An interesting discovery, not sure if it has been brought up before, if it has, apologies!
The OEM projector lights use level sensors to correct the angle of the light when the car goes over bumps or is loaded unevenly, etc. Now on the guide I used for changing my springs (for a GTi) it stated there would be a level sensor on both the front and rear of the vehicle, however, on my FL Cupra, there is only a sensor on the nearside, rear, suspension arm.
This means that when the car is lowered, the level sensor is seeing the change in height at the rear of the vehicle, but has no idea what the front is doing - meaning it thinks the back of the car is squatted down. This results in the lights adjusting to point downward, reducing optimal light output.
I have corrected this by shortening the linkage on the level sensor, but thought others should be aware!
Hope this is of help.
The OEM projector lights use level sensors to correct the angle of the light when the car goes over bumps or is loaded unevenly, etc. Now on the guide I used for changing my springs (for a GTi) it stated there would be a level sensor on both the front and rear of the vehicle, however, on my FL Cupra, there is only a sensor on the nearside, rear, suspension arm.
This means that when the car is lowered, the level sensor is seeing the change in height at the rear of the vehicle, but has no idea what the front is doing - meaning it thinks the back of the car is squatted down. This results in the lights adjusting to point downward, reducing optimal light output.
I have corrected this by shortening the linkage on the level sensor, but thought others should be aware!
Hope this is of help.