Checking Fuel Pressure And Residual Pressure (Up To High-Pressure Pump) - Audi A8 2010 Workshop Manual

Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve) - Edition 12.2011
– 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)
– 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-
⇒ page 27 .
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi A8 2010 ➤
33
2. Injection system