Audi A8 2003 Workshop Manual page 118

Audi A8 2003 ➤
8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
– Remove bolts -1 ... 8- and remove timing chain cover (bottom).
– Press out crankshaft oil seal (rear) from timing chain cover.
Installing
Note
Renew gaskets, seals and O-rings.
♦
Secure all hose connections with the correct type of hose clips
♦
(same as original equipment) ⇒ Electronic parts catalogue .
Fit all cable ties in the original positions when installing.
♦
– Remove old sealant from grooves in timing chain covers and
from sealing surfaces.
WARNING
Wear safety goggles.
– Clean old sealant from grooves -arrow- in cylinder head gas‐
kets.
Note
With the cylinder head installed the grooves in the cylinder head
gasket are only half visible.
– Remove remaining sealant on timing chain covers -1- and cyl‐
inder block / cylinder head using rotating plastic brush or
similar.
– Clean sealing surfaces; they must be free of oil and grease.
112
Rep. gr.15 - Cylinder head, valve gear
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