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Replacing fuel low-pressure sensor on engine BMW S55

13 53 594


Disconnect negative battery terminal (risk of fire due to short circuit on dismantling).
Electric fuel pump starts up automatically each time door is opened!
Carry out installation work on fuel system only with coolant temperature below 40 °C.
Wear safety goggles.


Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
Introduced contaminants can cause malfunctions in the system!
Do not allow any dirt particles or foreign bodies to get into the system.
Remove all traces of dirt before removing lines or separate components.
Use only fluff-free cloths.
Seal all fuel system openings with protective caps or plugs.


Fuel escapes when fuel lines are detached.
Catch and dispose of escaping fuel in a suitable container.
Observe country-specific waste disposal regulations.


Release screws (1) under cable channel.

Unlock connector (1) and remove.
Release fuel low-pressure sensor (2) and remove.


When releasing and tightening the sensor, brace against the AF of the low pressure line!

Close off low pressure line as necessary with a fitting plug from set of special tools 32 1 270 .

Installation note:
Check sealing ring of fuel low-pressure sensor and replace as necessary.


Install fuel low-pressure sensor (2) and tighten.
Tightening torque: 13 53 5AZ.
Attach and lock connector (1).
Connector (1) must snap audibly into place.

Tighten screws (1) under cable channel.
Tightening torque 13 62 6AZ.
Assemble engine.
Check fuel system for tightness.
Check function of DME.

This post was last modified on August 4, 2017, 2:05 pm

Categories: 13 Fuel system
Tags: BMWMlow-pressure sensors55
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