Removing And Installing Vacuum Pump (2.8 Ltr. And 3.2 Ltr. Petrol Engine) - Audi A8 2003 Workshop Manual

11.7 Removing and installing vacuum pump
(2.8 ltr. and 3.2 ltr. petrol engine)
Removing
– Pull off front engine cover panel -arrows-.
Caution
Take care not to damage the vacuum hose. The vacuum hose
must be renewed if it is damaged.
– Unclip vacuum line leading to air cleaner at vacuum pump
housing.
– Disconnect vacuum hose -1- from vacuum pump.
– Remove bolts -arrows- and take off vacuum pump.
Installing
Installation is performed in reverse sequence; note the following:
Note
Renew O-rings
♦
Secure all hose connections with the correct type of hose clips
♦
(same as original equipment) ⇒ Electronic parts catalogue .
– Set drive lug of vacuum pump -1- so it engages in symmetrical
slot in camshaft when vacuum pump is installed -arrows-.
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Audi A8 2003 ➤
Brake system - Edition 03.2013
11. Vacuum pumps for brake servo
131