Why is the gear position light not working on a BMW 5 Series?
2 Answers
The gear position light not working on a BMW 5 Series is mainly caused by a faulty gear position switch. Gear position light circuit: Damage to the power supply circuit of the gear position light can also cause the light not to work, requiring the circuit to be replaced; at the same time, water entering the transmission causing a short circuit in the circuit can also result in the gear position light not working. Consequences of the gear position light not working: The gear position light not working can affect the normal use of the transmission. An automatic transmission does not require the driver to manually shift gears; the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. When the vehicle is parked, the P (Park) gear should be used, the R (Reverse) gear should be used when reversing, and the D (Drive) gear should be used when moving forward. If encountering other road conditions, the S (Sport) gear may be needed.
I've also experienced the issue of the gear indicator light not working in my BMW 5 Series, which is actually quite common. The cause could be a burnt-out bulb, similar to how a household bulb's filament breaks after prolonged use; or it might be a blown fuse, as excessive current can sometimes cause fuses to melt. Wiring faults such as short circuits or breaks can also lead to the light not working, especially in older cars where wiring tends to deteriorate. Additionally, problems with the gear position sensor or control module could be to blame—BMW's electronic systems are more complex, making them more prone to faults with even minor disturbances. When this happens, I recommend first checking the fuse box and replacing the fuse corresponding to the gear indicator light. If that doesn't work, then have a professional shop inspect the wiring or module. Although it doesn't affect driving, not being able to see the gear position at night increases the risk of incorrect operations, so don't delay and get it repaired as soon as possible.
