Mechanical Diagrams

Engine Compartment Fuel Hoses, Connection Diagram

CAUTION: When installing fuel lines and hoses, ensure there is clearance to other components or to body. Contact can cause leaks.







1 - Return line
- To fuel tank
- Blue or with blue marking
- Ensure seated tightly
2 - Supply line
- From fuel tank
- White or with white markings
- Ensure seated tightly
3 - Fuel rail
- For cylinder bank 2
4 - Fuel cooler
5 - Test connection
- For cylinder bank 1 Tighten sealing plug to 27 Nm
- Not available on all vehicles
6 - Fuel rail
- For cylinder bank 1
7 - Tandem pump
- For cylinder bank 1
- With vacuum pump
- Tandem and fuel pump, checking
- Tandem and fuel pump, removing and installing
8 - Fuel Temperature Sensor G81
- For cylinder bank 1
9 - Fuel filter
- For cylinder bank 2
- Tandem and fuel pump, checking
- Tandem and fuel pump, removing and installing
11 - Fuel Temperature Sensor 2 G248
- For cylinder bank 2
12 - Test connection
- For cylinder bank 2
- Tighten sealing plug to 27 Nm
- Not available on all vehicles



Engine Compartment Fuel Hoses, Connection Diagram

CAUTION: When installing fuel lines and hoses, ensure there is clearance to other components or to body. Contact can cause leaks.







1 - Test connection
- For cylinder bank 2
- Tighten sealing plug to 27 Nm
- Not available on all vehicles
2 - Fuel supply line
- White or with white markings
- Ensure seated tightly
3 - Fuel return line
- Blue or with blue marking
- Ensure seated tightly
4 - Fuel line
- Secured to intake manifold of cylinder bank 2
5 - Fuel rail
- For cylinder bank 2
6 - Test connection
- For cylinder bank 1
- Tighten sealing plug to 27 Nm
7 - Fuel rail
- For cylinder bank 1
8 - Tandem pump
- For cylinder bank 1
- With vacuum pump
- Tandem and fuel pump, checking
- Tandem and fuel pump, removing and installing
- Must not be disassembled
9 - Fuel Temperature Sensor G81
- For cylinder bank 1 and 2
10 - Fuel Pump (FP)
- For cylinder bank 2
- Tandem and fuel pump, checking
- Tandem and fuel pump, removing and installing
- Must not be disassembled