Volkswagen Golf Service & Repair Manual: Smells from heater and air conditioner unit

Possible complaints about refrigerant circuit

  Note The air conditioning system is operating correctly if the air emerging from the vent on the dashboard is at a temperature of 7oC or less. ...

Is the smell coming from evaporator or the heat exchanger?

Fishy smell –  Due to leak in engine's cooling system or in heat exchanger of heater and air conditioner unit.   N ...

Other materials:

Removing and installing output module for headlight -J667-/-J668-
  WARNING Risk of death due to high voltage! Risk of injury and environmental pollution! Observe operation and safety notes for gas discharge bulbs → Chapte ...

Displays, warning and indicator lamps
Fig. 166 In the instrument cluster display: ACC deactivated temporarily; vehicle detected ahead, time interval set Fig. 167 In the instrument cluster display: ACC active: vehicle detected ahead, time interval is being set First read and observe the introductory information and safety warni ...

Removing and installing inlet camshaft oil seal, pulley end, engine codes CPTA, CHPA, CZEA, CZDA
Special tools and workshop equipment required     Assembly tool -T10478 B- Removing –  Detach toothed belt from camshafts → Chapter ...