Removal and installation an additional water pump and water valve (BMW 7 Series E38)

Additional water pump (on the fan casing)

1. Remove the front engine accessory protection panel.



2. Disconnect the connector (1) and remove the water hoses (2).

3. Remove the brackets and auxiliary water pump.

4. Installation is carried out in reverse order. Finally, bleed the cooling system.

Heater water valve

Below is a description for the model with the M67 engine, on other models this procedure is performed similarly.

The procedure for removing and installing the water valve of the heating system and the A/C of the rear compartment is described in the description of the removal and installation of the radiator of the heater of the rear compartment (see section Removal and installation the heater radiator).

1. Remove the air outlet duct and soundproof casing. Loosen the bolts (1) of the clamps (2), move the vacuum pipe (3) to the side in the direction of the arrow, and secure with clamps if necessary. Separate the contact tape (4) and remove the insulation (5) in the direction of the arrow.





2. Remove the clamps (1) and separate the contact tape (2) in the direction indicated by the arrow. Pull out the pipes (3) in the direction indicated by the arrow and secure with clamps if necessary.



3. Disconnect the connector (1), loosen the clamps (2) and remove the water hose (3) assembly.



4. Disconnect the water valve (1) from the rubber cushions in the direction indicated by the arrow. Loosen the clamps (2) and disconnect the water hoses.





5. Installation is carried out in the reverse order. Pay attention to the correct position of the guides (1 and 2). If necessary, replace the rubber cushions.

(The original article is located on: «BMWMAN.RU»)