Audi A8 2010 Workshop Manual page 27

Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve) - Edition 12.2011
11 - Bolt
❑ Tightening torque and sequence
12 - Bolt
❑ 2.5 Nm
13 - Retaining clip
❑ For fuel rail
14 - Threaded connection
❑ 40 Nm
15 - Fuel rail
16 - Gasket
❑ Renew
17 - Intake manifold (bottom section)
❑ Removing and installing
18 - Gasket
❑ Renew
19 - Support ring
❑ Make sure it is correctly seated
❑ Via this support ring, the fuel rail exerts the force which holds the injector in the cylinder head
20 - O-ring
❑ Renew
❑ Lubricate lightly with clean engine oil
21 - Spacer ring
❑ Renew if damaged
22 - Injector
Removing and installing
23 - Sealing element
❑ Renew
24 - Combustion chamber ring seal
❑ Renewing ⇒ „2.12 Removing and installing injectors", page 30
❑ Do not apply grease or use any other lubricants
25 - Seal
❑ Renew if damaged
❑ When renewing lever out with screwdriver
❑ Press in by hand
26 - Operating lever
❑ For vacuum unit
27 - Vacuum hose
❑ To intake manifold flap valve -N316-
28 - Vacuum unit
❑ For actuating intake manifold flaps
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Audi A8 2010 ➤
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2. Injection system