What is the Headlight Closure Relay all about?
Some cars, mostly older sports cars and a few other models, have retractable (pop-up) headlights that hide inside the bonnet and rise when you switch the lights on. A relay controls the motor that raises and lowers them.
Keep in mind:
- This is uncommon in Kenya, so parts may need to be sourced specially and fitted by a mechanic who knows the model.
- A failed relay can leave the headlights stuck closed, which is a night driving hazard.
- Many of these cars have a manual knob to raise the lights in an emergency.
- Worn motors, stiff linkages and broken wiring can cause the same fault.
How it's done:
The mechanic checks fuses, wiring and the headlight motor. The relay is located and tested. A new relay is fitted. The headlights are raised and lowered several times to confirm they work.
Our recommendation:
Do not drive at night if the lights will not rise. If you own a car with pop-up lights, ask us to check the motors and linkages at every service.
What common symptoms indicate you may need to replace the Headlight Closure Relay?
- The headlights will not rise or will not close.
- Only one headlight moves.
- The headlights stay half open.
- No sound from the headlight motors when you switch on.
How important is this service?
Important if you drive at night. Headlights that will not open leave you with no safe light.
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