MY16 XC60 D4 SE LUX DRL (day driving lights)

[NigelDay]

Originally Posted by wimorrison

You have a greater chance of winning the lottery than seeing or being stopped by a police car - especially for something as 'trivial' as not have the correct lights on.

I have done just short of 600 miles today on motorways and didn't see a single police car, but I saw hundreds of cars without rear lights on, and that is ignoring the need to have rear fog lights on for the conditions.

Here is the solution to the 'daytime fog scenario in Auto mode'. Switch on your rear fog lights. The headlights then come on.

[wimorrison]

Originally Posted by NigelDay

Here is the solution to the 'daytime fog scenario in Auto mode'. Switch on your rear fog lights. The headlights then come on.

Correct - or at least correct for a new Volvo - cant answer for the other marques though

[Turnwood]

The first hint of fog and I see that plenty of road users have switched on their rear fog lights at night. Can they not see that they are blinded by others doing the same thing and that rear fog lights soften the impact of brake lights coming on? I don't want to sound like a grumpy old man, but rear fog lights are only needed during the day in dense fog and at night in extremely poor visibility (much less than 50m).

[volvorocks]

Originally Posted by volvorocks

I have taken a look at the DRL at night with the headlights OFF, and 'by George' are they BRIGHT with a capital 'B'..!!

Originally Posted by volvorocks

I have looked at the DRL with the headlights ON, and they do not appear any dimmer than when the headlights are off.

To update the OP, the DRL's DO dim when the headlights come on, although they certainly didn't when I originally checked them.

Ref comments about driving in fog with just the DRL's on, I think doing so will be fine considering they are extremely bright and do not reflect against the fog creating a reduction in visibilty like headlights being on do.

Regards

[Whyman]

I have fitted a set of aftermarket DRLs.

Firm memory they are at full power until the headlights are on dip when they are on half power and go off with main beam. Apparently this is to do with some American regs.