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 Mk4 Style Key conversion guide

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guy
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PostSubject: Mk4 Style Key conversion guide   Fri Nov 13 2009, 08:25

Mk4 Style Key conversion guide
Right, hopefully this how-to will help you change your old (boring) key into a new �switchblade� style key.
Firstly, you will need:
-A copy of your original car key
-A new style key fob, with matching key blade � got mine for just �7 off ebay
-A hammer
-A small drill bit, between 1 and 1.5mm
-A permanent marker
-A vice, or clamp/s
-A junior hacksaw
-A file
-A drill (not entirely necessary)
If you have one, a Dremel style cutting tool can be used instead of a hacksaw. This even better than a hacksaw, although a hacksaw is just as good.
Firstly, press the fob so that the key flicks out, and hold it open so that its at 90 to the fob. There is a little pin that should be visible: this needs to be hammered out using the drill bit and hammer.

Once this is out, pull the key blade out of the fob. Make sure you don�t lose the pin, or blade!

Lie the original blade on top of your car key, preferably clamping them together, and draw round it using the marker pen.

Now put your key into the vice, or clamp it to a workbench, blade pointing downwards, and cut across horizontally. Don�t cut too close to the line you drew.

Now cut vertically on both sides so that you�ve cut out the general shape, like so

Now file down to the line you drew.

Once you�ve done that, check it against the original blade. Now all you have to do is keep checking your key against the original, and keep trying it in the fob. Remember that you can take more metal off, but cant put it back on again!

When the blade is filed down to the right shape, and it fits, ask a friend to hold the key and blade together at 90, half way open, or clamp it. You�ve now got to drill through the hole that the pin sat in. I didn�t think a 1mm drill bit was big enough, so used a 1.5, although this was very snug.
Once this is done, hammer the pin back into the hole, and voila.


NB
-If you haven�t got/don�t want to drill the hole, then if you mark it with the marker you could dremel or saw it.
-Some of the keys have another little dip, perpendicular to the one the pin sits in. this will also need to be cut I think. Mine didn�t have this dip though.
-If you have an immobiliser, take the chip out of your original key and put it inside the new fob case, as close as you can get to the blade. I have seen a pic of this, so will try and find it for you all!
-For those of you with RCL, the circuit board can be swapped with the original, so you can even use the fob buttons on your alarm system, although this is just what I�ve been told, again.
Hope I�ve remembered everything!
These are the pics for fitting the immob. chip.
The immob chip location:

The place to drill the new hole:

The length to drill:

_________________

'08 LWB T5 Transprter. '90 MK2 3dr 1300 in white. '95 Mk3 3dr VR6 Highline. '97 mk4 5dr gti 20vi n indigo, '00 mk4 3dr Gti 20v, '91 MK2 5dr GTI in black.
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damo c

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PostSubject: Re: Mk4 Style Key conversion guide   Thu Jul 21 2011, 08:23

great guide, just done this using a audi key,
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matty_mk1

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PostSubject: Re: Mk4 Style Key conversion guide   Thu Jul 21 2011, 10:11

chaz got a flip key of ebay with a blank blade which is the same as the key she has now. so just needs that blank cutting to match hers and swap the chip over Smile
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Lupton_20vt

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PostSubject: Re: Mk4 Style Key conversion guide   Thu Jul 21 2011, 11:22

matty_mk1 wrote:
chaz got a flip key of ebay with a blank blade which is the same as the key she has now. so just needs that blank cutting to match hers and swap the chip over Smile

Just remove the blade of her old one dude?
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matty_mk1

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PostSubject: Re: Mk4 Style Key conversion guide   Thu Jul 21 2011, 13:18

Lupton_20vt wrote:
matty_mk1 wrote:
chaz got a flip key of ebay with a blank blade which is the same as the key she has now. so just needs that blank cutting to match hers and swap the chip over Smile

Just remove the blade of her old one dude?

old one the same shape to fit the flip key
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