Thread revival - when in 2001 was the heated screen introduced? Just wondering whether mine - a model registered in March 2001 - would have this? Will the fuse-board have a tell-tale slot allocated to it? I'll investigate further - as there are a couple of stone chips that might necessitate a windscreen replacement come MoT time...
Heated front screen switch
- Thread starter Bigboned
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Nodge68
Well-Known Member
- Posts
- 32,504
- Location
- Near Newquay
Is your a 1.8K? If so then the HFS wasn't an option. I think this was due to the 1.8 having a small alternator.
The HGS is powered by the seperate slave fuse box and relay, fitted next to the under bonnet fuse box.
I've arrowed it in this picture of my TD4 engine bay.
Hmm - bad for me, good for you dog-man, because the answer for you is yes (assuming yours is a FL1)
I've fitted a HFS to my MGF race car (no heater, so needs a way of clearing the screen!) It does load the alternator when it is on, but Mk1 MGFs use a Magneti Marreli alternator rather than the later (less reliable!) Bosch version.
My FL alternator is covered in oil (that non-sealed cam ladder bleeding oil all over the exhaust side of the engine!) but it sounds like bad news. No wires is no wires. Happy to make my own loom, but it won't be as nice and straightforward.
On a more positive note, it looks as though I may be able to retrofit heated front seats...
I've fitted a HFS to my MGF race car (no heater, so needs a way of clearing the screen!) It does load the alternator when it is on, but Mk1 MGFs use a Magneti Marreli alternator rather than the later (less reliable!) Bosch version.
My FL alternator is covered in oil (that non-sealed cam ladder bleeding oil all over the exhaust side of the engine!) but it sounds like bad news. No wires is no wires. Happy to make my own loom, but it won't be as nice and straightforward.
On a more positive note, it looks as though I may be able to retrofit heated front seats...
Nodge68
Well-Known Member
- Posts
- 32,504
- Location
- Near Newquay
Yes it's an easy, if expensive retro fit.
I deliberately rejected cars that didn't have the HFS when I was looking for a Freelander.
Nodge68
Well-Known Member
- Posts
- 32,504
- Location
- Near Newquay
There's nothing to stop you fitting one. As long as you are aware that excessive use could flatten the battery.Hmm - bad for me, good for you dog-man, because the answer for you is yes (assuming yours is a FL1)
I've fitted a HFS to my MGF race car (no heater, so needs a way of clearing the screen!) It does load the alternator when it is on, but Mk1 MGFs use a Magneti Marreli alternator rather than the later (less reliable!) Bosch version.
My FL alternator is covered in oil (that non-sealed cam ladder bleeding oil all over the exhaust side of the engine!) but it sounds like bad news. No wires is no wires. Happy to make my own loom, but it won't be as nice and straightforward.
On a more positive note, it looks as though I may be able to retrofit heated front seats...
With the MGF, I use the heated rear screen circuit to drive the HFS circuit relay. This means that the HFS will only work once the engine sensor sees an oil pressure (i.e. it is running and charging the battery via the alternator!) and will automatically switch off after about 10 minutes.There's nothing to stop you fitting one. As long as you are aware that excessive use could flatten the battery.
On the FL, is this done in a similar way on the MGF - i.e. the timing is done via the multifunction/ body control unit? And is the same BCU fitted to all models of FL?
Joe_H
Well-Known Member
- Posts
- 1,486
- Location
- Brit in Northern Portugal
Hi Rob, the BCU changed around 2001 > /////// it was originally a 27VT Lucas - and various models / firmware of such..
Then - I believe they changed to an EWS-3D unit.... I do not have much info so that may be bo11ox lol
Nodge68
Well-Known Member
- Posts
- 32,504
- Location
- Near Newquay
The CCU does HFS timing. But I can't see why an independent system can't be installed. There are HRW/ HFS timers available which could be used for a retrofit
Joe_H
Well-Known Member
- Posts
- 1,486
- Location
- Brit in Northern Portugal
There is also a simple 555 timer ic and a transistor / mosfet circuit that would do the same (scribble on request) lol - - - or even a capacitor and resistor / mosfet that would also workThe CCU does HFS timing. But I can't see why an independent system can't be installed. There are HRW/ HFS timers available which could be used for a retrofit
...ANY simple delay circuit is good enough providing it can switch the current - hence the mosfet - a simple capacitor and resistor would work - really... it is no big deal...
Nodge68
Well-Known Member
- Posts
- 32,504
- Location
- Near Newquay
You can use a home made timer following instructions from Joe. Or you could get a proprietary relay like this one
http://www.12voltplanet.co.uk/12v-universal-heated-rear-window-timer-relay-10-min-delay.html
http://www.12voltplanet.co.uk/12v-universal-heated-rear-window-timer-relay-10-min-delay.html
teddywood1
Well-Known Member
- Posts
- 5,558
- Location
- stoke-on-trent
when I enquired about an upgrade for a hfs it would cost an extra £300 because that how much more they cost but If I got my own and had it fitted it would be around £90
because I had already brought the windscreen
because I had already brought the windscreen
Last edited:
teddywood1
Well-Known Member
- Posts
- 5,558
- Location
- stoke-on-trent
there was some for sale on ebay once new old stock
