Headlight Washers

Rev Jules · 13th August 2015, 19:33

Question:

Do headlight washer jets work when the lights are switched on, or not, if so how does one make them work.

Rev Jules

stevestrat · 13th August 2015, 19:40

Headlight washers should work with every fifth operation of the screen washers but only when the lights are on.

Robti · 13th August 2015, 21:37

And only if enough water in the bottle or the windscreen ones take priority

Avulon · 13th August 2015, 22:02

As said above. turn your lights on (full lights iirc not just sidelights) and activate the screen wash - the headlight washers should activate, they will then activate every fifth time you wash your windscreen while the lights stay on. There may be a timeout if you turn the lights off and back on again - you'll have to check. They will stop washing the headlights before you get to the low washer fluid warning though so if there's any problem with the level sensor they may not work as expected. I'm assuming you've either just got a car that has them or retrofitted to your existing car? And that you have the BBUS in place and have activated the system by T4.

Rev Jules · 14th August 2015, 06:08

Quote:

Originally Posted by Avulon

As said above. turn your lights on (full lights iirc not just sidelights) and activate the screen wash - the headlight washers should activate, they will then activate every fifth time you wash your windscreen while the lights stay on. There may be a timeout if you turn the lights off and back on again - you'll have to check. They will stop washing the headlights before you get to the low washer fluid warning though so if there's any problem with the level sensor they may not work as expected. I'm assuming you've either just got a car that has them or retrofitted to your existing car? And that you have the BBUS in place and have activated the system by T4.

Hi Many thanks for the info, yes I have just got the car with them already fitted. just curious to know if they are needed for the MOT.

Rev Jules

Les4048 · 14th August 2015, 06:20

If your car has headlight washers chances are you've HID lights so they must work for the MOT

Avulon · 14th August 2015, 06:23

Quote:

Originally Posted by Rev Jules

Hi Many thanks for the info, yes I have just got the car with them already fitted. just curious to know if they are needed for the MOT.

Rev Jules

Not required if you have halogen lights - might be required if you have Xenons - but opinion is divided on the Xenon issue and appears to be up to the tester on the day. A tester may take the view that if fitted should work - best asking the test centre you normally use for their opinion, and ask them to back it up with the relevant section from the testers manual. Of course, if they work OK don't worry: never fail for working.

Rev Jules · 14th August 2015, 07:23

Quote:

Originally Posted by Avulon

Not required if you have halogen lights - might be required if you have Xenons - but opinion is divided on the Xenon issue and appears to be up to the tester on the day. A tester may take the view that if fitted should work - best asking the test centre you normally use for their opinion, and ask them to back it up with the relevant section from the testers manual. Of course, if they work OK don't worry: never fail for working.

It has Xenons!!

Rev Jules

klarzy · 14th August 2015, 07:58

Quote:

Originally Posted by Rev Jules

It has Xenons!!

Rev Jules

if you have xenons as a retrofit with no wahers / self present then you should not fail an MOT.
if you have self level or wash then it must wor for mot.

the wording of the MOT is "check any wash / self level systems present", not "make sure they are present".

13th August 2015, 19:33	#1
Rev Jules This is my second home Rover 75 Tourer+ Join Date: Mar 2011 Location: Radcliffe on Trent Posts: 10,719 Thanks: 7,308 Thanked 3,929 Times in 2,051 Posts	Headlight Washers Question: Do headlight washer jets work when the lights are switched on, or not, if so how does one make them work. Rev Jules

13th August 2015, 19:40	#2
stevestrat This is my second home ZT260 #243 (resting) Join Date: May 2010 Location: Prestonpans Posts: 22,646 Thanks: 650 Thanked 4,624 Times in 3,358 Posts	Headlight washers should work with every fifth operation of the screen washers but only when the lights are on. __________________ Steve T4 Location Map

13th August 2015, 21:37	#3
Robti Posted a thing or two MG ZT-T 190+,Rover 800 vitesse coupe Join Date: Aug 2014 Location: Hamilton Posts: 1,986 Thanks: 616 Thanked 228 Times in 210 Posts	And only if enough water in the bottle or the windscreen ones take priority __________________ Robert

13th August 2015, 22:02	#4
Avulon This is my second home 1.8t Tourer Join Date: Oct 2011 Location: Tanelorn Posts: 4,830 Thanks: 956 Thanked 1,148 Times in 916 Posts	As said above. turn your lights on (full lights iirc not just sidelights) and activate the screen wash - the headlight washers should activate, they will then activate every fifth time you wash your windscreen while the lights stay on. There may be a timeout if you turn the lights off and back on again - you'll have to check. They will stop washing the headlights before you get to the low washer fluid warning though so if there's any problem with the level sensor they may not work as expected. I'm assuming you've either just got a car that has them or retrofitted to your existing car? And that you have the BBUS in place and have activated the system by T4. __________________ Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk) Where?: https://en.wikipedia.org/wiki/Tanelorn Mods/Retrofits: PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors To do: puddle lights; 2 Din cd/nav to fit; boot release button

14th August 2015, 06:20	#6
Les4048 This is my second home Rover 75 Tourer/ MG ZT-T 400 Join Date: May 2012 Location: Lhanbryde Posts: 3,279 Thanks: 2,627 Thanked 1,523 Times in 869 Posts	If your car has headlight washers chances are you've HID lights so they must work for the MOT