Drier 420 820 189 $126.67

Orifice Tube 8E0 820 177A $150

Oil Filter 079 198 405E$24.95
Seal 07L 115 446A$42.6

Oil Strainer 07L 103 0818.00$476.8
Sleeve N 910 208 033.00$8.46
Bolt N 107 002 01$0.26

Centering Sleeve 045 115 143$1.36
O-ring WHT 003 7312.00$63.2
O-Ring WHT 003 7321.00 $31.6

Plug N 016 024 32.00$7.56

Seal Ring N 013 811 52.00$1.34
Bolt WHT 003 868A 9.00$157.32

Seal 07L 121 119B$42.6

Synthetic Oil 5W-30 8.80$83.6

Coolant concentrate per gallon2.00$56

Connecting Pipe 07L 121 237B$108.33

Labor to install above parts and charge A/C System8.00$880



good information
 

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Discussion Starter #31 (Edited)
Quick update!

The compressor is out!
Honestly it wasn’t very bad, a few notes that come to mind while everything is fresh:
1) kind of obvious but remove the bracket holding the handbrake cable out of the way


2) loosen up the bracket holding the compressor connecting plug


3) remove connecting shaft - well for me this wasn’t easy so I just removed the front cone of the old compressor - there are 6 allen bolts which are easy to remove / crank the starter little by little to have access to all of them


4) one of the refrigerant pipes (red- high pressure) is relatively easy to unscrew and remove, so do that first
5) after removing the high-pressure pipe you kind of free up space so removing the (green - low-pressure) isn’t hard - the bolt holding this pipe is on top of the pipe - so not visible in my pic since the pipe is covering it


6) after that remove the three bolts holding the compressor
7) rotate and remove the compressor
8) make sure not to lose the three dowels (typically stuck on the old compressor) make sure you transfer these to the new compressor







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Discussion Starter #33
Today I opened up the old compressor and it was indeed broken but not very badly as I thought.









Now unfortunately I’m stuck and I can’t install the new compressor for probably another week since the connecting plug was damaged (the compressor crashed it inside the box during shipping).





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Today I opened up the old compressor and it was indeed broken but not very badly as I thought.









Now unfortunately I’m stuck and I can’t install the new compressor for probably another week since the connecting plug was damaged (the compressor crashed it inside the box during shipping).





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You can’t just use the old connection off and put it on the new one? You can just pull the pins out of them so you aren’t actually doing any wiring.


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My compressor shaft didn’t break until it totaled the compressor and pushed metallic crap around the system. Mine is a 2012 LP550-2. Took it to the shop, they have to drain the oil and drop the pan to get at the compressor. New compressor and inline filter and condenser
$4600.....
A new bosch compressor is $900, Filter and condensor another $600, 3 hours of labor-
 

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Replacement AC orifice tube & filter - $3.49

Tip on the replacement orifice tube. NAPA has the exact replacement part for $3.49. Part number: 207311
Yes, I have used this to know that it is the same part.
The old tube/filter can be easily extracted from the transition tube with needle nose pliers.
The transition tube is located in the passenger side foot well. This is a good place to back flush the system from as well.
 

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Discussion Starter #37
You can’t just use the old connection off and put it on the new one? You can just pull the pins out of them so you aren’t actually doing any wiring.


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The new version of the compressor has a male to male plug that connects the compressor to the car



The older had a wire coming out of the compressor so I couldn’t transfer the old wire to the new compressor.



Since I didn’t want to splice the cable and reconnect them I try to remove the pins. That was doable in the broken plug (I did remove it) but it was impossible to remove the purple guard without special tools in the old plug. I could order another plug from the internet but at this point it was just easier to wait for the replacement part.



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Discussion Starter #38
Quick recap:
The compressor removal isn’t anything hard in the pre-LP cars. No special tools and NO NEED TO REMOVE ANYTHING ELSE! I’m writing this because I found some posts where people were removing the oil pump!

I obviously took my sweet time to do the swap but it wouldn’t take more than 1 hour to remove the old one and put the new one, it really isn’t that hard!

I also removed the dryer which is located in front of the rear tire. To access that you need to remove the driver side rear fender liner.



All in all you can repair the car with a little bit of elbow grease and under $500 in cost for OEM parts.


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Well done man! I'll be logging this thread mentally for future reference. Also, thanks for the excellent a/c troubleshooting guidelines wrex.
 

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Well done man! I'll be logging this thread mentally for future reference. Also, thanks for the excellent a/c troubleshooting guidelines wrex.
Of course!

Most of the parts on the list I posted are also the same parts for the R8, if that helps to source through Audi.


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