Hi,

We do have a fairly high failure rate for headlamp aim. We charge the full price for MoT tests. If it is just a simple adjustment, with no seized screws or defective self levelling components, we don't charge. As headlamp bulbs become more complicated to fit we see many more vehicles with headlamp bulbs jammed in upside down,sideways, you name it. I think the high failure rate is borne out by the number of vehicles you see on the road at night with one headlamp shining straight into your eyes.

Tom W