Overview - Components Outside Of Vehicle Interior

WARNING: This page is about a different variant/trim than selected.

All necessary information for servicing the heating can be found the A/C system. Refer to COMPONENT LOCATION OVERVIEW - COMPONENTS OUTSIDE OF VEHICLE INTERIOR .

NOTE:

Only a heating and A/C system is offered for the Audi TT with the exception of certain markets. Heating without an A/C system is only offered for certain markets.

Vehicles without an A/C system vary from those with an A/C system in the following components outside of the vehicle interior:

Courtesy of AUDI OF AMERICA, LLC

Condenser
- Not installed
Dryer Cartridge
- Not installed
A/C Compressor Regulator Valve -N280-
- Not installed
A/C Compressor
- Not installed along with the motor with another belt drive. Refer to RIBBED BELT, REMOVING AND INSTALLING .
High Pressure Side Service Connection
- Not installed
Refrigerant Circuit Pressure Sensor -G805-
- Not installed
Low Pressure Side Service Connection
- Not installed
Condensation Water Drain
- Checking. Refer to CONDENSATION WATER DRAIN HOSE, CHECKING .
- Removing and Installing. Refer to CONDENSATION WATER DRAIN HOSE, REMOVING AND INSTALLING .
  NOTE:
  The condensation water drain has no function due to the missing A/C system. If the condensation water drain is not installed correctly, moisture can get into the vehicle interior, or noises can occur when operating the heater.
  
  Depending on the vehicle version, a condensation water drain may not be installed. In this case, the openings in the underbody and the connection on the heater are sealed off with a plug.
Expansion Valve
- Overview. Refer to OVERVIEW - CONDENSER, A/C COMPRESSOR, REFRIGERANT LINES AND EXPANSION VALVE .
- There are no refrigerant lines installed. The connections on the expansion valve for the refrigerant lines are sealed with a closure cap.
  NOTE:
  If the connections for the refrigerant lines on the expansion valve are not sealed, there may be noises coming from the heater when operating the vehicle.
  
  Depending on the heater version, there may be no expansion valve installed. In this case, there is a foam piece installed in place of the expansion valve.