– Carefully pull engine cover panels away from retaining pins,
one after the other.
The vacuum pump is located in the rear of the engine compart‐
ment (right-side), as seen in the direction of travel.
– Unscrew bracket for fuel lines at high-pressure fuel pump.
– Unplug electrical connector -1- for high-pressure fuel pump.
– Unclip electrical wire from bracket -arrow-.
– Remove high-pressure fuel pump -2- ⇒ Rep. gr. 24 .
– Slacken ignition coil rail at bracket.
– Unplug connectors -arrows- for ignition coils.
– Carefully press ignition coil rail to one side.
– Unscrew lines at high-pressure pump and vacuum pump and
press to one side.
– Disconnect vacuum hose from vacuum pump at hose clip.
Note
On some models the vacuum hose is secured at the vacuum
pump with a bolt.
Caution
Take care not to damage the vacuum hose. The vacuum hose
must be renewed if it is damaged.
Audi A6 2005 ➤ , Audi A6 Avant 2005 ➤
Brake system - Edition 04.2019
12. Vacuum pumps for brake servo 171
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