As above - does anyone know what to check in the event of windscreen washers not heating (I have D4 heated jets fitted to D3).
Frosty bonnet this morning and only the FBH corner thawing on my journey into work (they have previously worked with the tell tale defrost ring around them).
Any pointers appreciated.
Cheers,
DarrenA shapely pair of legs is one thing but a nice bum is not to be sniffed at.
Member Since: 24 Dec 2023
Location: powys
Posts: 338
APL wrote:
On D4's that are fitted with the heated front screen, the screen, heated washers and heated mirrors, together with the rear screen, all turn on automatically when the outside temp is below 5 degrees C, anyway, they will turn off after a few minutes but will come on again if the system thinks it is necessary.
So they are all automatic, to an extent!
i know this is a old post but is this correct, heated screen washer only comes on when heated screen is on. also is the heated windscreen serposed to be on for heated mirrors as mine dont work.
this would be ace if someone could answer this.
thanks guys and galshad a d1 ,d2 a land mark d4 for 3 days now have awsome d4 in orkney grey hse sdv6 my12
12th Jan 2024 7:50 pm
popsdosh
Member Since: 09 Nov 2009
Location: cambs
Posts: 442
Heated mirrors come on with heated rear window .
13th Jan 2024 7:58 am
eightfoot
Member Since: 12 Apr 2015
Location: sunny essex
Posts: 806
think they might come on when the temp drops below a certain number same as the front and rear screens annoyingly do and i didn't think mirrors heating was switchable (could be wrong though)please excuse any grammer/punctuation mistakes,i'm thick,thankyou
current vehicles 2005 d3 2013 d4
13th Jan 2024 9:15 am
faulksy
Member Since: 24 Dec 2023
Location: powys
Posts: 338
thank you popsdosh and eightfoot. i now know my heated mirrors dont work but didnt know untill last night that it ha heated windscreen washers. had a d1 ,d2 a land mark d4 for 3 days now have awsome d4 in orkney grey hse sdv6 my12
13th Jan 2024 10:18 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10678
On the D3 the mirrors and jet heater control is the same function.
A relay by the battery is pulsed on the off every few seconds.
I would first wiggle and remove the relay and refit. If that doesn't work, replace.
Also have a look at the fuses. I think there are 2, not sure
Looking at D4 wiring:
fuse 12 for jets
can't find the mirror heaters on the D4 diagram.
13th Jan 2024 11:01 am
faulksy
Member Since: 24 Dec 2023
Location: powys
Posts: 338
hi peter. thanks for that
the washers might work didnt know you had to have windsreen heater on for that to work.
is fuse 12 under the glove box or in the engine bay ?
thanks
mikehad a d1 ,d2 a land mark d4 for 3 days now have awsome d4 in orkney grey hse sdv6 my12
13th Jan 2024 6:45 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14129
Pete K wrote:
On the D3 the mirrors and jet heater control is the same function.
A relay by the battery is pulsed on the off every few seconds.
I would first wiggle and remove the relay and refit. If that doesn't work, replace.
Also have a look at the fuses. I think there are 2, not sure
Looking at D4 wiring:
fuse 12 for jets
can't find the mirror heaters on the D4 diagram.
Hi Pete
Does this help u in any way plse with regards to the D4 heated mirrors
PS, many thks also to ur good self for the awesome help as the D4 heated washer jets that i retrofitted to my D3 worked a treat
Click image to enlarge
13th Jan 2024 7:06 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10678
Thanks Gary. I did find that page.
The relay top left does say mirrors and jets (though LR do get the markings wrong sometimes)
I couldn’t see the actual connection to mirrors
Fuse 12 in engine bay.
13th Jan 2024 7:36 pm
faulksy
Member Since: 24 Dec 2023
Location: powys
Posts: 338
had a d1 ,d2 a land mark d4 for 3 days now have awsome d4 in orkney grey hse sdv6 my12
13th Jan 2024 9:05 pm
faulksy
Member Since: 24 Dec 2023
Location: powys
Posts: 338
Pete K wrote:
Thanks Gary. I did find that page.
The relay top left does say mirrors and jets (though LR do get the markings wrong sometimes)
I couldn’t see the actual connection to mirrors
Fuse 12 in engine bay.
fuse 12 is good. will see if they work tomorrow when its frosty had a d1 ,d2 a land mark d4 for 3 days now have awsome d4 in orkney grey hse sdv6 my12
14th Jan 2024 1:04 pm
sub
Member Since: 04 Jul 2022
Location: Cheshire
Posts: 99
Did you get to the bottom of this?
I've got the same issue... my fuse is fine, my windows mirrors are 'warm', but my jets are frozen solid.
My build sheet states "Front Heated Washer Jets With Heated Washer Jet (040AQ)" so I'm kinda hoping they're there!
15th Jan 2024 5:15 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8225
Remove the bonnet sound proofing and check for mouse damage, they love to nest, chew the wires and hibernate around the heated washers. It can when others can't,
It will when others won't,
It goes where others don't.
15th Jan 2024 5:24 pm
faulksy
Member Since: 24 Dec 2023
Location: powys
Posts: 338
sub wrote:
Did you get to the bottom of this?
I've got the same issue... my fuse is fine, my windows mirrors are 'warm', but my jets are frozen solid.
My build sheet states "Front Heated Washer Jets With Heated Washer Jet (040AQ)" so I'm kinda hoping they're there!
i think mine work. they wernt frozen this morning. promising -6 tonight so will find out in the morning.
left my heated windscreen on untill it timed out this morning, everything was clearhad a d1 ,d2 a land mark d4 for 3 days now have awsome d4 in orkney grey hse sdv6 my12
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but didnt know untill last night that it ha heated windscreen washers. 
