Steering: Service and Repair

Power steering/fluid circuit

General notes
There is no provision for servicing the vane pump. If a malfunction occurs, establish the cause by means of the pressure test and leak test. Replace vane pump if it is malfunctioning.

Notes:
^ If reservoir fluid level is low then check steering system for leaks.
^ In the case of leaks at the line connections first tighten connections and wipe dry then recheck for leaks.
^ Pumps supplied as replacement parts are not filled with oil. Therefore it is essential to fill the pump with hydraulic oil G002 000 and to rotate pump by hand, otherwise the pump may be damaged or be noisy during operation.
^ Type of oil. hydraulic oil G 002 000





The hydraulic fluid circuit on right-hand drive vehicles is the same as on lefthand drive vehicles, except for the fact that the hydraulic lines are extended from left to right on the power steering gear. and the pressure linepansion hose bolted joint at the side member.
When fluid circuit has been opened always:
^ Check all unions for leaks, start engine and perform visual inspections.
^ Checking fluid level.
1 - Power steering gear
2 - Seal
^ Always replace
3 Expansion - hose
^ Routed to power steering gear
4 - Banjo bolt, 40 Nm (30 ft. lbs.)
^ With integrated non-return valve
5 - Seal
^ Always replace
6 - Banjo bolt, 50 Nm (37 ft. lbs.)
7 - Return hose
^ Routed to power steering gear
8 - Reservoir
9 - Hose clamp
10 - Hose clamp
11 - Bonded rubber bushing
12 - Retaining strap
^ Installation position:
^ Closed rubber insert faces hose
13 - Retainer
14 - Hex nut, 5 Nm (44 inch lbs.)
15 - Return hose
^ Fluid cooler reservoir
16 - Combi bolt, 10 Nm (7 ft. lbs.)
17 - Fluid cooler
^ Two versions with different line routing
18 - Vane pump
19 - Seal
^ Always replace
20 - Banjo bolt, 50 Nm (37 ft. lbs.)
21 - Suction hose
22 - Banjo bolt, 50 Nm (37 ft. lbs.)
23 - Radiator
24 - Strainer for reservoir
^ Use solvent to clean
25 - Cap with dip stick