BMW 7 Series: Replacing Pressure Line For Power Steering (From Steering Box To Junction)

WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin! RISK OF INJURY if oil comes into contact with eyes and skin!

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.

Close off line connections with seal plugs.

Recycling

Catch and dispose of hydraulic fluid in a suitable collecting vessel.

Necessary preliminary work

• Draw off and dispose of hydraulic fluid from oil reservoir
• Release hydraulic steering gear
• Lower front axle support (F04 and all-wheel drive vehicles)

Release screw (1) and remove pressure line (2) from steering box.

Tightening torque 32 41 5AZ.

Fig. 166: Identifying Steering Box Pressure Line With Screw

Remove return hose (1) from holder (2).

Fig. 167: Identifying Steering Box Return Hose With Holder

Release screw (1).

Tightening torque 32 41 15AZ.

Release nut (2) on holder.

Tightening torque 32 41 7AZ.

Disconnect pressure line (3).

Installation note: Replace all sealing rings.

Make sure hydraulic line is laid without tension and with sufficient distance to adjoining components.

Fig. 168: Identifying Pressure Line With Screw And Nut On Holder

After installation

• Fill and bleed HYDRAULIC SYSTEM
• Check line connections for leak tightness

REPLACING RADIATOR RETURN HOSE FOR HYDRAULIC STEERING (FROM COOLER TO OLBEHALTER_N63)

WARNING: DANGER OF POISONING if oil is ingested/absorbed through the skin! RISK OF INJURY if oil comes into contact with eyes and skin!

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.

Close off line connections with seal plugs.

Recycling

Catch and dispose of hydraulic fluid in a suitable expansion tank.

Necessary preliminary work

• Draw off and dispose of hydraulic fluid from oil reservoir
• Remove left intake port.

Release hose clamp (1) and detach radiator return hose (2) from oil reservoir.

Installation note: Replace hose clamp.

Make sure hydraulic line is laid without tension and with sufficient distance to adjoining components.

Fig. 169: Identifying Radiator Return Hose With Clamp

Release QUICK-RELEASE COUPLING and seal power steering cooler connection with a suitable plug.

Installation note: Make sure hydraulic line is laid without tension and with sufficient distance to adjoining components.

Fig. 170: Locating Quick-Release Coupling

After installation

• Fill and bleed hydraulic system.
• Check line connections for leak tightness

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