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– Unscrew bolts -arrows- and bolt connection -1-.
– Unscrew union nuts -2- and -3- (counterhold threaded con‐
nection).
Note
Do not attempt to bend high-pressure pipe to a different shape.
Installing
Tightening torques
• ⇒ „2.7 Intake manifold (bottom section), fuel rail, injector - ex‐
ploded view“, page 22 .
• ⇒ „2.14 High-pressure pump - exploded view“, page 36 .
Note
♦
The connections of the high-pressure pipe must not be dam‐
aged.
♦
Do not attempt to bend high-pressure pipe to a different shape.
– First tighten union nut by hand until it makes contact, making
sure that high-pressure pipe is not under tension.
– Tighten union nut with torque wrench -V.A.G 1331- and tool
insert, AF 17 -V.A.G 1331/6- ; to do so, counterhold at hexagon
flats of threaded connection on fuel rail with an open-end
spanner.
– Do not tighten bolt for retainer until high-pressure pipe has
been tightened.
– Install supercharger ⇒ Rep. gr. 21 .
2.16 Removing and installing high-pressure
pump
Special tools and workshop equipment required
♦ Ratchet -V.A.G 1331/1-
♦ Socket insert AF 14, flared ring spanner -V.A.G 1331/8-
Audi A8 2010 ➤
Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve) - Edition 12.2011
2. Injection system 39
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