Automatic Headlight Beam Adjustment
Vehicles with Litronic headlights feature automatic headlight beam adjustment.
When the ignition is switched on, the level of the headlight beam automatically changes in accordance with the vehicle load. The level of the headlight beam is automatically kept constant during acceleration and braking.
Checking operation
1. Switch the low beam on.
2. Switch ignition on.The light beam first dips all the way down and is then adapted to the vehicle load. The level of the low beam rises perceptibly when the high beam is switched on.
If these test items are not met, the headlight beam adjustment must be checked by an authorized Porsche dealer.
Try the test before going to the dealer. Hope this help.