Audi A8 2003 Workshop Manual page 213

8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
– Unscrew coolant line from cylinder head (left-side) -arrow-.
– Detach hose -3- from pressure control valve for crankcase
breather system.
– Remove bolts -1- and -2-.
– Take out pressure control valve for crankcase breather sys‐
tem.
Installing
Installation is carried out in the reverse order; note the following:
Note
Renew seals and O-rings.
♦
Secure all hose connections with the correct type of hose clips
♦
(same as original equipment) ⇒ Electronic parts catalogue .
– Install exhaust gas recirculation cooler with change-over flap
⇒ page 320 .
– Install high-pressure pump ⇒ Rep. gr. 23 .
– Install intake manifold (top section) ⇒ Rep. gr. 23 .
Note
Do not reuse coolant.
– Fill cooling system ⇒ page 216
Tightening torques
Component
Pressure control valve for crankcase breather
system to mounting plate
Banjo bolt to cylinder head
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Nm
6
15
1. Removing and installing parts of lubrication system
Audi A8 2003 ➤
207