Removal and installation the transverse arm (BMW 5 Series E39)

Note: After installation, it is necessary to measure the parameters of the front axle.

Removal

Hang the engine and unscrew the fastenings of its supports.

Mark the position of the front wheels relative to the hubs with paint. This will allow the balanced wheel to be installed in its original position. When unscrewing the wheel bolts, the car should stand on its wheels. Raise the car from the front and remove the front wheels.



Remove the lower engine compartment cover.

Loosen the nuts securing the "arrow" and remove the transverse arm from the front axle beam.

Remove the control arm ball joint from the pivot bearing using a standard puller.

Installation

Before installing the transverse arm, clean and degrease the conical journal of the ball joint and the receiving hole in the pivot support.

Insert the ball joint, install washer "3", screw on a new self-locking nut "2" and tighten it to a torque of 80 Nm.

Screw the transverse arm to the front axle beam, do not tighten fastening "1".

Tighten the front wheels. Do not lubricate the wheel bolts. Position the wheels so that the marks made before removal match. Lower the car and tighten the wheel bolts crosswise to 100 Nm.



Place the vehicle in its normal position. To do this, the following prerequisites must be met:

• the car is on wheels;
• the front seats are in the middle position;
• each front seat has a load capacity of 68 kg;
• in the center of the luggage compartment there is a load weighing 21 kg;
• the fuel tank is filled to capacity with fuel.

Tighten the transverse levers to the front axle beam to the following torques: for a 6-cylinder engine - 81 Nm; for the 8-cylinder engine - 77.5 Nm.

Install the lower engine compartment cover.