Rear Heating and A/C Unit A/C Refrigerant System Components, Servicing
Rear Heating And A/C Unit A/C Refrigerant System Components, Servicing
Special tools, workshop equipment and auxiliary items required
- VAG 1331 Torque wrench (or 5-50 Nm equivalent)
- Refrigerant recycling/recovery unit Kent-Moore ACR4 (or UL approved equivalent - VAS 6007A illustrated for reference only).
NOTE:
- Before carrying out any work on the A/C refrigerant system, refer to all CAUTIONS and WARNINGS in A/C refrigerant system safety measures.
- Evacuate refrigerant circuit using refrigerant recycling/recovery unit Kent-Moore ACR4 (or UL approved equivalent).
- O-rings used on R-134a systems may be red, green, violet or black.
- Always plug open refrigerant line connections to prevent dirt and moisture contamination.
1 - Refrigerant line
- High pressure side
- Behind left rear wheel housing cover
2 - O-ring
- Always replace
- 9.5 mm; 2.5 mm
3 - O-ring
- Always replace
- 13.7 mm; 2.5 mm
4 - Socket head bolt M 10x84
- 12 Nm ±1
- Qty..:2
5 - Refrigerant line
- Low pressure side
- Behind left rear wheel housing cover
6 - Socket head bolt M6x35
- 3.5 Nm ± 0.5
7 - Socket head bolt M6x35
- 3.5 Nm ± 0.5
8 - Socket head bolt M6x70
- 3.5 Nm ± 0.5
9 - Socket head bolt M6x70
- 3.5 Nm ± 0.5
10 - O-ring
- Always replace
- 13.7 mm; 2.5 mm
11 - O-ring
- Always replace
- 9.5 mm; 2.5 mm
12 - Refrigerant line
- Low pressure side
- Under vehicle
13 - Refrigerant line
- High pressure side
- Under vehicle
14 - Bolt M6x16
- 8 Nm ±1.2
15 - Bracket
16 - Bolt M6x16
- 8 Nm ±1.2
17 - Spacer bracket
18 - Socket head bolt M6x35
- 3.5 Nm ±0.5
19 - Socket head bolt M6x35
- 3.5 Nm ±0.5
20 - Damper
21 - O-ring
- Always replace
- 13.7 mm; 2.5 mm
22 - Socket head bolt M8x28
- 12 Nm±1
23 - Refrigerant line
- High pressure side
- Behind left front wheel housing cover
24 - O-ring
- Always replace
- 13.7 mm; 2.5 mm
25 - Socket head bolt M8x28
- 12 Nm ±1
26 - Refrigerant line
- Low pressure side
- Behind left front wheel housing cover
27 - Coolant pipe
- To rear heater core
- Behind left rear wheel housing cover
28 - Coolant pipe
- To rear heater core
- Behind left front wheel housing cover
29 - Coolant hose
- To rear heater core
- Behind left rear wheel housing cover
30 - Coolant hose
- To rear heater core
- Behind left front wheel housing cover