How to fit heated screens

Get ready for winter and avoid misted and frozen screens by fitting a heated windscreen kit. Gary Stretton shows how

Series Land Rovers and Defenders suffer from marginal windscreen demisting capabilities and a battle with ice inside as well as outside their screens in colder weather. Modern heated screens are fast-acting and very reliable. In the case of these Ricky Evans Motorsport screens, they are also laminated as standard, making them preferable to toughened screens should the unfortunate happen.

Although we show them here being fitted to my Series III, they are also available for Defender models. Heated screens are no more difficult to fit than standard screens, albeit with some straightforward wiring involved. The best way to tackle this job is to consider it to be two distinct tasks; fitting the screens and fitting the wiring.

Having removed your old screens, you may wish to carry out additional remedial work to the screen frames, or to the top of the bulkhead, so try to factor such work in when allowing time for the job. While the fascia top rail (dash top) is removed from your Series III, it’s the ideal time to consider recovering it, if necessary, with fresh vinyl. 

Some Series screen frames have very pronounced welds in their corners. You must factor these in when fitting the sealing strip. If necessary, grind them down slightly to avoid glass to frame contact which could crack the glass as the frames flex over uneven surfaces. The sealing strip must act as a cushion between the frame and the screens, allowing movement but also maintaining a good seal.

It’s available from caravan spares suppliers as either butyl or mastic sealant strip. The heated screens are almost identical in thickness to the original glass, meaning all the old screw holes in the angled sections are retained. Take your time with the wiring and connections, and ensure you guard the connections against moisture and damp.

I wired the screens independent of the main loom for peace of mind, and to make any troubleshooting with other circuits easier in the future. Lastly, ensure your alternator or dynamo output is high enough to power the screens when the wipers, headlamps and heater motor are all working hard to give you the best visibility possible.

Tools

Wire strippers, crimpers, wiring, heat-shrink sleeving, heat gun, spanners, screwdrivers, drill

Time: 8 hoursCost: £193*

Contact Ricky Evans Motorsport 01287 283688 www.heatedwindscreen.com *Parts prices: £83.88 per screen; relays, switches and wiring £25; sealing strip £10

Wiring

Route the wiring after deciding the switch and relay positions, to avoid guessing the wiring lengths. I sleeved the wiring in the engine bay for tidiness and to isolate it from the rest of the loom. With 25 amps of current draw to contain, I used heat shrink insulation on all terminal ends to prevent moisture, and contact with other parts. Use proper crimpers for the terminals to ensure good connections. The earth feeds should run to firm contact points (not self-tapped screws). All wiring must be correctly rated: 25 amp for the screen feeds. Relays are 25 amp, 4-pin versions, and the switch is self illuminating. A timer relay giving typically ten minutes of on time could be used, though additional wiring is most definitely required.

Recommended

'Bolloré's strategy is already having a good impact on Jaguar Land Rover'
Opinion JLR Thierry Bollore
Opinion

'Bolloré's strategy is already having a good impact on Jaguar Land Rover'

Steve Fowler says JLR CEO Thierry Bolloré's new approach is working wonders
24 Jun 2021
Jaguar Land Rover shuts two factories due to semiconductor shortage
Halewood factory
Jaguar

Jaguar Land Rover shuts two factories due to semiconductor shortage

JLR’s Castle Bromwich and Halewood factories will temporarily close from 26 April as a global shortage of semiconductors impacts production
22 Apr 2021
Land Rover extends partnership with Virgin Galactic to 2024
Land Rover Virgin Galactic
Land Rover

Land Rover extends partnership with Virgin Galactic to 2024

Land Rover will continue to support the world’s first “spaceline,” providing vehicles to ferry future astronauts to their flights
30 Mar 2021
Jaguar Land Rover reveals prototype Covid-inhibiting cabin filtration system
Jaguar Land Rover cabin filtration system
Jaguar

Jaguar Land Rover reveals prototype Covid-inhibiting cabin filtration system

In-car harmful bacteria and viruses reduced by 97 percent through Panasonic’s nanoe X technology
16 Mar 2021

Most Popular

'The death of cheap cars will be a travesty for personal mobility'
Opinion cheap cars
Opinion

'The death of cheap cars will be a travesty for personal mobility'

Our appetite for small, cheap cars is as strong as ever - although Mike Rutherford warns they may no longer be profitable
12 Sep 2021
E10 petrol explained: UK prices, checker tool and is it OK for your car?
Petrol pump
News

E10 petrol explained: UK prices, checker tool and is it OK for your car?

E10 petrol is up to 10 per cent ethanol and is available at UK fuel stations now as part of the bid to cut CO2 emissions
1 Sep 2021
What is Skoda vRS? History and best cars driven
Skoda vRS range
Skoda

What is Skoda vRS? History and best cars driven

To mark 20 years of Skoda’s vRS badge, we rounded up some of the performance cars from the past two decades that have worn the subtle green badge
17 Sep 2021