Fuel supply
91
12.2. Fuel pump
The DP40 fuel pump is a combined delivery, metering and a shut-off sys-
tem and is subject to certain installation criteria (see Fig. 26 and Fig. 28).
12.2.1.
Installation location
The fuel pump and fuel lines must not be installed within the range of ra-
diated heat from hot vehicle parts. A heat shield must be used if necessary.
The fuel pump must be mounted outside the vehicle.
Mounting the fuel pump on the heater (See Fig. 27, "Mounting location
(A) for fuel pump on heater"), is only allowed if the length of the fuel line’s
suction side is not more than 1.4 m.
In case the length of the fuel line’s suction side is more than 1.4 m, the fuel
pump has to be installed separate from the heater. In this case, extend the
wiring harness for the fuel pump.
12.2.2.
Installation and attachment
The fuel pump installation position is limited as shown in Fig. 28 in order
to ensure effective automatic bleeding.
The fuel pump must be installed in the horizontal position (0 to 5º).
To reduce noise, it should always be installed with the vibration-damping
suspension.
Respect the direction of the fuel flow. The arrow on the pump needs to
point towards the heater.
Fig. 27: Mounting location (A) for fuel pump on heater
A
Fig. 28: Fuel pump DP40 installation position
0 to 5º
