TT Roadster L4-2.0L Turbo (BPY) (2008)
Fuel Rail: Locations
Fuel Rail Assembly Overview
1
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Radial Adjustment
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Replace if damaged
2
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Fuel Injector
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With combustion chamber seal (Teflon seal), always replace
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Replace O-rings
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Note correct installation position
3
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Support Ring
4
-
Fuel Rail
5
-
Fuel Pressure Sensor G247
-
22 Nm
-
Tighten connections to 30 Nm
6
-
Low Fuel Pressure Sensor G410
7
-
Fuel Pressure Regulator Valve N276
8
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Mechanical Single-Piston High-Pressure Pump
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With Fuel Pressure Regulator Valve N276 and Low Fuel Pressure Sensor G410
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An electrical fuel pump, located in the fuel tank, supplies fuel to the mechanical high-pressure pump at a pressure of approximately 6 bar.
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When installing high-pressure pump, make sure that no dirt enters the fuel system.
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The fuel system must be pressureless to install the high-pressure pump, releasing fuel pressure.
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Do not install fuel lines with tension
9
-
EVAP Canister Purge Regulator Valve N80
10
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Throttle Valve Control Module J338, Throttle Drive for Electronic Power Control G186,
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Throttle Drive Angle Sensor 1 (for Electronic Power Control (EPC)) G187 and Throttle Drive Angle Sensor 2 (for Electronic Power
Control (EPC)) G188
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After replacing the throttle valve control module J338, it must be adapted to the engine control module J623 see vehicle diagnosis and
service system VAS 5052 "Guided Function".
11
-
Intake Air Temperature Sensor 2 G299
-
5 Nm
12
-
Intake Manifold Bolts
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9 Nm