Volkswagen Golf Service & Repair Manual: Is the smell coming from evaporator or the heat exchanger?
| – |
Due to leak in engine's cooling system or in heat exchanger
of heater and air conditioner unit. |
 Note
| If the fishy smell is weaker when the temperature is set to
“cold” or stronger when the temperature is set to “warm”, check
the heat exchanger for leaks. |
| Vapours from foot mats, retrospectively installed seat
covers etc. |
| – |
Due to accumulation of leaves, pine needles etc. in plenum
chamber. |
Note
| – |
Use water so that it cannot flow out of plenum chamber. |
Note
| Check water runoff points in plenum chamber. |
| Smell from heater and air conditioner unit |
Note
| Smells that can originate in heater and air conditioner unit
can be detected in fresh air mode and in recirculation mode. |
| – |
Due to too much condensation water in heater and air
conditioner unit |
Note
| Check the runoff points of condensation water
→ Rep. gr.87 as indicated in the vehicle-specific
repair manual. |
| – |
Due to an old or very dirty dust and pollen filter |
Note
| Check the dust and pollen filter
→ Rep. gr.80 as indicated in the vehicle-specific
repair manual. |
| – |
Due to deposits on the fins of the evaporator |
Note
| Clean the evaporator, using the ultrasonic air conditioner
cleaning unit -VAS 6189A-
→ Chapter or the suction feed spray-gun -V.A.G 1538-
and corresponding spray lance
→ Chapter. |
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The ultrasonic air conditioner cleaning unit -VAS 6189A-
must be placed in the front-passenger footwell and sprays the
agent Aero-Clean. Aero-Clean neutralises microb ...
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Ultrasonic air conditioner cleaning unit -VAS 6189A