Technical Multipla boot lock - it's permanently locked!

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Technical Multipla boot lock - it's permanently locked!

Hi all,
we have a 54 (late shape) multi only 26,000 miles with the opposite problem.
every time we have a frost can't open the boot (the rubber was frozen soled) but i stripped it down (the switch has been replaced before we had it found a extra metal goal post shaped bit floating around inside the panel) cleaned it all up sealed the hole above were i thought water was getting in all worked fine till a few days ago were now nearly every time you pull away the boot opens... every journey taking twice as long now. getting beyond a joke on the plus side wife and kids are finding very funny.

i am a little confused reading the other comments on here our car dose not have any other way of opening the boot no key or internal release. are your cars all the old shape or is it ours being a basic model???

thanks
kev
 
All,

I too had the problem of not being able to open the tailgate on my '54 Multipla.
Following the advice here, established that the microswitch was not working (ie when operated the lock did not open and release the tailgate - there is no fuse to check) i then purchased the microswitch from my local Fiat garage (£63.36 inc VAT - THIS IS TRULY A WICKED PRICE FOR WHAT IT IS :bang: ). It is no cheaper on e-bay.

Follow these instruction to remove old switch and fit new one. .
Allow 1.5 hours.

  1. Open tailgate from the inside. There is a small metal tab which is part of the lock - the small gap between the lock housing and the lock itself will allow you to put one finger in and push the tab towards the lock. This will release the lock and the tailgate will open.
  2. Remove the plastic inner panel - 4 phillips screws, one each corner. Pull panel away - there are some plastic retainers that will pop out as you remove the panel).
  3. Remove the lower plastic moulding - this is the piece on the outside of the tailgate that holds the number plate etc. . Remove the 4 phillips screws around the outside. Then remove the 2 phillips screws on the inside of the tailgate. Then remove the 3 star headed screws just above the number plate. Pull the plastic panel away - two platic retainers will then pop out.
  4. Remove the 2 star headed screws that hold the offending micro switch in place.
  5. Dismantle the electric lead
  6. Re-fit the new switch, connect the lead and test.
  7. If all OK, then refit the tailgate plastic moulding and inside panel in reverse order of the above instructions.
This is not a particularly difficult job, and believe me, if I can do, anybody can!!:D
Hope this helps.:)

Spudd.

Thanks to Spudd for brilliant explanation, did it and further "developed" as well, as after dismantling decided to try DIY reanimation and it worked , my boot can open again.
What have I done:

1. Completely opened housing of the microswitxh (being careful not to brake plastic holdings on sides - heating with house hair dryer did the job).
As non proff mechanic wit noo proffesional tools I used two swiss knifes and "voila" - opened

2. Cleaned (brushing with small brush) entire housing from inside including outer side of actuall switch.

Where the problem was, - button on the switch itself was blocked by mud that was created by dust and moisture - and it simply could not move.
As non native English speaker, thought that "picture whatever for 1000 words so here is the atachment with pic of switch in parts before reasembling. Marked with arrows those plastic holders you have to be carefull about

Not to mention that saving is at rate of 200 Euro here in Croatia
 

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(y)To clarify things, I have just done this job here below that Spudd has excellently described. As far as I am aware this refers to Nosejob Multiplas that ONLY have an electric boot/tailgate release switch, like mine (no internal tailgate release.) (n)

Here's a tip before you spend out, though:

(y) DON'T REPLACE THE SWITCH! CLEAN IT! (y)

This can be done without dismantling the actual switch. Remove the switch as described below, from the car. Gently pull off the rubber cover and then spray WD40 around the switch and then turn it upside down and tap it on the worktop. Lots of mud and crud will come out. I kept doing this for about 5 mins, flooding it with WD40 and tapping til no more crap came out. You can feel the switch starting to work as you do this.

To test you have fixed it, reconnect the switch to it's electrics while it's in your hand, BUT pull apart the small wire connector near the lock on the tailgate. It is a sensor of some kind. If you don't disconnect this small connector while you are testing the switch, the car will sense the tailgate is open and not allow the switch to work, thus you will think you haven't fixed it!

It is a bit of a fiddle getting the rubber back into the housing, but persevere and you can do it, I promise.

:confused: Now then. Is it possible to clean the switch it while it is in situ on the car? Theoretically, I think it is. You can remove the rubber cover easily enough while it is on the car and thus you can get switch cleaner or W40 into it to the switch to flush out the crud. But I am not entirely sure that you will manage to get the rubber back into place without physically having the switch in your hand. But, if you can't you're gonna have to remove it anyway so you haven't lost anything.:p

Having done the job now, I will certainly have a go at cleaning the switch without removing it from the car next time it seizes up.

(y) I hope that this post has been a useful supplement to Spudd's superb description of the job in hand. (y)

:) Panda, Myrtle and ably assisted by Steph! :)


All,

I too had the problem of not being able to open the tailgate on my '54 Multipla.
Following the advice here, established that the microswitch was not working (ie when operated the lock did not open and release the tailgate - there is no fuse to check) i then purchased the microswitch from my local Fiat garage (£63.36 inc VAT - THIS IS TRULY A WICKED PRICE FOR WHAT IT IS :bang: ). It is no cheaper on e-bay.

Follow these instruction to remove old switch and fit new one. .
Allow 1.5 hours.

  1. Open tailgate from the inside. There is a small metal tab which is part of the lock - the small gap between the lock housing and the lock itself will allow you to put one finger in and push the tab towards the lock. This will release the lock and the tailgate will open.
  2. Remove the plastic inner panel - 4 phillips screws, one each corner. Pull panel away - there are some plastic retainers that will pop out as you remove the panel).
  3. Remove the lower plastic moulding - this is the piece on the outside of the tailgate that holds the number plate etc. . Remove the 4 phillips screws around the outside. Then remove the 2 phillips screws on the inside of the tailgate. Then remove the 3 star headed screws just above the number plate. Pull the plastic panel away - two platic retainers will then pop out.
  4. Remove the 2 star headed screws that hold the offending micro switch in place.
  5. Dismantle the electric lead
  6. Re-fit the new switch, connect the lead and test.
  7. If all OK, then refit the tailgate plastic moulding and inside panel in reverse order of the above instructions.
This is not a particularly difficult job, and believe me, if I can do it, anybody can!!:D
Hope this helps.:)

Spudd.
 
Just found this thread - Spudd's instructions were spot on. Cheers!

However, being tight of fist, I was reluctant to pay the £81 for the switch that was listed on ebay.

So............went to Maplins and found a simple microswitch (N96AQ)
I had to snap of one of the lugs of the original microswitch holder and cut the wires - then soldered them to the terminals on the new switch - 1 & 3 I think - you may need to play around until you've got the right terminals. Then I used superglue to fix the new switch into the holder (also had to bend the metal strip[ slightly so that you have to definitely press the rubber to activate the switch) . reassembled the whole lot and so far it works!

Cost just over 2 quid and got the added bonus of extra points from partner for saving a trip to the garage!
 
Just found this thread - Spudd's instructions were spot on. Cheers!

However, being tight of fist, I was reluctant to pay the £81 for the switch that was listed on ebay.

So............went to Maplins and found a simple microswitch (N96AQ)
I had to snap of one of the lugs of the original microswitch holder and cut the wires - then soldered them to the terminals on the new switch - 1 & 3 I think - you may need to play around until you've got the right terminals. Then I used superglue to fix the new switch into the holder (also had to bend the metal strip[ slightly so that you have to definitely press the rubber to activate the switch) . reassembled the whole lot and so far it works!

Cost just over 2 quid and got the added bonus of extra points from partner for saving a trip to the garage!

Just one thing if you have a nose job Multi and you find that one day you can't open the boot because the Switch is faulty, how do you open it in the first place to actually carry out the repair?
 
It was just a guess. I'm only familiar with 'the real thing' ;).

In that case, it does seem a bit strange that there's no way to open the boot without having a battery connected.
 
Just one thing if you have a nose job Multi and you find that one day you can't open the boot because the Switch is faulty, how do you open it in the first place to actually carry out the repair?


(y) You have to climb into the boot from inside and there is a wee flick switch attached to the inner boot catch, that releases it. It is shown in the owners manual that comes with the car, if you've got one.
 
Have just bought 02 multipla and I had this problem initially. I now find that to open it using the remote switch I have to operate the switch twice. When I did open boot I looked at the latch on the boot lid and noticed two electrical contacts, small round metal discs. I cleaned these and drop of WD40 and no more problems so far. Hope this helps someone.
Irrespective the key should unlock the boot anyway...?
 
we are having similar problems with our 2007 multipla. The electric release either doesnt work (mostly) works ok (now and again) or cycles to release over and over for 30 seconds or more (occasionally)

is it likely that the switch is at fault on it?
 
Funny that I have a full boot lock set up all u need is ur lock and its for sale on eBay if u want details I can post
 
that could be useful!

no lock in ours though, its just the electric button operated job on a 2007 car.
 
Might not be the same then this worked on the button and with a key still the locking mec might be the same can u post a pic of yours and ill post one of mine to compare them
 
I have had a problem with a jammed rear door lock. It could only be opened with the little hidden latch that you have to feel for under the lock assembly.

But today I took it apart (fortunately had some star screw bits from a previous unsuccessful joust with the washing machine). What I found after removing the lower part of the boot fascia (dunno if that's the right word, but hey...) was that the latch that you press (through the rubber surround) to open the door had become dislodged. The plastic latch surround has a couple of 'V' shaped flanges which fit over moulds of a similar shape and look to me like they ought to be secured there by tiny screws. There are holes there seemingly for that purpose.

So I grabbed a couple of tiny screws (from an old Tardis in the garage as it happens), secured it and put it back together. And it works. One very happy wife as she'd been told £100 at least.

As someone else said, if I can do it, anyone can. No really!

Couldn't have done it without websites like this though.

Mark
 
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In case anybody else is experiencing the problem and wants to replace their boot release switch, I have a brand new one for sale. To buy in UK, they're around £75 inc VAT to you and me) so you could save yourself a few bob- See classified ad 29487 if you're interested. (y)
 
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