Quicky About 850 Front Fogs

[2Diesels]

Are they all completely ineffective or is it just mine?
Reason I ask is I do occasionally use my front fogs on really dark remote roads for a shade extra assistance (turn them straight off for oncoming cars) but the ones on the 850 dont add anything to the light patterns in front of you, initially I thought they just weren't working but on checking they are

[Darth Vol]

Originally Posted by 2Diesels

Are they all completely ineffective or is it just mine?
Reason I ask is I do occasionally use my front fogs on really dark remote roads for a shade extra assistance (turn them straight off for oncoming cars) but the ones on the 850 dont add anything to the light patterns in front of you, initially I thought they just weren't working but on checking they are

Are they correctly aligned? They have adjusters so possible they need focusing. Mine work fine but then again, the bumpers are quite wide so the light dispersion must be affected in some ways? However, have you tried cleaning the inside of the glass and change the bulbs for "fresher" ones?

[2Diesels]

I have just had them to bits today & given them a clean out & they looks more silvery than they did (they did look quite dark) not tried em yet but I will on my way home, ordered some nightbreakers to go in, see how it goes

[christheancient]

Using front fogs as a 'supplement' on a clear night will only have a limited effect because most of the area covered by fogs is already covered by dipped headlights. Because the fog lights are lower, the area they cover has expanded slightly and that diminishes the apparent illumination. You may, however, notice a slight improvement in visibility of the kerb and centre line close to the car.

Fog lights are designed and positioned where they are to reduce 'back scatter' when there is fog, and to do that, the design and position has to be a compromise. After all, if it is foggy, you should be driving a lot slower and the reduced distances of projection shouldn't matter.

Like yourself, I have occasionally used fog lights as a supplement on some country roads where it is difficult to actually work out where the road ends and the verge begins (and switch them off if there is anybody else is around in case they are the old bill). I do not, however use them in the BMW manner to demonstrate to all and sundry that I own a BMW, it is an upmarket version and I am a wonka!

[2Diesels]

Originally Posted by christheancient

Using front fogs as a 'supplement' on a clear night will only have a limited effect because most of the area covered by fogs is already covered by dipped headlights. Because the fog lights are lower, the area they cover has expanded slightly and that diminishes the apparent illumination. You may, however, notice a slight improvement in visibility of the kerb and centre line close to the car.

Fog lights are designed and positioned where they are to reduce 'back scatter' when there is fog, and to do that, the design and position has to be a compromise. After all, if it is foggy, you should be driving a lot slower and the reduced distances of projection shouldn't matter.

Like yourself, I have occasionally used fog lights as a supplement on some country roads where it is difficult to actually work out where the road ends and the verge begins (and switch them off if there is anybody else is around in case they are the old bill). I do not, however use them in the BMW manner to demonstrate to all and sundry that I own a BMW, it is an upmarket version and I am a wonka!

Yeah I fully agree with your post but you literally can't tell you've switched them on whereas in my old 940 with the fogs integral in the headlamps they were a great help & also on my ZT, I tried them again (since cleaning) & they still do nowt so I'll try fresh bulbs & a tweak of the adjustment

[rallysteve]

I find them good for highlighting bumps on the rough backroads, the shadows they produce give a nicer warning of the compression of your spine with -40mm springs

steve

[2Diesels]

Originally Posted by rallysteve

I find them good for highlighting bumps on the rough backroads, the shadows they produce give a nicer warning of the compression of your spine with -40mm springs

steve