volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel rail - exploded view > < Removing and installing air mass meterG70
Assembly overview - intake manifold
   
Assembly overview - intake manifold
1 - Screw for intake air temperature sender -G42-
q   5 Nm
2 - Intake air temperature sender -G42-
3 - Activated charcoal filter solenoid valve 1 -N80-
q   One unit with non-return valve
q   To remove and install, remove intake manifold
4 - Intake manifold
q   Removing and installing → Chapter
q   Specified torque of bolts → Item
5 - Vacuum unit for air flow control flaps
6 - Bolts for high-pressure pump
q   Renew.
q   M6 thread = 8 Nm + 90°
q   M8 thread = 20 Nm.
7 - Connecting piece for fuel supply line from fuel tank
8 - Fuel pressure regulating valve -N276-
9 - High-pressure pump
q   With fuel pressure regulating valve -N276-.
q   When installing the high-pressure pump, ensure that no dirt enters the fuel system
q   The fuel system must not be under pressure when installing the high-pressure pump; procedure for reducing fuel pressure → Chapter
q   Fuel pipe to fuel rail must be free of tension when installed.
q   Assembly overview - high pressure pump → Chapter.
10 - Roller tappet
q   May remain lodged in cylinder head when high-pressure pump is removed; it can be removed
11 - Union for high-pressure fuel line
q   Specified torque → Chapter.
12 - Fuel pipe to fuel rail
q   Fuel line must be free of tension when installed.
q   18 Nm
13 - Intake manifold flap air flow control valve -N316-
14 - Injectors
q   Renew O-rings
q   Ensure correct installation position.
q   Removing and installing → Chapter
15 - Non-return valve
q   Different versions, allocation → ETKA (electronic parts catalogue).
q   With activated charcoal filter system solenoid valve 1 -N80-, one unit.
16 - Intake manifold support
17 - Bolt for intake manifold support
q   23 Nm
18 - Securing nut for intake manifold support
q   10 Nm
19 - Bolts for throttle valve module -J338-
q   Qty. 4.
q   5 Nm
20 - Throttle valve module -J338-, throttle valve drive for electric throttle operation -G186-
q   Throttle valve drive angle sender 1 for electric throttle -G187- and throttle valve drive angle sender 2 for electric throttle -G188-
q   After renewing throttle valve module -J338- it must be reprogrammed to engine control unit -J623- → Vehicle diagnostic tester via „Guided functions“
q   Removing and installing → Chapter
q   Clean → Chapter.
21 - Seal
q   Renew
q   Lug of oil seal must lie in intended groove in intake manifold.

   

Fuel rail - exploded view > < Removing and installing air mass meterG70