5 Series E60 520d (N47) SAL
-
Replace the reservoir and fill it with fluid.
-
Leave the engine running at idle speed for approx. 5 min. and flush the steering system while it is in the
straight-ahead position.
-
In vehicles equipped with Servotronic, then disconnect the converter and, with the engine running and the
vehicle standing on its wheels, turn the steering wheel from the straight-ahead position through 180
°
a total
of 10 times. (The steering resistance caused by the vehicle standing on its wheels is necessary in order to
build up pressure in the ZHL).
6.
Check whether the following components are damaged, stiff, corroded, worn, have play, are worn out: ball joints,
McPherson strut mounts, steering shaft bearings, universal joints of the steering shaft, track rod joints, flexible
wheel suspension joints, control arm bearings, tension rod bearings/rubber bushings, anti-roll bar bearings,
pendulum supports, ball joints on the rack, rubber covers and gaiters. If necessary, replace components.
7.
The system is leaking, sucking in air, making sucking noises and the fluid is foaming in the reservoir. Locate the
leak and repair, fill and bleed the system.
(See Repair Instructions 32 13 006).
8.
The delivery pressure of the hyraulic pump is too low or is irregular. Check the nominal pressure of the pump
and replace the pump if necessary.
(See Technical Data/Repair Instructions 32 41 009).
9.
If points 1 - 8 are OK: the fault may be in the steering box. Replace the steering box.
Complaint:
Noises from steering while driving straight ahead (without moving steering) (ZHL)
1.
Check whether all relevant threaded chassis and suspension joints and steering components are fitted securely
and tighten if necessary.
(For tightening torques, see Technical Data.)
2.
Check the drivebelt for residues of coolant and oil and replace if necessary.
Important!
Always replace the drivebelt if it is soiled with hydraulic fluid.
(See Repair Instructions 11 28 010).
3.
Check the fluid level in the reservoir. A definite loss of oil indicates there may be a leak or leaks in the steering
system. Check the steering system for leaks and repair, fill and bleed the system if necessary.
(See Repair Instructions 32 13 006).
4.
Check whether the pump mount is fitted correctly and adjust if necessary.
5.
The lines have not been run correctly. A line has been incorrectly clamped or is kinked; lines are making contact
with each other or with other vehicle parts. Adjust the run of the line(s).
6.
The system is leaking, sucking in air, making sucking noises and the fluid is foaming in the reservoir. Locate the
leak and repair, fill and bleed the system.
(See Repair Instructions 32 13 006).
Complaint:
Noises from steering when turning into curve (ZHL)
1.
A hissing noise when full lock is reached is a characteristic of the design of the steering system. There is no
remedy.
2.
Check the drivebelt for residues of coolant and oil and replace if necessary.
Important!
Always replace the drivebelt if it is soiled with hydraulic fluid.
(See Repair Instructions 11 28 010).
3.
Check the fluid level in the reservoir. A definite loss of oil indicates there may be a leak or leaks in the steering
system. Check the steering system for leaks and repair, fill and bleed the system if necessary.
SI Aid to Diagnosing the Steering System
BMW AG - TIS
23.01.2013 15:37
Issue status (12/2007) Valid only until next DVD is issued
Copyright
Page - 5 -
