Is it OK for rear fog lights to go off when the ignition is turned off?....

On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!

"Brian Reay" wrote in message
...
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other conditions),
not for example in towns etc. Therefore you don't need them when the
engine is off!

Is there actually any prohibition from using them on certain types of road.
I though the only rule was the obvious one of "turn off rear fog lights when
the following car is so close that it will be dazzled by them"? I tend to
keep my rear fog lights on in fog if I can't see any lights behind me, and
turn them off when I can see the headlights of the car behind (on the
grounds that when I can see him, he is probably close enough to be dazzled
by my fog lights).

Embarrassingly, I spent the whole of one journey religiously turning what I
thought were my fog lights off and on depending on whether I could see
anything behind me, only to discover at the end of my journey that I'd been
turning on/off the adjacent switch - for my heated rear window ;-) That was
on an old Mark II Golf where there were three rocker switches on the
dashboard - one for fog lights, one for heated rear window and one for
something else - unlike the modern trend of putting the fog light switches
as a pull-out on the on-dashboard light switch (modern VWs) or as a collar
on the light-switch stalk (most other cars I've driven).

On 23/01/2020 12:54, Brian Reay wrote:
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!



Why not in towns? I can't see anything in the Regulations or HC that
distinguishes them from any other location.

--
Robin
reply-to address is (intended to be) valid

Brian Reay wrote:
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!



I dont if it has been made a regulation but it does seem the normal
arrangement on more modern vehicles. It has certainly cut down on the
number of cars seen with a rear fog lamp still on some time after
conditions needed them.
It wasnt unusual to see a car being driven weeks or even months after the
last time the lamp was needed ,now on a more up to date vehicle the effect
of such forgetfulness* will only last till next time the vehicle is shut
down.
* or unawareness and ignorance of the extra warning light showing
somewhere on the dashboard for weeks.

I think the longest I went with one on was for about two miles on a Ford
Escort where the light was put somewhere as an afterthought as it was
designed in originally on that model a MK2 I think it was.

It had been turned on by the MOT tester and not turned off, subsequently I
always checked and found the same after a couple of MOT tests. It was
almost as if they did that as some sort deliberate party trick.

GH

On 23/01/2020 12:54, Brian Reay wrote:
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!


good glad to hear that.... I was thinking that in some cars when you
turn the ignition off the headlights go off and the front fogs go off as
well ....so I don't suppose the rear fogs going off with the ignition
is a problem...anyway at the mot I think they run the car to heat it up
to test the emissions and they check the lights when it is running
......thanks for easing my mind on this.....

Rear fog lamps should only be used when dipped headlights are used. On most modern cars the fog lamps will not come on unless dipped headlamps are on certainly on our Kuga that is the case and if the ignition is turned off the fog lamps will not come back on without being switched on again.

Richard

On 23/01/2020 13:21, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need
them when the engine is off!

Is there actually any prohibition from using them on certain types of
road. I though the only rule was the obvious one of "turn off rear fog
lights when the following car is so close that it will be dazzled by
them"?


Oh dear....

On 23/01/2020 13:50, Tricky Dicky wrote:
Rear fog lamps should only be used when dipped headlights are used. On most modern cars the fog lamps will not come on unless dipped headlamps are on certainly on our Kuga that is the case and if the ignition is turned off the fog lamps will not come back on without being switched on again.

Richard

naw mine come on without the headlights but go off then the ignition is
turned of but on this car the headlights come on without ignition...but
it is weird

On 23/01/2020 15:02, Jim GM4DHJ ... wrote:
On 23/01/2020 13:50, Tricky Dicky wrote:
Rear fog lamps should only be used when dipped headlights are used. On
most modern cars the fog lamps will not come on unless dipped
headlamps are on certainly on our Kuga that is the case and if the
ignition is turned off the fog lamps will not come back on without
being switched on again.

Richard

naw mine come on without the headlights but go off then the ignition is
turned of but on this car the headlights come on without ignition...but
it is weird

and .........the rear fog lights can't come on mechanically until the
headlight switch is on but still go off with the ignition...even though
the headlights are still on...

"Marland" wrote in message
...
They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!

I dont if it has been made a regulation but it does seem the normal
arrangement on more modern vehicles. It has certainly cut down on the
number of cars seen with a rear fog lamp still on some time after
conditions needed them.
It wasnt unusual to see a car being driven weeks or even months after the
last time the lamp was needed ,now on a more up to date vehicle the
effect
of such forgetfulness* will only last till next time the vehicle is shut
down.
* or unawareness and ignorance of the extra warning light showing
somewhere on the dashboard for weeks.

I've not come across any cars which reset the state of the foglights when
the engine is switched off.

I have come across cars which reset it when the side light switch is turned
off - sometimes as a mechanical interlock in the switch - which achieves the
same purpose: that it is impossible for the foglights to come on (without
deliberate human action) next time the lights are turned on.

I think I'd spot the foglight reminder lamp when I did my "cockpit drill"
every time I start the car - scan the dashboard for unexpected lights, check
for fuel level, check that oil and ignition lights *do* come on when the
ignition switch is turned on and go out when the engine is running, etc. But
I'm probably unusual in doing that quick check - and the old waggle of the
gear lever before starting, to prove to myself that it's in neutral, which
saves the car lurching forwards if I've left it in gear.

But I know what you mean about lights in inaccessible places. The worst was
on my mum's old Renault 14 where the temperature gauge and warning light
were on the centre console in front of the gear lever - not the sort of
place that you routinely scan with your eyes while driving. My sister
knackered the engine when a radiator hose blew and the temperature went
sky-high... but she didn't see the gauge/light. Mum was not pleased, but she
agreed that it was a very understandable thing to miss.

"Brian Reay" wrote in message
...
On 23/01/2020 13:21, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!

Is there actually any prohibition from using them on certain types of
road. I though the only rule was the obvious one of "turn off rear fog
lights when the following car is so close that it will be dazzled by
them"?


Oh dear....

Rather than tutting, perhaps you'd like to point me to the exact
regulations. OK, so I omitted to say "only use them when it's foggy",
because I thought that was blindingly obvious, though many people seem to
use them even when it's completely clear (not even light mist).

Is there something in the highway code about classes of road or its speed
limit which regulates when they may or may not be used, despite thick fog,
subject always to the "don't dazzle" rule.

In article ,
NY wrote:
Rather than tutting, perhaps you'd like to point me to the exact
regulations. OK, so I omitted to say "only use them when it's foggy",
because I thought that was blindingly obvious, though many people seem to
use them even when it's completely clear (not even light mist).


They are very useful in daytime heavy rain too. Anywhere where they can be
seen before the actual car itself on normal tail lights.

--
*Wood burns faster when you have to cut and chop it yourself.

Dave Plowman London SW
To e-mail, change noise into sound.

On 23/01/2020 15:26, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 13:21, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need
them when the engine is off!

Is there actually any prohibition from using them on certain types of
road. I though the only rule was the obvious one of "turn off rear
fog lights when the following car is so close that it will be dazzled
by them"?


Oh dear....

Rather than tutting, perhaps you'd like to point me to the exact
regulations. OK, so I omitted to say "only use them when it's foggy",
because I thought that was blindingly obvious, though many people seem
to use them even when it's completely clear (not even light mist).

Is there something in the highway code about classes of road or its
speed limit which regulates when they may or may not be used, despite
thick fog, subject always to the "don't dazzle" rule.

excuse brian it is just the way he is ......

Imagine you are the designer of this logic. It must be a nightmare. I'm sure
there is some logic to all of this, but it passes me by. All I know is that
rear fog lights can dazzle the following drivers.
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Jim GM4DHJ ..." wrote in message
...
On 23/01/2020 15:02, Jim GM4DHJ ... wrote:
On 23/01/2020 13:50, Tricky Dicky wrote:
Rear fog lamps should only be used when dipped headlights are used. On
most modern cars the fog lamps will not come on unless dipped headlamps
are on certainly on our Kuga that is the case and if the ignition is
turned off the fog lamps will not come back on without being switched on
again.

Richard

naw mine come on without the headlights but go off then the ignition is
turned of but on this car the headlights come on without ignition...but
it is weird

and .........the rear fog lights can't come on mechanically until the
headlight switch is on but still go off with the ignition...even though
the headlights are still on...

On 23/01/2020 13:32, Marland wrote:
Brian Reay wrote:
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!



I dont if it has been made a regulation but it does seem the normal
arrangement on more modern vehicles. It has certainly cut down on the
number of cars seen with a rear fog lamp still on some time after
conditions needed them.
It wasnt unusual to see a car being driven weeks or even months after the
last time the lamp was needed ,now on a more up to date vehicle the effect
of such forgetfulness* will only last till next time the vehicle is shut
down.
* or unawareness and ignorance of the extra warning light showing
somewhere on the dashboard for weeks.

I think the longest I went with one on was for about two miles on a Ford
Escort where the light was put somewhere as an afterthought as it was
designed in originally on that model a MK2 I think it was.

It had been turned on by the MOT tester and not turned off, subsequently I
always checked and found the same after a couple of MOT tests. It was
almost as if they did that as some sort deliberate party trick.

GH



I have 10 plate van that turns the fog lights off with the ignition (but
will start up with the headlight on) and a 62 plate car that I have no
idea what happens with them as I have never used them other than to
check the lamps work.

--
Adam

On 23/01/2020 13:50, Tricky Dicky wrote:
Rear fog lamps should only be used when dipped headlights are used. On most modern cars the fog lamps will not come on unless dipped headlamps are on certainly on our Kuga that is the case and if the ignition is turned off the fog lamps will not come back on without being switched on again.


The van will only allow the rear fog light on if the front fog lights
are on. This can be done with what I used to call side lights but I have
now been told are called parking lights.

This might be useful if the fog is reflected by the higher headlights.


--
Adam

On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Anyone ever fully understood why we only have one high intensity rear fog lamp?

"polygonum_on_google" wrote in message
...
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear fog
lamp?

Presumably so it isnt easily confused with a car coming towards you.

On 23/01/2020 20:36, polygonum_on_google wrote:
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Anyone ever fully understood why we only have one high intensity rear fog lamp?

Two rear fogs on my car, and two on the one before it.

On 23/01/2020 20:36, polygonum_on_google wrote:
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Anyone ever fully understood why we only have one high intensity rear fog lamp?

got two other cars with only one....not a problem

"polygonum_on_google" wrote in message
...
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear fog
lamp?

This has always puzzled me. Tail lights are at the extremities of your
vehicle so as to define its width to a vehicle that is approaching from
behind so it can judge how far away it is from you. In fog, tail lights
cannot be seen from very far away, so rear fog lights serve the same
purpose. So there need to be two of them, co-located with the tail lights.

But no, most cars only have one, on the offside. On my previous (older)
cars, there was a bulb holder and red housing on the nearside, wired in. All
it needed was to put a bulb in there and I had two foglights. But my present
car only has a red housing on the offside (for a fog light) and only has a
white housing on the nearside (for a reversing light). It's not just a case
of fitting missing bulbs to give two foglights and two reversing lights.

When I'm reversing into a narrow opening between two gateposts, it is very
useful to have reversing lights on *both* sides, so they light up *both*
gateposts. In the absence of two reversing lights, I usually put on my rear
foglight as a (red) reversing light to light the offside.

On Thu, 23 Jan 2020 12:36:12 -0800 (PST), polygonum_on_google wrote:

Anyone ever fully understood why we only have one high intensity rear
fog lamp?

Cheap car, probably only has one reversing light. Save two bulbs and
positions in the clusters...

--
Cheers
Dave.

On 23/01/2020 15:21, NY wrote:

I've not come across any cars which reset the state of the foglights
when the engine is switched off.

On my eighth car since 1991, all of them switch off rear (and front)
fogs when the ignition is switched off. Last car that had a toggle
(latching switch) was an 1984 Open Manta GT/E.

Current and previous car have automatic headlights and pressing the
front or rear fogs will cause the headlights to come one if they are
off. I haven't tried with the headlights in manual to see how the fogs
work. No point have automatic headlights if you don't use them.

Current car has lights in the instrument cluster for fogs. Previous had
lights in the switches. But when the steering wheel was in the best
position for me, the fog switches and light switches were obscured. You
couldn't see if the fogs were on without moving about to see past the
wheel. They switched off anyway so poor attention meant they weren't on
for days.

My pickup has a mechanical interlock on rear fogs. You need headlamps on
for rear fog and switching off headlamps also switches off fogs. Leaving
the lights on and removing the key starts the bongs and beeps of doom.

On Fri, 24 Jan 2020 08:00:22 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


Anyone ever fully understood why we only have one high intensity rear fog
lamp?

Presumably so it isnt easily confused with a car coming towards you.

Oh, ****! And this innocent little thread was Rodent-free, so far! tsk

--
Norman Wells addressing trolling senile Rodent:
"Ah, the voice of scum speaks."
MID:

On Thu, 23 Jan 2020 21:34:34 +0000, mm0fmf wrote:

I've not come across any cars which reset the state of the
foglights
when the engine is switched off.

Mines does, and the previous two (but they were both Disco II's). Not
sure if M reg Mondeo before them did.

Current and previous car have automatic headlights and pressing the
front or rear fogs will cause the headlights to come one if they are
off.

Not tried that. B-) Hopefully you can turn the headlights off and
retain the front driving lights. Have to do that fairly often coming
over the tops in hill fog, too much bounce back from dipped
headlights to have them on.

No point have automatic headlights if you don't use them.

B-) I like mine but even though switching the car off resets the
state of the fog and driving lights to off it doesn't reset main to
dipped. So when they automatically come on next time they can come on
in main beam. As I'm almost invariable on main beam when I arrive
home at night, I have to remember to manually cancel that. Automatic
things are good, provided they get it right...

--
Cheers
Dave.

On Thursday, 23 January 2020 21:22:58 UTC, NY wrote:
"polygonum_on_google" wrote in message
...
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear fog
lamp?

This has always puzzled me. Tail lights are at the extremities of your
vehicle so as to define its width to a vehicle that is approaching from
behind so it can judge how far away it is from you. In fog, tail lights
cannot be seen from very far away, so rear fog lights serve the same
purpose. So there need to be two of them, co-located with the tail lights.

But no, most cars only have one, on the offside. On my previous (older)
cars, there was a bulb holder and red housing on the nearside, wired in. All
it needed was to put a bulb in there and I had two foglights. But my present
car only has a red housing on the offside (for a fog light) and only has a
white housing on the nearside (for a reversing light). It's not just a case
of fitting missing bulbs to give two foglights and two reversing lights.

When I'm reversing into a narrow opening between two gateposts, it is very
useful to have reversing lights on *both* sides, so they light up *both*
gateposts. In the absence of two reversing lights, I usually put on my rear
foglight as a (red) reversing light to light the offside.

Completely agreed.

Two reversing lights should be standard.

Also, when switching to LHD countries, the HIRF is on the wrong side.

Sometimes, even if there are two sockets for HIRF, actually fitting a second one will trigger the light failure/checking - it will see too much current and report as a fault.

"Rod Speed" Wrote in message:


"polygonum_on_google" wrote in message
...
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear fog
lamp?

Presumably so it isnt easily confused with a car coming towards you.



rear fogs are red you dumb **** !
--
Jimk


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

"NY" wrote in message
...
"polygonum_on_google" wrote in message
...
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear fog
lamp?

This has always puzzled me. Tail lights are at the extremities of your
vehicle so as to define its width to a vehicle that is approaching from
behind so it can judge how far away it is from you. In fog, tail lights
cannot be seen from very far away, so rear fog lights serve the same
purpose. So there need to be two of them, co-located with the tail lights.

But no, most cars only have one, on the offside. On my previous (older)
cars, there was a bulb holder and red housing on the nearside, wired in.
All it needed was to put a bulb in there and I had two foglights. But my
present car only has a red housing on the offside (for a fog light) and
only has a white housing on the nearside (for a reversing light). It's not
just a case of fitting missing bulbs to give two foglights and two
reversing lights.

When I'm reversing into a narrow opening between two gateposts, it is very
useful to have reversing lights on *both* sides, so they light up *both*
gateposts. In the absence of two reversing lights, I usually put on my
rear foglight as a (red) reversing light to light the offside.

I always back out of where I park the car at home and
its between two big trees, quite a tight fit and the wheel
is on full lock till its past the trees. The reversing lights
ate plenty bright enough to see the trees in the dark
with no street lights lighting anything back there and
no external lights of mine either.

On Thursday, 23 January 2020 21:31:06 UTC, Dave Liquorice wrote:
On Thu, 23 Jan 2020 12:36:12 -0800 (PST), polygonum_on_google wrote:

Anyone ever fully understood why we only have one high intensity rear
fog lamp?

Cheap car, probably only has one reversing light. Save two bulbs and
positions in the clusters...

Definition of "cheap car"? Certainly applies across a lot of Mercedes, VAG, and many other makes.

On Thursday, 23 January 2020 21:22:58 UTC, NY wrote:

Even odder, the legal words say:

On the centre-line or off side of the vehicle (disregarding any sidecar forming part of a motor bicycle combination)

http://www.legislation.gov.uk/uksi/1...hedule/11/made

Makes it even more difficult to assess any useful details about the vehicle in front if you don't know whether in is in the middle or at the side.

On 23/01/2020 13:32, Marland wrote:
Brian Reay wrote:
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!



I dont if it has been made a regulation but it does seem the normal
arrangement on more modern vehicles. It has certainly cut down on the
number of cars seen with a rear fog lamp still on some time after
conditions needed them.
It wasnt unusual to see a car being driven weeks or even months after the
last time the lamp was needed ,now on a more up to date vehicle the effect
of such forgetfulness* will only last till next time the vehicle is shut
down.
* or unawareness and ignorance of the extra warning light showing
somewhere on the dashboard for weeks.

I think the longest I went with one on was for about two miles on a Ford
Escort where the light was put somewhere as an afterthought as it was
designed in originally on that model a MK2 I think it was.

It had been turned on by the MOT tester and not turned off, subsequently I
always checked and found the same after a couple of MOT tests. It was
almost as if they did that as some sort deliberate party trick.

I had a Mk2 Sierra and I too found myself driving to work with the rear
fog lights on the day after an MOT. The switch had an LED in it, but was
cunningly designed to be totally hidden when in a normal driving
position. I only spotted it as I caught a slight glimmer of a reflection
in the glass of the window.

SteveW

On Fri, 24 Jan 2020 09:09:01 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:


I always back out of where I park

NOBODY gives a **** where you park or don't park, senile trolling asshole!

--
Website (from 2007) dedicated to the 85-year-old trolling senile
cretin from Oz:
https://www.pcreview.co.uk/threads/r...d-faq.2973853/

NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 13:21, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need them
when the engine is off!

Is there actually any prohibition from using them on certain types of
road. I though the only rule was the obvious one of "turn off rear fog
lights when the following car is so close that it will be dazzled by
them"?


Oh dear....

Rather than tutting, perhaps you'd like to point me to the exact
regulations. OK, so I omitted to say "only use them when it's foggy",
because I thought that was blindingly obvious, though many people seem to
use them even when it's completely clear (not even light mist).

Is there something in the highway code about classes of road or its speed
limit which regulates when they may or may not be used, despite thick fog,
subject always to the "don't dazzle" rule.



Perhaps you should stop digging.

On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Thanks for all the help it is just that the lights front and back on
this mustang have been altered for the UK and people do this so many
different ways and I have modified things a bit as well so I wasn't
quite sure this was legal......but quite happy it is now

On 23/01/2020 22:09, Rod Speed wrote:


"NY" wrote in message
...
"polygonum_on_google" wrote in message
...
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ...Â* wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Anyone ever fully understood why we only have one high intensity rear
fog lamp?

This has always puzzled me. Tail lights are at the extremities of your
vehicle so as to define its width to a vehicle that is approaching
from behind so it can judge how far away it is from you. In fog, tail
lights cannot be seen from very far away, so rear fog lights serve the
same purpose. So there need to be two of them, co-located with the
tail lights.

But no, most cars only have one, on the offside. On my previous
(older) cars, there was a bulb holder and red housing on the nearside,
wired in. All it needed was to put a bulb in there and I had two
foglights. But my present car only has a red housing on the offside
(for a fog light) and only has a white housing on the nearside (for a
reversing light). It's not just a case of fitting missing bulbs to
give two foglights and two reversing lights.

When I'm reversing into a narrow opening between two gateposts, it is
very useful to have reversing lights on *both* sides, so they light up
*both* gateposts. In the absence of two reversing lights, I usually
put on my rear foglight as a (red) reversing light to light the offside.

I always back out of where I park the car at home and
its between two big trees, quite a tight fit and the wheel
is on full lock till its past the trees. The reversing lights
ate plenty bright enough to see the trees in the dark
with no street lights lighting anything back there and
no external lights of mine either.

My Mustang doesn't have reversing lights and this is quite legal as it
wasn't made a requirement until quite recently......

On 23/01/2020 21:31, Dave Liquorice wrote:
On Thu, 23 Jan 2020 12:36:12 -0800 (PST), polygonum_on_google wrote:

Anyone ever fully understood why we only have one high intensity rear
fog lamp?

Cheap car, probably only has one reversing light. Save two bulbs and
positions in the clusters...

Duster and wagon R ...yes

On 23/01/2020 22:09, polygonum_on_google wrote:
On Thursday, 23 January 2020 21:31:06 UTC, Dave Liquorice wrote:
On Thu, 23 Jan 2020 12:36:12 -0800 (PST), polygonum_on_google wrote:

Anyone ever fully understood why we only have one high intensity rear
fog lamp?

Cheap car, probably only has one reversing light. Save two bulbs and
positions in the clusters...

Definition of "cheap car"? Certainly applies across a lot of Mercedes, VAG, and many other makes.

I love cheap cars because I am cheap .....

On 23/01/2020 20:36, polygonum_on_google wrote:
On Thursday, 23 January 2020 12:04:20 UTC, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned off?....

Anyone ever fully understood why we only have one high intensity rear fog lamp?

some very old buses have ONE rear light and it is still legal to have
them on the road and it is not an MOT failure....

On 23/01/2020 13:38, Jim GM4DHJ ... wrote:
On 23/01/2020 12:54, Brian Reay wrote:
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need
them when the engine is off!


good glad to hear that.... I was thinking that in some cars when you
turn the ignition off the headlights go off and the front fogs go off as
wellÂ* ....so I don't suppose the rear fogs going off with the ignition
is a problem...anyway at the mot I think they run the car to heat it up
to test the emissions and they check the lights when it is running
.....thanks for easing my mind on this.....

other than the fact if you break down in bad fog and do a runner away
from your car to avoid being killed by the next wummin' driver and take
the keys with you only your rear lights will be left on...not good