Checking condensation drain hose: Audi A3

🧭 Before you start

Fits: Audi A3 (8V, 2012–2020); platform code 85

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• Risk of airbag control unit malfunctioning due to corrosion in electrical connector.Cover or seal off connector for airbag control unit to prevent the ingress of moisture. — Cover airbag control unit (3).
• Retainers (arrows) at condensation drain hose must be properly engaged (pre-tensioned) in body opening in floor panel (1) (illustration shows version "“A”").
• If the bracket with the condensation drain hose is properly positioned in the body opening and at the connection of the heater and air conditioning unit, the condensation drain hose must be checked for dirt.

📋 Procedure

1. Remove centre console General body repairs, interior68Centre console; Removing and installing centre console.
2. ⚠ Risk of airbag control unit malfunctioning due to corrosion in electrical connector.Cover or seal off connector for airbag control unit to prevent the ingress of moisture. — Cover airbag control unit (3).
3. Carefully fold back floor covering in vicinity of condensation drain hose until hose is visible.
4. Retainers (arrows) at condensation drain hose must be properly engaged (pre-tensioned) in body opening in floor panel (1) (illustration shows version "“A”").
5. Check that condensation drain (3) is seated firmly at connection of heater and air conditioning unit (1).

6. If the bracket with the condensation drain hose is properly positioned in the body opening and at the connection of the heater and air conditioning unit, the condensation drain hose must be checked for dirt.
7. Remove condensation drain hose .
8. Check distance between condensation drain opening (1) and heat shield (3).
9. Check for dirt in condensation drain of air conditioning unit and clean with a piece of wire if necessary.
10. Check temperature of air flowing out of evaporator under usage conditions described by customer or with the following settings on operating unit:
11. Make the following settings on the operating unit (air conditioning system control unit J301):
12. Make the following settings on the operating unit (Climatronic control unit J255):
13. Open dash panel vents.
14. If measured value of evaporator output temperature sender G263 is too low (at ambient temperature above 0 °C, colder than 0 °C for lengthy period) or too high (above e.g. 10 °C although air conditioner is functioning properly), observe notes on checking cooling output .

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