key fob replacement

Wanderer

Wanderer

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5,791
And u can remove the transponder with nail varnish remover - easy! Let it soak - sorted!
 
Scaf

Scaf

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6,547
montravia said:
The Chinese key cases finally arrived, ....... from Birmingham with a premium price.
I followed the threads kindly listed by Mark.
Well, one is done.
  1. The replacement case isn't the same sturdiness of the original. Didn't expect it to be, but although the two halves close up when screwed, they work apart at the top.
  2. This is a one way process. Dismantling the original seems only possible by its destruction.
  3. The Maserati logo hiding the screw that holds the two halves together is impossible to remove and attempts more or less irretrievably damaged it. Using the hair drier technique until the logo was just too hot to touch failed to loosen it. I drilled it. You can see where, which uncovers the screw. Don't drill the screw


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  1. The replacement electrical contacts aren't much up to much, and fall out. I used the original battery tray, the button contacts, and lower curved item that sits on a lugg.
  2. The transponder is in the upper cavity. Impossible to retrieve. I used a cutting disc, gingerly, don't cut the transponder. It looks like a long thin filament, but most of it is 'glue', with the grain hiding inside. I installed it with a dab of silicon sealer.



View attachment 72573

The completed key unlocks and locks the car and the boot, so the buttons work.

Here's the old now damaged case next to the new one. If I did the second case, I'd probably put several coats of clear lacquer on it, to ensure a little more durability

View attachment 72574


I have a question.
I've no idea whether I've damaged the transponder, I don't think that I have.

Would the doors unlock without the transponder, or does the transponder just enable the ignition? I haven't tried the ignition as the car is securely covered up.

I'm deferring destroying the second key until I'm satisfied all is working correctly out of range of the unadulterated key.

Anyone know before I troll up the road out of range of the other original key, and find myself stranded

Not sure that I couldn't live with the original dodgey key

Robin
Click to expand...
What was wrong with your original case - it looks fine in the pics
 
Wanderer

Wanderer

Member
Messages
5,791
I cant think what would have caused that - key blade, and transponder is all you really need. Unless you damaged the transponder removing it. How did you do it?
 
montravia

montravia

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Messages
1,620
From bad to worse
Just started her up with the decent key. A flash of what looked like a key on the dash. That was with the decent key.
Fine.
Removed and moved the decent key to a safe distance.
Inserted dodgy key, turned to ignition, car completely closed down. Key trapped in the ignition can't extract. No electrics.
Can't open the boot to get to the MX5 Charger.

Anyone, anyone any ideas please?
Remind me where the boot release cable is on the GT 2007?

Robin
 
CatmanV2

CatmanV2

Member
Messages
48,691
There's a small plug behind the ignition barrel. Remove the cover and insert a biro refill or similar to release your key.

The cable is under the passenger side rear seat.

C
 
montravia

montravia

Member
Messages
1,620
Thanks Cat and bless you.
Found the cable. Boot open. Charger on. Showing 4 fully charged.
Strange spasmodic sounds behind the dash. Park brake indicator came on. Got the old key out. Tried the new key. Lit up and immediately closed down. Good key now jammed. Strange micro seat movement as if trying to ho Comfort on shut down.
 
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