Heated Front Screen on a 90

M

Mark Solesbury

Guest

• Nov 30, 2005

• #1

Hello

On my 1990 90 it has a heated front screen. This was fitted to the vehicle
after the normal one was broken and the non heated was out of stock.

There is no wiring for it, so it does not work! Does the screen need to be
removed to gain access to wire it in? Is it just a new feed from the fuse
box, via a switch on the dash, and of to the screen?

Mark.

1990 90

 

B

Badger

Guest

• Nov 30, 2005

• #2

"Mark Solesbury" <[email protected]> wrote in message
news:[email protected]...
> Hello
>
> On my 1990 90 it has a heated front screen. This was fitted to the vehicle
> after the normal one was broken and the non heated was out of stock.
>
> There is no wiring for it, so it does not work! Does the screen need to be
> removed to gain access to wire it in? Is it just a new feed from the fuse
> box, via a switch on the dash, and of to the screen?
>
> Mark.
>
> 1990 90

Screen has 3 connections, one at either end and a common terminal in the
centre, all at the bottom, easily accessible when the upper trim of the dash
is removed. Connect them as either a power feed to each end and earth the
centre, or earth the 2 ends and power to the centre, either way works fine.
Must be a relay in the circuit, it draws a fair current, I used an
illuminated switch from a breakers yard and a separate heavy-duty power feed
from an auxilliary fusee box that I have fitted, and a 40A relay. Works
great!
Badger.

 

S

Simon Oates

Guest

• Dec 1, 2005

• #3

It's also worth looking at

http://www.lrm.co.uk/archive/technical/screenheater.html

Best wishes
Simon


"Mark Solesbury" <[email protected]> wrote in message
news:[email protected]...
> Hello
>
> On my 1990 90 it has a heated front screen. This was fitted to the vehicle
> after the normal one was broken and the non heated was out of stock.
>
> There is no wiring for it, so it does not work! Does the screen need to be
> removed to gain access to wire it in? Is it just a new feed from the fuse
> box, via a switch on the dash, and of to the screen?
>
> Mark.
>
> 1990 90
>
>

 

J

Jon

Guest

• Dec 1, 2005

• #4

On Wed, 30 Nov 2005 16:06:11 +0000 (UTC), "Mark Solesbury"
<[email protected]> wrote:

>Hello
>
>On my 1990 90 it has a heated front screen. This was fitted to the vehicle
>after the normal one was broken and the non heated was out of stock.
>
>There is no wiring for it, so it does not work! Does the screen need to be
>removed to gain access to wire it in? Is it just a new feed from the fuse
>box, via a switch on the dash, and of to the screen?
>

Anyone know if these will kill GPS signals? I know they do in other
cars (Citroens are particularly crap for this) and i have heard the
new RR is poor too?

...just incase I ever need a new screen!

jon

 

J

John Greystrong

Guest

• Dec 1, 2005

• #5

Jon wrote:
> On Wed, 30 Nov 2005 16:06:11 +0000 (UTC), "Mark Solesbury"
> <[email protected]> wrote:
>
>
>>Hello
>>
>>On my 1990 90 it has a heated front screen. This was fitted to the vehicle
>>after the normal one was broken and the non heated was out of stock.
>>
>>There is no wiring for it, so it does not work! Does the screen need to be
>>removed to gain access to wire it in? Is it just a new feed from the fuse
>>box, via a switch on the dash, and of to the screen?
>>
> Anyone know if these will kill GPS signals?

Not completely but enough to need a different aerial.

> I know they do in other
> cars (Citroens are particularly crap for this)

Citroens don't have heated screens, they have that blue coating thing
that has much the same effect on GPS signals.

John

 

L

Lee_D

Guest

• Dec 2, 2005

• #6

John Greystrong <[email protected]> uttered summat worrerz funny
about:

>> Anyone know if these will kill GPS signals?
>
> Not completely but enough to need a different aerial.
>
>> I know they do in other
>> cars (Citroens are particularly crap for this)
>
> Citroens don't have heated screens, they have that blue coating thing
> that has much the same effect on GPS signals.
>
> John

On my laptop with GPS mouse the signal was very poor on an aftermarket
heated windscreen on a RRC.
Same on a Disco with factory fit windscreen.

Using a Mio with built in GPS it was fine.

Depends on kit ultimately.

Both sets of kit were the cheap end of the market.

Lee D

 

M

Marc Draper

Guest

• Dec 4, 2005

• #7

In message <[email protected]>, Jon
<[email protected]> writes
>Anyone know if these will kill GPS signals? I know they do in other
>cars (Citroens are particularly crap for this) and i have heard the
>new RR is poor too?


You have two problems with GPS and Defender screens

1: the heated element does effect the signal quite badly.

2: The screen is near vertical and gives a limited view of the sky.

Put these two together and you get intermittent reception.

My new 110 CSW XS is awful for GPS reception and my "off road" 90 is
just as bad due to the shadow caused by the external roll cage.

Both have been cured by using external GPS antennas.
--
Marc Draper