Coolant Pump And Thermostat - Exploded View - Audi A8 2003 Workshop Manual

Audi A8 2003 ➤
8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
– Pull off rubber seal -1- on plenum chamber covers.
– Detach plenum chamber cover -2-.
Note
Disregard -item 3-.
– Open bleeder screws -arrows-.
– Fill up with coolant until it flows out at bleeder holes in coolant
hoses.
– Close the bleeder screws.
– On vehicles with auxiliary heater, switch heater on (for about
30 seconds) and then off again.
– Tighten filler cap on expansion tank.
– Start engine.
– Set heater/air conditioner on both sides to "HI".
– Run the engine for 3 minutes at 2000 rpm.
– Allow the engine to run at idling speed until the two large cool‐
ant hoses at main radiator become warm.
– Run the engine for 1 minute at 2000 rpm.
– Switch off ignition and allow engine to cool down.
– Check coolant level.
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
• The coolant level must be at the MAX marking when the en‐
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
gine is cold.
with respect to the correctness of information in this document. Copyright by AUDI AG.
• The coolant level can be above the MAX marking when the
engine is warm.
Tightening torques
Component
Drain plug to coolant pipe
Bleeder screw to connection for exhaust gas re‐
circulation
1.3

Coolant pump and thermostat - exploded view

Note
The arrow markings on coolant pipes and on ends of hoses must align.
220
Rep. gr.19 - Cooling
Nm
15
9