Fuel Hoses In Engine Compartment, Connection Diagram

Diagnostic Procedures

Fuel Hoses in Engine Compartment, Connection Diagram

• Cylinder bank 1 is located in direction of travel, right.

• Cylinder bank 2 is located in direction of travel, left.





1 Return line

• to fuel tank

• blue or with blue marking

• check for secure seating

2 Supply line

• From fuel tank

• White or white marking

• check for secure seating

3 Fuel rail

• for cylinder bank 2

4 Cooling unit

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

• With vacuum pump

• for cylinder bank 1

8 Fuel Temperature Sensor (G81)*

• for cylinder bank 1

• checking --> [ Fuel Temperature Sensor, Checking ] Testing and Inspection

9 Fuel filter

10 Fuel Pump (FP)

• for cylinder bank 2

11 Fuel Temperature Sensor 2 (G248)*

• for cylinder bank 2

• checking --> [ Fuel Temperature Sensor, Checking ] Testing and Inspection

12 Test connection

• for cylinder bank 2

• Tighten sealing plug to 27 Nm.

• not available on all vehicles