Withdrawal
1. Remove the head restraint, refer to the relevant section.
2. Move the front seat all the way forward and up.
3. Turn away a bolt of fastening -2- and remove a seat belt -1-.
4. Turn away two back bolts of fastening -3-.
5. Move the seat all the way back.
6. Front passenger seat: Remove the first aid kit -4-. To do this, use a screwdriver to pry up the clips -5- on the left and right. Push the first aid kit from the front down and take it out.
7. Disconnect the negative cable (-) battery with the ignition off. The battery is located in the luggage compartment behind the cover on the right side. For BMW 316i, 318i, the battery is located in the engine compartment.
Disconnecting the battery clears the fault memory of some controls. If necessary, read the fault memory before disconnecting the battery. Refer to Section Troubleshooting. It is desirable to carry out work in the conditions of a service station.
8. Observe safety measures when handling the belt tensioner and airbag, refer to Section Power Steering (servo control).
9. Disconnect the plug connection -6- from the front under the seat, having previously removed the holder -7- from the side.
10. Turn away nuts -8- and remove with spring washers. Remove the covers first, if any.
11. Remove the channel with protective covers and carefully remove the front seat.
Withdrawal
12. Carefully install the seat and align it so that the holes line up.
The mat must not be located in the bolted area between the seat rails and the bottom, otherwise noise may be generated when driving.
13. Fasten the seat in front with new nuts and tighten them to 55 Nm.
14. Connect the connector under the seat, insert the holder and thus fix the plug.
15. Front passenger seat: Insert the first aid kit with the rear pins into the guides on the seat, push up from the front and secure in the brackets.
16. Connect the negative cable (-) battery with the ignition off. Set the clock.
17. Move the seat all the way forward.
18. Fasten two new mounting bolts at the rear with a torque of 55 Nm.
19. Fasten the seat belt outside with a torque of 48 Nm.
20. Install the head restraint, refer to the appropriate section.
21. Set the clock.
Especially in the event of damage to the electric adjustment of the longitudinal position of the seat:
22. Tilt the seat with the tilt adjustment mechanism up.
23. Turn out two bolts of fastening of a drive of adjustment of longitudinal provision of a seat and remove a drive.
24. Turn on the switch for the longitudinal adjustment mechanism.
- The mechanism does not work: Install a new drive and turn it on. If the mechanism now works, the gearbox is working, replace only the electric motor.
- Motor runs, seat does not move: Faulty seat movement gearbox, replace it.
25. Disconnect the connector for the longitudinal seat adjustment mechanism.
26. Turn away two bolts of fastening of the tire of a seat in front and overturn a seat back.
27. Cut off the connecting shaft with a large bolt cutter.
28. Turn out two bolts of fastening and remove a reducer at the left and on the right. The seat can then be moved manually.
29. To remove the seat, secure the tires in front of the frame.
30. Remove seat and replace tires.