The offside headlight of the Vauxhall Astra Elite Driver is inoperative.

[alpaco45]

Vauxhall headlight malfunction; the offside front headlamp levelling mechanism is inoperable from the driver's position.

The MOT facility is unable to do the task. Should I take it to Vauxhall, or is this something that a local garage or I can handle?

66Plate

Thank you.

[Mistral]

The resolution is contingent upon the specific problem, since there are little motors inside the headlamp that regulate the levelling. It may be the minor motor or the intervening wire.
A competent local garage should be able to resolve the problem for you, or if you possess mechanical skills, you may be able to address it yourself. If feasible, consider shifting the headlights to the other side to see whether the issue is with the headlamp or the wiring.

[alpaco45]

When attempting to adjust from the driver's side, there is an audible response indicating an attempt to adjust, which may coincide with the movement of the passenger side. I shall attempt to interchange them to see whether that is beneficial. The motor may perhaps be the issue, albeit the overall wiring is subpar. Thank you.

[Chrishazle]

The Astra J or K, 66 plate, might potentially be either model.
Halogen or LED lighting?

[alpaco45]

Astra K. I apologise; I should have mentioned that. Light Emitting Diodes. Thank you.

[Chrishazle]

The system is quite complex, suggesting the presence of two sensors or motors on each side, or maybe control modules.

Circuit/System Specification
Every headlight assembly includes a headlamp levelling actuator regulated by the headlamp levelling switch. The headlight levelling switch receives ignition voltage and ground, including a resistor ladder with four settings allowing vertical adjustment of the lights.
Upon activation of the headlight levelling switch to the specified position, power from the B+ ignition circuit is diminished via the resistor ladder, subsequently supplying electricity to the left and right headlamp levelling actuators via the headlamp levelling control circuits.
The headlight levelling actuators receive B+ and ground connections.
Upon activation of the headlamp levelling switch, the left and right headlight levelling actuators adjust the headlamps to the specified position.

[jimmy47785]

The headlight levelling mechanism may need a specialised diagnostic instrument or knowledge available at a Vauxhall dealership. Although a local garage may diagnose and perhaps resolve the problem, visiting a Vauxhall dealer guarantees access to the appropriate tools and expertise tailored to your unique model. If you possess the requisite skills for DIY repairs and have access to appropriate materials, you may attempt to identify the issue alone; nevertheless, it may be more effective to engage specialists for assistance.