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whiterdesign



Member Since: 10 Jun 2021
Location: Preston
Posts: 245
United Kingdom 
Details from service manual
Windshield washer jets

The windshield washer jets are attached on the windshield wiper arms. The washer fluid feed hose from the front/rear washer pump is connected to the jets. In line with each washer jet there is a non-return valve to prevent washer fluid draining back to the windshield washer reservoir. The non-return valves also limit the amount of washer fluid, which can be forced from the jets during cornering.

When the vehicle is equipped with heated windshield washer jets, the washer jets contain heater elements, which improve performance in cold conditions. The heater elements are controlled by the BCM/ GWM. The BCM/ GWM energizes the heater elements when the Ambient Air Temperature (AAT) falls below a predetermined temperature. 110 XS 250 MY 23 Gondwana Stone, Cold climate pack and towbar
Post #975120 19th Dec 2022 1:34pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2226
United Kingdom 
The wires must be inside the feed pipes then?
Post #975127 19th Dec 2022 2:18pm
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mse



Member Since: 06 Apr 2008
Location: UK
Posts: 5024
United Kingdom 2016 Defender 110 Puma 2.2 XS CSW Scotia Grey
Im interested as it would be interesting to see if you can retrofit Mike
Post #975221 20th Dec 2022 11:07am
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MattF



Member Since: 28 Oct 2022
Location: Norwalk CT
Posts: 32
United States 
Would a parts diagram help?

Last edited by MattF on 3rd Jan 2023 3:04pm. Edited 1 time in total
Post #975243 20th Dec 2022 2:18pm
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Hairy Dan



Member Since: 25 Apr 2013
Location: NW Durham
Posts: 1330
United Kingdom 1998 Defender 90 V8 Petrol 50th Auto Chawton White
On the parts diagram they list different wiper arms either with heated jets or without Thumbs Up Cheers Ian
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22MY Defender 110 D200 SE, Fuji White.
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Post #975284 20th Dec 2022 6:16pm
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r18wly



Member Since: 07 Jul 2021
Location: Lancaster
Posts: 6
United Kingdom 
whiterdesign wrote:
Details from service manual
Windshield washer jets

The windshield washer jets are attached on the windshield wiper arms. The washer fluid feed hose from the front/rear washer pump is connected to the jets. In line with each washer jet there is a non-return valve to prevent washer fluid draining back to the windshield washer reservoir. The non-return valves also limit the amount of washer fluid, which can be forced from the jets during cornering.

When the vehicle is equipped with heated windshield washer jets, the washer jets contain heater elements, which improve performance in cold conditions. The heater elements are controlled by the BCM/ GWM. The BCM/ GWM energizes the heater elements when the Ambient Air Temperature (AAT) falls below a predetermined temperature.


Thanks for that explanation Thumbs Up
Post #976879 6th Jan 2023 10:53am
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Nashvegas



Member Since: 25 Dec 2021
Location: Portland, Oregon
Posts: 34
United States 
lightning wrote:
The wires must be inside the feed pipes then?


This is so odd. I can't really grasp how the washer jets are heated on my 2020 X model with heated washer jets on the build sheet / window sticker.

No evidence of heating on mine anywhere. ie -- no electrical plugs going to the wiper arms whatsoever, just the rubber tubing. If it's indeed inside the tubers, how would it get "out" of the washer tube? And it would need a plug on the vehicle harness. All of which I didn't see on my car.

Just driving thru the mountains last weekend, my screen wash froze up and stopped working in a snowstorm, I wasn't thrilled. I had blue -20 degrees fluid in and it wasn't nearly that cold... So interested in detective work here.
Post #977625 11th Jan 2023 6:35pm
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