Volvo Owners Club Forum - View Single Post - Weak Headlights

Pioneer12 · Nov 12th, 2018, 08:53

I have jumped to this last page 39 after starting at p1. If anyone has solved the problem in between tell me where please.
My problem is a fault of failure not of design. We have had the car since new 1999 Volvo S40. The headlights worked perfectly well on main & dipped for 17 years. All of a sudden the dipped beam dimmed. The blue main beam warning light lit dimly on dipped beam. I seem to remember reading somewhere that they have a central electronic control unit to do with day light running lights which can be a problem or perhaps some resistor. In the old days it was just a bad earth on my fathers 1969 Ford Capri when it was a week old! Any ideas?

Nov 12th, 2018, 08:53	#282
Pioneer12 New Member Last Online: Apr 11th, 2020 22:58 Join Date: Sep 2016 Location: Rojales	Dimmed Headlights I have jumped to this last page 39 after starting at p1. If anyone has solved the problem in between tell me where please. My problem is a fault of failure not of design. We have had the car since new 1999 Volvo S40. The headlights worked perfectly well on main & dipped for 17 years. All of a sudden the dipped beam dimmed. The blue main beam warning light lit dimly on dipped beam. I seem to remember reading somewhere that they have a central electronic control unit to do with day light running lights which can be a problem or perhaps some resistor. In the old days it was just a bad earth on my fathers 1969 Ford Capri when it was a week old! Any ideas?