Happy new year to all. I have a 05 d tourer. The headlights have been really dim lately and only light up about ten foot in front of the car. I have tried adjusting then and can confirm they do adjust I've checked the bulbs are the correct way up. My next step is to restore the lens. Online I've seen some posts suggesting dim headlights could be caused by bad ground connection. Could someone tell me where the headlight ground connections are so I can check and clean them up. Or suggest anything else that may be causing this. Thanks in advance.