How to test, remove, and install the back up light switch on the BMW Z4?

The back-up light circuit is controlled by a plunger-type switch located on the left-hand side of the Getrag transmission casing and the right-hand side of the ZF transmission casing. If a fault occurs, first check that the circuit fuse is intact. To test the switch, disconnect the wiring connector and use a multimeter set to the resistance function or a battery-and-bulb test circuit to verify continuity between the switch terminals only when reverse gear is engaged. If continuity is not present and there are no visible breaks or damage to the wires, the switch is faulty and needs replacement. To remove the switch, raise the vehicle and support it securely on jackstands, then disconnect the wiring connector and unscrew the switch from the transmission casing. For installation, screw the switch back into the transmission housing and tighten it securely, reconnect the wiring connector, and test the circuit's operation before lowering the vehicle to the ground.

Genuine BMW Z4 Back Up Light Switch

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BMW Z4 Backup Light Position Switch
Part Number: 24107507818
$305.76 MSRP: $384.97
You Save: $79.21 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Position Switch; Back-Up Switch, Neutral Safety Switch
- Replaces: 24-11-1-421-506
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2005 BMW Z4 | 2.5i(E85), 3.0i(E85)
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BMW Z4 Reverse Light Switch
Part Number: 23147524811
$22.53 MSRP: $26.43
You Save: $3.90 (15%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reversing Light Switch; Back-Up Switch, Neutral Safety Switch
- Replaces: 23-14-7-506-637, 23-14-0-396-403
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2016 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85), sDrive28i(E89), sDrive30i(E89), sDrive35i(E89)

BMW Z4 Back Up Light Switch

The BMW Z4 Back Up Light Switch alerts following traffic by turning on the reverse lamps whenever the roadster shifts into reverse gear. Located either on the transmission housing, the floor console, or the steering column depending on model year, this Back Up Light Switch completes an electrical circuit the instant the selector lever reaches the reverse gate, sending power straight to the rear white bulbs for clear signaling on BMW gearboxes. Manual-equipped Z4 versions rely on a simple mechanical plunger style Back Up Light Switch that gets pressed by internal linkage, while automatic editions often integrate the Back Up Light Switch with the neutral safety assembly for combined gear-position sensing. Across the BMW Z4 production run, both styles share the same goal of immediate illumination yet differ in actuation method, the mechanical unit moves directly with gear movement whereas the integrated switch can include hydraulic or electrical triggers that also prevent starting in gear. Regardless of version, a functioning Back Up Light Switch remains vital for safe night backing, helping every BMW driver stay visible and giving the nimble Z4 its trademark confidence when maneuvering in tight spots.

If you are looking for OEM BMW Z4 Back Up Light Switch, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW Z4 Back Up Light Switch that come backed by the manufacturer's warranty.

BMW Z4 Back Up Light Switch Parts Questions & Experts Answers

Backup Light Position Switch
24107507818
Q:
How to test, remove, and install the back up light switch on the BMW Z4?
Posted by Alexandre R.
A:
The back-up light circuit is controlled by a plunger-type switch located on the left-hand side of the Getrag transmission casing and the right-hand side of the ZF transmission casing. If a fault occurs, first check that the circuit fuse is intact. To test the switch, disconnect the wiring connector and use a multimeter set to the resistance function or a battery-and-bulb test circuit to verify continuity between the switch terminals only when reverse gear is engaged. If continuity is not present and there are no visible breaks or damage to the wires, the switch is faulty and needs replacement. To remove the switch, raise the vehicle and support it securely on jackstands, then disconnect the wiring connector and unscrew the switch from the transmission casing. For installation, screw the switch back into the transmission housing and tighten it securely, reconnect the wiring connector, and test the circuit's operation before lowering the vehicle to the ground.
Answered by BMW Parts Specialist Blaine / Oct 27, 2025