Necessary preliminary tasks

WARNING: This page is about a different car, the 2012 BMW 328xi, 2011 BMW 328xi, 2010 BMW 328xi, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Draw off and dispose of hydraulic fluid from fluid reservoir

N45, N46, M47T2:

Remove intake duct if necessary with gaiter

M57T2 335d:

Unclip coolant hose on coolant expansion tank

Release screw (1).

Tightening torque, see 32 41 1AZ in 32 41 PUMP AND OIL SUPPLY

NOTE: If necessary, raise and/or turn fluid reservoir in order to gain better access to hose clamps.

Fig 1: Removing Fluid Reservoir

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten hose clips.

Disconnect suction line and radiator return line from fluid reservoir.

Lift out fluid reservoir.

Installation:

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.