Servicing Climatronic - 2nd evaporator — VW
Servicing Climatronic - 2nd evaporator on VW: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
Vehicles ▸08.98
Note:
Parts marked with an * can only be serviced by specially equipped service workshops, as refrigerant must be evacuated with Service station V.A.G 1885.
2nd evaporator*
2nd evaporator temperature sender -G153-
Checking: self diagnosis using V.A.G 1551
In event of 2nd evaporator temperature sender -G153- failure: continued operation assuming value of +10°C
Inserted into 2nd evaporator
Water drain pipe
Grommet
Lip valve
Blower for 2nd evaporator -V20-
Checking: self diagnosis using V.A.G 1551
Controlled via blower relay -J323- => Page
87-59
, item
6
Protected via fuse -S120-, => Page
87-58
, item
3
Removing: first remove D pillar trim, right
=> General body repairs, interior; Repair group 70; Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
General body repairs, interior
Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
Refrigerant circuit solenoid valve
-N43-*
Checking: self diagnosis using V.A.G 1551
Expansion valve for rear evaporator*
Blower control unit for 2nd evaporator -J349-
Task: precisely controls 2nd evaporator blower output via voltage
Air duct
Removing: First remove D pillar trim, right
=> General body repairs, interior; Repair group 70; Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
General body repairs, interior
Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
Vehicles 09.98 ▸
Note:
Parts marked with an * can only be serviced by specially equipped service workshops, as refrigerant must be evacuated with Service station V.A.G 1885.
2nd evaporator*
2nd evaporator temperature sender -G153-
Checking: self diagnosis using V.A.G 1551
In event of 2nd evaporator temperature sender -G153- failure: continued operation assuming value of +10°C
Inserted into 2nd evaporator
Water drain pipe
Grommet
Lip valve
Blower for 2nd evaporator -V20-
Checking: self diagnosis using V.A.G 1551
Controlled via blower relay -J323- => Page
87-59
, item
6
Protected via fuse -S120-, => Page
87-58
, item
3
Removing: first remove D pillar trim, right
=> General body repairs, interior; Repair group 70; Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
General body repairs, interior
Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
Refrigerant circuit solenoid valve
-N43-*
Checking: self diagnosis using V.A.G 1551
Expansion valve for rear evaporator*
Blower control unit for 2nd evaporator -J349-
Task: precisely controls 2nd evaporator blower output via voltage
Air duct
Removing: First remove D pillar trim, right
=> General body repairs, interior; Repair group 70; Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
General body repairs, interior
Removing D-pillar trim (vehicles with ventilated or air conditioned passenger compartment)
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.