Climatronic Components In Passenger Compartment, Servicing
Climatronic Components In Passenger Compartment, Servicing
CAUTION:
Before beginning repairs:
- Switch off all electrical consumers.
- Switch off ignition.
- Remove ignition key from ignition switch.
NOTE:
- System components marked with an asterisk * can only be serviced or replaced after discharging refrigerant system. Use Kent Moore ACR4 or equivalent.
- Before carrying out any work on the A/C refrigerant system, refer to A/C refrigerant system safety measures.
1. Side window air outlet
2. Air outlets
- Golf and Jetta have different types
3. Defroster air outlet
4. Sunlight photo sensor -G107-
- Function: Controls temperature flap and fresh air blower speed depending on light intensity
- In event of failure: Climatronic Control Module -J255- assumes fixed value
- Checking use VAS 5051 in mode "Guided Fault Finding"
5. Instrument panel temperature sensor -G56- with interior temperature sensor fan -V42-
- Control unit -J255-, A/C control head -E87- and dash panel temperature sensor -G56- with temperature sensor blower -V42- are integrated into a single unit which cannot be serviced separately.
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Function: Temperature sensor controls temperature flap and fresh air blower depending on temperature
- In event of -G56- malfunction, operation continues assuming value of +24 degrees (75 degrees F)
- Replacing and adjusting:
- Code Climatronic control module, function 07 and then initiate Basic setting, function 04 using VAG 1551 Scan Tool (ST), Climatronic, OBD.
6. A/C control head unit -E87-
- Climatronic control unit -J255-, A/C control head -E87- and instrument panel temperature sensor -G56- with interior temperature sensor blower -V42- are integrated into a single unit and cannot be serviced separately.
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Functions
- Replacing and adjusting:
- Code Climatronic control module, function 07 and then initiate Basic setting, function 04 using VAG 1551 Scan Tool (ST), Climatronic, OBD.
7. Intermediate duct
8. Instrument panel cross member
- Loosening and tightening
9. Dust and pollen filter
- With activated charcoal filter
10. Fresh air intake duct temperature sensor -G89-
- Function: Temperature sensor controls temperature flap and fresh air blower depending on temperature
- In event of malfunction: outside temperature sensor -G17- value is used instead.
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Replacing:
- Remove glove box.
- Reach behind heating and A/C unit.
- Turn temperature sensor 90 degrees and pull out.
- Lubricate seal with oil when installing.
NOTE:
If it is not possible to remove sensor as described above:
- Remove instrument panel.
- Loosen instrument panel cross member
- Partially remove heating and A/C unit.
11. Air flow flap motor -V71-
- Also operates fresh and recirculating air flap
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Replacing and adjusting:
- Initiate Basic setting, function 04 using VAG 1551 Scan Tool (ST), Climatronic, OBD.
12. Fresh air blower -V2-
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Removing: see Fig. 4
13. Fresh air blower control module -J126-
- Function: Controls fresh air blower speed depending on voltage signal
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Replacing see Fig. 3
14. Heating and A/C unit*
- With heater core
- With evaporator
15. Central air flap motor -V70-
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Replacing and adjusting:
- Initiate Basic setting, function 04 using VAG 1551 Scan Tool (ST), Climatronic, OBD.
16. Temperature regulator flap motor -V68-
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Replacing and adjusting:
- Initiate Basic setting, function 04 using VAG 1551 Scan Tool (ST), Climatronic, OBD.
17. Center trim
18. Climatronic control module -J255-
- Climatronic control module -J255-, A/C control head -E87- and instrument panel temperature sensor -G56- with interior temperature sensor blower -V42- are integrated into a single unit and cannot be serviced separately.
- Checking or use VAS 5051 in mode "Guided Fault Finding"
- After replacing:
- Always code Climatronic control module, function 07 and then initiate Basic setting, function 04 using VAG 1551 Scan Tool (ST).
19. Footwell air outlet
- Passenger side only
20. Rear footwell air duct
21. Gasket
22. Connecting duct
- With driver's side footwell air outlet
23. Footwell air outlet temperature sensor -G192-
- Function: Controls air distribution defrost/footwell and fresh air blower speed depending on air outlet temperature measurement.
- Emergency running in event of failure: Continued operation assuming value of +80 degrees C (176 degrees F)
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Removing and installing see Fig. 1
24. Footwell/defroster flap motor -V85-
- Checking use VAS 5051 in mode "Guided Fault Finding"
- Replacing and adjusting:
- Initiate Basic setting, function 04, Climatronic, OBD.
25. Heater core*
- Always replace coolant after removal or replacing
- Heating and A/C unit, removing
26. Heater core/bulkhead seal*
- Installation position, Fig. 2
27. Defroster duct
- Replacing:
- Remove instrument dash panel
- Loosen instrument panel cross member, Fig. 5.
- Note installation position, Fig. 2
Fig. 1 Sender for outlet temperature, floor outlet -G192-, removing and installing
Removing
- Remove trim under the steering column.
- Disconnect electrical connector from floor outlet temperature sender -G192-.
- Turn temperature sender -1- 90 degrees and take out from housing -2-.
Installing
Lubricate seal with oil when installing.
Fig. 2 Sunlight photo sensor -G107, removing
- Unclip sunlight photo sensor -1- with screwdriver.
Fig. 3 Control module for fresh air blower -J126-, removing
- Remove glove box.
- Disconnect electrical connector -2- and remove screw -3-.
- Remove -J126-.
Fig. 4 - Fresh air blower -V2-, removing
1 Heating and ventilation unit
2 Fresh air blower -V2-
3 Cover
4 Screws
5 Cover
Removing
- Remove glove box.
- Remove plastic foam cover -3- below A/C unit.
- Remove bolts -1-.
- Remove cover -2-.
- Disconnect electrical connector -1- for fresh air blower.
- Remove fresh air blower -2- downward.