audi Workshop Repair Guides

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Customer Interest for Heater Control Valve:|808705|Page 2012 > < Coolant Temperature Sending Unit|Page 2006
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Heater Control Valve: Customer Interest
A/C - Heater, Loss of Engine Coolant

Number:

Group:

87-05

80

December 28, 1987

Climate Control
Applies To:

ALL 5000 MODELS       1984-1987

Subject:

Engine Coolant - Loss of Fluid 

Cause:

Insufficient seal of O-ring in heater valve.

Production Change:

Improved O-ring material (EPOM).

As of:

December 1986 VIN: 44_HN079729

Service Solution:

Replace part, new P/N 431 819 809A.

Customer Interest for Heater Control Valve:|808705|Page 2012 > < Coolant Temperature Sending Unit|Page 2006