Hi, I am getting a new FL2 next week.I want to put a pair of yellow fog lamps on the vehicle.I am using a Merc at the moment and have found the standard white fogs to be of no help in thick fog.I am wondering if I need to put an extra switch and if it it can interfere with the warranty.Is there anyone with an experience in this regard.In this forum I haven't seen any vehicles with yellow fogs.I guess it is banned in UK. Your reply is highly appreciated.Cheers

Hi if you search internet you will find numerous tint options for existing lamps.

Yellow fogs are not banned - just out of fashion. You can show any colour light to the front except red. The idea of yellow was to cut some of the glare from white light reflected by fog. The present method of wiring fog lamps to only come on together with headlamps has made their use obsolete in my opinion. The idea of a fog lamp, mounted low down with a very flat beam, is that you can look over the top of the beam without having too much light reflected back into your eyes thereby impairing your vision. With headlamps on a lot of light is reflected back in thick fog. Those of you who have driven in thick fog with just properly adjusted front fog lamps will know what I mean. 1982 RR Classic-converted to 200TDi-gone
1992 RR VogueSE- converted to autogas-gone
2000 FL1 3dr (wife's)
1996 Disco 1 300 Tdi(gone)
2007 FL2 TD4 GS auto (gone)
MY 2011 SD4 HSE Automatic

Totally agree with you colinrr - it's a shame that you can't adapt the fog lights to driving lights, make much more sense in my opinion. Having said that, perhaps it can be done?

colinrr wrote:

The present method of wiring fog lamps to only come on together with headlamps has made their use obsolete in my opinion.

You don't need to have the headlamps on in order to turn the fog lights on.
The light switch has 4 positions: off - side lamps - head lamps - auto.
The fog lights works with all positions, minus OFF obviously. (And Auto when it's daylight)
So, you just need to turn on the side lamps - first position after OFF.
No need to switch to head lamps. And side lamps, for sure, don't impair your vision during fog.
Just try it...

Thank you all for your response!

As I mentioned earlier I am still waiting for my FL2.My Merc has xenons but I have never tried the fogs alone- though the options Alex mentioned are the same as in the Merc.Soon after getting the Merc I took a 250 km night drive in thick fog assuming the xenons are going to help me and it was a total disaster.Needless to mention the glare was worse than from a normal light and I nearly killed myself.In fact I haven't noticed anyone here driving with the fogs alone switched on !!Eager to see the results

alex_pescaru wrote:

colinrr wrote:

The present method of wiring fog lamps to only come on together with headlamps has made their use obsolete in my opinion.

You don't need to have the headlamps on in order to turn the fog lights on.
The light switch has 4 positions: off - side lamps - head lamps - auto.
The fog lights works with all positions, minus OFF obviously. (And Auto when it's daylight)
So, you just need to turn on the side lamps - first position after OFF.
No need to switch to head lamps. And side lamps, for sure, don't impair your vision during fog.
Just try it...

Front Fog lights if correctly wired should be able to be switched on when any front lights are activated, Sides, Full and Dipped, however it is the rears that are wired so they only come on with the minimum of hving Dipped Beam activated, but my feeling is the rears should be on a speed sensing switch, then this would stop the drivers who have them on dazzling you when they pass you doing 80mph, why if they feel that conditions are so bad they need rear fogs on yet they are doing 80 40mph and then they should deactivate, who do they think is going to be stupid enough to rear end them when they are doing 70+

I fully agree. In the UK it is an offence to use them in other than seriously reduced visibilty. Although this is not defined in law, guidance has indicated that it means less than 200 feet (Approx 60m). Like many aspects of traffic law, there is very little way of enforcing it.

Colin 1982 RR Classic-converted to 200TDi-gone
1992 RR VogueSE- converted to autogas-gone
2000 FL1 3dr (wife's)
1996 Disco 1 300 Tdi(gone)
2007 FL2 TD4 GS auto (gone)
MY 2011 SD4 HSE Automatic

Fog lamp cameras???