CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
2.8
Assembly overview - fuel rail
1 - Injection valve
❑ With combustion cham‐
ber ring seal (Teflon ring
seal): always renew
❑ Renew O-rings
❑ Ensure correct installa‐
tion position
❑ Removing and installing
⇒ page 481
2 - Support ring
3 - Fuel rail
❑ Removing and installing
⇒ page 480
4 - High-pressure pump
❑ With fuel pressure regu‐
lating valve - N276- .
❑ An electric fuel pump
(fitted in fuel tank) sup‐
plies fuel to the mechan‐
ical high-pressure pump
at a pressure of approx.
6 bar.
❑ When installing the
high-pressure pump,
ensure that no dirt en‐
ters the fuel system
❑ The fuel system must
not be under pressure
when installing the high-
pressure pump; proce‐
dure for reducing fuel
pressure ⇒ page 278
❑ Install fuel lines free of
stress.
❑ Removing and installing
⇒ page 491
❑ Assembly overview - high pressure pump ⇒ page 490 .
5 - Roller tappet
6 - Fuel pressure regulating valve - N276-
7 - Bolts for high-pressure pump
❑ Renew
❑ M6 thread = 8 Nm + 90°
❑ M8 thread = 20 Nm.
8 - Connection for fuel supply line
❑ Counter-hold connection when loosening union nut.
❑ If the union nut or the connection is detached, the connection must be renewed.
❑ 40 Nm
9 - Union nut of fuel pressurisation line
❑ Counter-hold connection when loosening union nut.
❑ If the union nut or the connection is detached, the connection must be renewed.
❑ 27 Nm
472
Rep. gr.24 - Mixture preparation - injection
CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
10 - Air flow control flaps
11 - Seal
❑ Renew
12 - Intake manifold
13 - Vacuum unit for air flow control flaps
❑ Checking ⇒ page 496
14 - Throttle valve module - J338- , throttle valve drive for electric throttle operation - G186-
❑ Throttle valve drive angle sender 1 for electric throttle - G187- and throttle valve drive angle sender 2 for
electric throttle - G188-
❑ After renewing throttle valve module - J338- it must be reprogrammed to engine control unit - J623-
⇒ Vehicle diagnostic tester via “Guided Functions”
15 - Bolts for intake manifold
❑ Pre-tighten to 3 Nm and tighten to 9 Nm
16 - Intake manifold flap potentiometer - G336-
17 - Fuel pressure sender - G247-
❑ 27 Nm
❑ Lubricate thread with clean engine oil
❑ Checking ⇒ page 493
❑ Removing and installing ⇒ page 486
Other specified torques
Further specified torques can be found at end of chapter entitled
“Disconnecting fuel rail from intake manifold” ⇒ page 480 .
2.9
Removing and installing intake manifold
with fuel rail
If intake manifold is renewed, intake manifold flap potentiometer
- G336- must be adapted to engine control unit - J623- using a
vehicle diagnostic tester .
2. Injection system
473
2024 VW Passat Owner's Manual
VW Passat B7 Service & Repair Manual
VW Passat B6 Service & Repair Manual
