Install front seat

WARNING: Pyrotechnic components.
Danger! Immobilization period-threatening injuries!

All work on pyrotechnic parts may be carried out by technically experienced and appropriately trained personnel only.
Replace any damaged part or ones that have been dropped.
For additional information see: SAFETY REGULATIONS FOR HANDLING COMPONENTS WITH GAS GENERATORS .

NOTE: RISK OF DAMAGE
Careless handling of tools and sharp-edged components.
Scratches, surface damage.

Protect working area.
Handle tools and components carefully.

Cover the door sill using protective covers.

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NOTE:
RISK OF DAMAGE
Heavy component.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
Lift front seat (1) into the vehicle with the assistance of a support person.
Place front seat (1) to the rear.
Connect connectors (2) and lock.
Check all plug connections for completeness, correct fit and locking where required.
Attach the cable clip (3).

Disconnecting all battery ground leads

See DISCONNECTING AND CONNECTING BATTERY GROUND LEAD (ALL NEGATIVE BATTERY CABLES) (740I 2016-2022, 740I XDRIVE 2017-2022, 750I 2016-2019, 750I XDRIVE 2016-2022, M760I XDRIVE 2017-2022) , or DISCONNECTING AND CONNECTING BATTERY GROUND LEAD (ALL NEGATIVE BATTERY CABLES) (740E XDRIVE PHEV 2017-2019, 745E XDRIVE PHEV 2020-2022) .

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Activating the 48 V electrical system

Precondition

Ignition is switched off.

NOTE: RISK OF DAMAGE
Damage to the 48-V battery
If a 48-V battery that is disconnected from the electrical system is activated, the battery electronics will be damaged.

Only ever activate the 48 V electrical system when the 48 V battery is fully connected up.

Raise the battery ground cable (1).
Remove special tool 2 452 007 .

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Release the negative battery cable (2) of the 48-V battery from the attachment.
Position the negative battery cable (2) of the 48-V battery on the negative battery terminal.

Tighten the nut (1).

TIGHTENING TORQUE SPECIFICATIONS

Negative battery cable to 48-V battery
Nut M8	tightening torque	19 Nm

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Connect the connector (1) of the CAN bus and lock it.
Clip in the clip (2).

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Activate the 48 V electrical system by closing the hood.

The activation takes place automatically.

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Shift front seat rearwards.
Replace screws (1).
Parts: Screws
Tighten down screws (1).

TIGHTENING TORQUE SPECIFICATIONS

Seat to body
Cheese head screw with collar Replace screw.	tightening torque	42 Nm

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Installing the front seat rail trim

Move the front seat to the rear.
Push on the front seat rail trims (1) in the direction of the arrow from front and clip in at side.

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Install rear seat rail trim

Adjust front seat forward.
Push the rear seat rail trim (1) from behind in the direction of the arrow and clip in on the side.

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Shift front seat forwards.
Replace screws (1).
Parts: Screws
Tighten down screws (1).

TIGHTENING TORQUE SPECIFICATIONS

Seat to body
Cheese head screw with collar Replace screw.	tightening torque	42 Nm

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For the Captain's Chair: Install rear seat rail trim

NOTE: Description is for left component only. Procedure on the right side is identical.

Connect the rear seat rail trim (2) from the rear and clip in with the detent (3).
Tighten down screw (1).

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Clip in the rear seat rail trim (1).

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Fully adjust the front seat to the front and top.
Insert the end fitting (2).
Replace the screw (1).
Parts: Screw
Tighten down screw (1).

TIGHTENING TORQUE SPECIFICATIONS

Seat belt strap fitting to seat mechanism
M10 Replace screw.	tightening torque	42 Nm

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Installing the front seat rail cover

Position the front seat rail cover (1) in the arrow direction.

The detents (2) must engage audibly.

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Installing the outer seat rail cover

Position the outer seat rail cover (1) correctly in arrow direction (2).
Snap-in the outer seat rail cover (1) in arrow direction (3).

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