13 53 570 Replacing pressure regulator on pressure accumulator of fuel injection system (M57TU, M57T2)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Read out fault memory of DDE control unit; if necessary, work through test schedules
Switch off ignition
Remove intake air manifold. See 11 61 050 REMOVING AND INSTALLING INTAKE PLENUM (M57T2/SCR) .

NOTE: Cover intake ducts.

IMPORTANT: Protect alternator against escaping fuel.
Cover alternator with suitable apparatus (risk of damage) .

Recycling:

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Disconnect connector (1).

NOTE: Grip at hexagon head (2) when removing pressure sensor.

Release hexagon screw connection (3) on pressure accumulator.

Installation:

Secure position of pressure regulator and grip at hexagon fitting (2).

Tighten down hexagon screw connection (3).

Fig 1: Identifying Hexagon Screw Connection On Pressure Accumulator

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening torque: 13 53 13AZ .

Now clear the fault memory.

Installation:

Pressure regulator may only be used once.

Positioning before final tightening!