BMW 7 Series: Removing And Installing/Replacing Exhaust Pipe

Necessary preliminary work

• Remove FRONT UNDERBODY PROTECTION

NOTE: Graphic similar.

Release screws (1).

Remove lower left cover (2).

Fig. 124: Identifying Lower Left Cover Screws

Slacken nut (1).

Release screw (2).

Withdraw exhaust pipe (3) in direction of arrow from silencer (4).

Installation note: Make sure exhaust pipe (3) is correctly seated.

Fig. 125: Removing Exhaust Pipe From Silencer

REPLACING CHANGEOVER VALVE FOR INDEPENDENT/AUXILIARY HEATING

WARNING: Risk of scalding! Only perform the following repair work on an engine that has cooled down.

FOLLOW NOTES FOR REPAIR WORK ON COOLING SYSTEM.

Necessary preliminary work:

• COMPLETELY REMOVE THE INDEPENDENT HEATER.

IMPORTANT: Risk of damage! Observe marked coolant flow direction.

NOTE: Mark position of coolant hoses prior to dismantling.

Release spring clamps (1) and detach coolant hoses.

Fig. 126: Identifying Coolant Hoses And Spring Clamps

Unfasten connector connection (1) and disconnect.

Unfasten screws (2).

Remove changeover valve for independent/auxiliary heating (3).

Fig. 127: Identifying Independent/Auxiliary Heating Changeover Valve And Screws

After installation

TOP UP COOLANT AND VENT COOLING SYSTEM.

REPLACING ELECTRIC AUXILIARY HEATER - FRONT

Necessary preliminary tasks

• Remove HEATING ELEMENT

Heater/air conditioner shown in removed state.

Unclip plug housing (1) from holder.

Feed positive lead (2) out of holders.

Installation: Make sure positive lead (2) is correctly laid.

Fig. 128: Identifying Plug Housing And Positive Lead

Pull electric auxiliary heater (1) upwards out of heating unit housing (2).

Fig. 129: Pulling Electric Auxiliary Heater Of Heating Unit Housing

REPLACING LEFT OR RIGHT ELECTRIC AUXILIARY HEATER - REAR CABIN

Necessary preliminary work

• Move driver's seat or front passenger seat to "front" and "top" position

For purposes of clarity, pictures show driver's seat removed.

Unclip cover (1) in direction of arrow.

Fig. 130: Unclipping Cover

Release plastic nut (1).

Partially feed out rear cabin air duct (2) in direction of arrow.

Installation note: Ensure that air duct (2) is correctly seated.

Fig. 131: Removing Rear Cabin Air Duct And Plastic Nut

Unlock and disconnect plug

connections (1) on electric auxiliary heater (2).

Unlock and disconnect plug connection (3) on temperature sensor.

Pull out air duct (4) completely.

Fig. 132: Identifying Electric Auxiliary Heater, Air Duct And Plug Connection

Replacement

Remove TEMPERATURE SENSOR FOR ELECTRIC AUXILIARY HEATER.

IMPORTANT: On vehicles with production date up to 05/2010 it is essential in the case of spare parts to observe the part number of the auxiliary heater!

The following part numbers may no longer be installed in vehicles with production dates from 05/2010!

• 9 194 713 (auxiliary heater, left)
• 9 194 714 (auxiliary heater, right)
• 9 158 583 (auxiliary heater, left)
• 9 158 584 (auxiliary heater, right)
• 9 181 331 (auxiliary heater, left)
• 9 181 332 (auxiliary heater, right)

These part numbers may not be combined with other part numbers! In this case, both auxiliary heaters must be replaced!

REPLACING TEMPERATURE SENSOR FOR LEFT OR RIGHT ELECTRIC AUXILIARY HEATING - REAR PASSENGER COMPARTMENT

Necessary preliminary work

• Remove REAR PASSENGER COMPARTMENT ELECTRIC AUXILIARY HEATING

NOTE: Picture for example purposes.

Unlock temperature sensor (1) by turning and remove.

Fig. 133: Identifying Temperature Sensor

REPLACING TURBOCHARGER COOLANT PUMP FOR AUXILIARY HEATING

WARNING: Risk of burning! Repair work on the cooling system may only be carried out when it has cooled down.

Recycling

Coolant emerges when coolant lines are detached. Have a suitable collecting vessel ready.

Catch and dispose of emerging coolant.

Observe country-specific waste disposal regulations.

NOTE: Clamp off coolant hoses.

Necessary preliminary work

• Remove FRONT UNDERBODY PROTECTION
• Remove ORNAMENTAL GRILLE IN BUMPER TRIM ON LEFT

NOTE: Graphic similar.

Release screws (1).

Remove lower left cover (2).

Fig. 134: Identifying Lower Left Cover Screws

Unfasten plug connection (1) and disconnect.

Release spring clamps (2) and detach coolant hoses.

Release screw (3) and remove retaining bracket.

Remove turbocharger coolant pump (4).

Fig. 135: Identifying Turbocharger Coolant Pump, Plug Connection, Spring Clamps And Screw

After installation

• FILL AND BLEED COOLING SYSTEM AND CHECK FOR WATERTIGHTNESS.

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