Volkswagen Golf Service & Repair Manual: Ultrasonic air conditioner cleaning unit -VAS 6189A

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 ...

Spraying the evaporator with the suction feed spray-gun -V.A.G 1538- and spray lance

Spray the evaporator with Contra Sept directly using a spray lance (approx. 10 bar). Contra Sept neutralises microbes and bacteria directly at the evaporator. ...

Other materials:

Assembly overview - bumper cover
  Note Minor differences may be encountered in respect of bumper cover, depending on vehicle model. 1 -  Bumper cover Material PP/EPDM Removing and installing → Chapter 2 -  Guide bracket Lef ...

Cigarette lighter -U1-
The following descriptions apply to the rear left cigarette lighter -U3-, rear right cigarette lighter -U7-, rear cigarette lighter -U9-, 12 V socket 2 -U18-, 12 V socket 3 -U19-, 12 V socket 4 -U20-, cigarette lighter 2 -U25- and 12 V socket 5 -U26- so ...

Removing and installing auxiliary heater bracket
Removing –  Switch off electrical consumers. –  Switch off auxiliary and supplementary heater and switch off ignition. –  Remove auxiliary heater →  ...