A8L Quattro Sedan V8-4.2L (AUX) (2001)
Heater Core: Service and Repair
Heater Core on Driver-Side
Heater core, removing and installing
NOTE:
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From November 2000, a running change in production led to a modified A/C housing. Revised heater cores (version "2") and changed coolant
lines to heater cores are installed on this A/C housing. Changed heater cores have different dimensions, so that the fitting in the A/C housing also
had to be changed.
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The A/C housing with version "2" heater cores can be identified from the outside via the coolant lines to the heater core:
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The coolant lines for version "1" are inserted into the heater core from the front.
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Coolant lines -A- and -B- for version "2" are inserted into the heater core -C- from the side.
Special tools and equipment
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Hose clamps 3093 or 3094
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VAG1306 drip tray
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Compressed air gun, standard
Heater core of driver-side heating system, removing and installing