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Intercept



Member Since: 27 Feb 2017
Location: Suffolk
Posts: 587
United Kingdom 2002 Defender 110 Td5 Black LE Java Black
Demisting Upgrade
I'm aware of the kits that involve removing the dash and inserting additional vents into the ends to demist the side windows, but has anyone here fitted these surface mount alternatives? Are they any good? How do they look once fitted?

http://defenderupgrades.co.uk/product/defender-demister-set-2/
Post #691432 6th Mar 2018 2:06pm
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mrd1990



Member Since: 16 Aug 2012
Location: Wales
Posts: 600
Wales 2000 Defender 110 Td5 CSW Epsom Green
I have them fitted, pretty good and worth it overall on longer trips but not perfect.

They demist the front bottom quarter quickly enough, but the rest of the window takes a while to clear.. I'm usually at my destination by then, add in engine warm up time and it isn't a replacement for your sleeve.
Post #691440 6th Mar 2018 2:24pm
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Intercept



Member Since: 27 Feb 2017
Location: Suffolk
Posts: 587
United Kingdom 2002 Defender 110 Td5 Black LE Java Black
Good info - thanks. Are you able to share a photo?
Post #691467 6th Mar 2018 4:08pm
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AJC



Member Since: 30 Nov 2015
Location: Lancashire
Posts: 1364
United Kingdom 
The MUD Uk kit is better in my opinion
Post #691471 6th Mar 2018 4:25pm
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AJC



Member Since: 30 Nov 2015
Location: Lancashire
Posts: 1364
United Kingdom 
http://www.mudstuff.co.uk/defendervent.html
Post #691472 6th Mar 2018 4:30pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
The adjustable lower vents that I do if pointed in the right direction will demist the side windows Thumbs Up

http://www.defender2.net/forum/topic59006.html 2002 90 Td5 Station Wagon
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Post #691486 6th Mar 2018 5:29pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410
United Kingdom 
These are both flawed, but they are also better than the standard setup.

I went for the Mudstuff version in the end. Bit of a fiddle to fit, but works well once the heater has warmed up.

Always thought that the being able to re-circulate the warmer inside air would make an awesome modification... But how...!?!

At one point X-Eng were looking at fitting an electric element to the heating system to speed up the process of de-misting, but I do not know how far he got.
Post #691488 6th Mar 2018 5:44pm
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mrd1990



Member Since: 16 Aug 2012
Location: Wales
Posts: 600
Wales 2000 Defender 110 Td5 CSW Epsom Green
Intercept wrote:
Good info - thanks. Are you able to share a photo?

Have a look at this thread http://www.defender2.net/forum/topic33126-15.html




geobloke wrote:
At one point X-Eng were looking at fitting an electric element to the heating system to speed up the process of de-misting, but I do not know how far he got.

I've toyed with that idea, but 1kw of heating would be required which combined with headlights and other stuff would exceed the alternator output or put it under strain inevitability causing it to fail prematurely.

A second alternator and mounting kit is £200 plus another £50 for wires and heating elements which is more than a sleeve...

Also remember, the hotter the inside of the car, the more the unheated windows will mist up.

The only true way to demist is with a 20,000+ btu AirCon system Laughing
Post #691509 6th Mar 2018 6:33pm
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Intercept



Member Since: 27 Feb 2017
Location: Suffolk
Posts: 587
United Kingdom 2002 Defender 110 Td5 Black LE Java Black
grafty99 wrote:
The adjustable lower vents that I do if pointed in the right direction will demist the side windows


Sadly not on an aircon equipped Td5. The aircon blower is good for circulating dry air, but it always cools. Maybe a simple modification to the switch wiring could allow the fans to run without engaging the compressor... Does anyone have the schematic handy?

Last edited by Intercept on 7th Mar 2018 12:52pm. Edited 1 time in total
Post #691694 7th Mar 2018 12:23pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324
United Kingdom 
I had a set of the dash-top demisters on my old TD5 and they were pretty good. Ultimately though, either them or the Mud solution are limited by the weedy heater fan. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

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Post #691696 7th Mar 2018 12:36pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410
United Kingdom 
Intercept wrote:
grafty99 wrote:
The adjustable lower vents that I do if pointed in the right direction will demist the side windows


Sadly not on an aircon equipped Td5. The aircon blower is good for circulating dry air, but it always cools. Maybe a simple modification to the switch wiring could allow the fans to run without engaging the compressor... Does anyone have the schematic handy?


Ooo cheeky recirculating system plan... Thumbs Up The aircon condenser on Miffy rotted away, so removed it last summer. I do mean to replace it but it is just not a priority. However adapting it to recirculate could be an interesting project.
Post #691700 7th Mar 2018 12:57pm
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Intercept



Member Since: 27 Feb 2017
Location: Suffolk
Posts: 587
United Kingdom 2002 Defender 110 Td5 Black LE Java Black
Correction: the Td5 aircon controls do allow the fan to be used without engaging the compressor. Obviously this won't dry the circulated air, but a 5 mile lunchbreak drive with the heater on max into the footwells saw the aircon vent air temperature hit 20C which was 5C higher than the cabin ambient. Hardly toasty, but the coolant temp gauge was still only just above the blue zone at the end of the test run.

Engaging the compressor will dry the air as well as cooling it, so might have some side-window demisting ability with the aircon vents aimed sideways. But the cabin would be very draughty and the wife would complain of frozen knees.

Experiments continue...
Post #691722 7th Mar 2018 2:38pm
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Dieseljock



Member Since: 03 Jun 2017
Location: Inverclyde
Posts: 31
Scotland 2003 Defender 90 Td5 HT Zambezi Silver
Just bought a set of grafftys adjustable lower vents and they do a brilliant job of clearing the side windows
Post #691792 7th Mar 2018 7:33pm
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