Test Requirements
WARNING: This page is about a different car, the 2021 Volkswagen Tiguan, 2020 Volkswagen Tiguan, 2019 Volkswagen Tiguan, 2018 Volkswagen Tiguan Limited, and 2018 Volkswagen Tiguan. However, it is still accessible from the selected car via links, so may be relevant.
- Radiator and condenser are clean (clean if necessary).
- The ribbed belt for the A/C compressor and alternator tensioned correctly.
- All air ducts, covers and seals are OK and installed correctly.
- The doors reach their end position.
- The engine is warm.
- Evaporator and heater not drawing in secondary air (at maximum fresh-air blower speed).
With engine running and A/C system set to maximum cooling output, pay attention to the following points:
- The fresh air blower is running.
- The coolant fan must be running or it must be switched on.
- The recirculation/fresh air door must be in the "recirculation" position.
- Ambient temperature is greater than 15 °C (59 °F).
- The A/C Evaporator Temperature Switch -E33- is installed correctly and its switch temperatures are correct.