During night driving I have noticed that the head lights vary in brightness. They brighten up at about 2500 to 3000 revs and dim when the revs drop. But when in say 4th or 5th gear at about 1500 revs(Diesel model) and I lift off the accrelator the lights brightenup?. Strange. This will voltage varation only happens AFTER the engine has warmed up. The brightness varation is also noted if you over-ride the interior lights. My garage has replaced the control unit but no change. Any suggestions. The battery and alternator have been FULLY checked out and found to be OK.
- posted
17 years ago