Will 7 series BMW seats fit in a 5series BMW?

It is possible to put 7 series seats in a 5 series, but it is not a direct swap. The 7 series seats are wider and taller than the 5 series seats, so the seat rails will need to be modified. Additionally, the wiring for the 7 series seats will need to be re-connected to the 5 series wiring harness.

Here are the specific steps involved in swapping 7 series seats into a 5 series:

1. Remove the front seats from the 5 series.

2. Disconnect the wiring for the 5 series seats.

3. Remove the seat rails from the 7 series seats.

4. Modify the 7 series seat rails so that they will fit the 5 series.

5. Reinstall the seat rails on the 7 series seats.

6. Connect the wiring for the 7 series seats to the 5 series wiring harness.

7. Install the 7 series seats in the 5 series.

It is important to note that this is a complex process that requires specialized knowledge and tools. If you are not comfortable performing this type of work, it is best to consult with a professional.