Audi A8 2010 - Checking Fuel Pressure and Residual Pressure (up to High-Pressure Pump)

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– Fit parts from repair kit onto injector -1-:
2 - Spacer ring
3 - O-ring
4 - Support ring
5 - Sealing element
– To make it easier to install injector in fuel rail, lubricate new O-
ring lightly with clean engine oil before installing it.
Note
The combustion chamber ring seal -6- must not be lubricated.
– Use assembly tool -T10133/9- to insert injector as far as it will
go into hole in cylinder head; note correct installation position.
• Electrical connector of injector must engage in recess in cyl‐
inder head.
Note
It should be possible to insert the injector easily. If necessary wait
until the combustion chamber ring seal has contracted sufficient‐
ly.
Perform further installation in reverse order, paying attention to
the following:
– Install intake manifold (bottom section) ⇒ page 27 .
– Install supercharger ⇒ Rep. gr. 21 .
2.13 Checking fuel pressure and residual
pressure (up to high-pressure pump)
Special tools and workshop equipment required
♦ K-Jetronic pressure tester -V.A.G 1318-
Audi A8 2010 ➤
Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve) - Edition 12.2011
2. Injection system 33