Hi Everybody,

 

I noticed today after closing the large boot lid, it is not switched back to able to open the small.

I opened it again and closed it, but I did not hear the smooth noise when switching back to able to open the small boot lid which usually did.

Is there some maintenance operation for example oiling or cleaning some parts of the twindoor for fix this problem at home?

Its occurred first after was cold weather temperature less than minus ten degree.

 

Do you have somebody same experience, or some good idea what will be the problem?

 

Thanks in advance.

 

Hi, I had a similar problem with mine, at first when closing the full boot lid it would lock on the bottom latch then take about 5seconds for the side locks to latch then when occasionally closing the full boot you could here the bottom boot catch pull in then a grinding noise and the boot rise up open again before the side locks had chance to lock, I would have to try closing the boot a couple of times before it would lock, I had the same when just using the small boot lid and then it got to a point where it would just not lock, I stripped the boot to see the locking mechanism, a electric motor pulls a toothed bar which in turn pulls the soft close locking pin down, there is a spring that pulls the mechanism back the other way when you open the boot. The problem I found was the teeth had worn out on the bar at the locked position so the motor couldn't hold the pressure of the spring and the mechanism would open again, there must be a switch in the body of the mechanism that needs to be made when the lock is closed so the side locks pull in.
A quick fix I found for this was to remove the spring so the mechanism stays in, it won't soft close in and out like it should and just stays in so you will need to slam the boot a little harder but the locking works as it should.
I struggled to find a new lock so had to resort to breakeryard.com, took a photo of the part and the part number and got a reply with in a couple of hours! cost me £60 for the part with a month warranty, when it was fitted it sorted all the problems I'd had.

 

See the pic I've hopefully attached, the blue arrow points to the tooth bar of the mechanism that had worn out on mine and the red arrow points to the spring I removed, I believe the part number is 4f9 827 383

 

Hope this helps

Edited 2 January, 201511 yr by yesman

Could the mechanism simply be frozen?

Hello

 

Thank you of your reply!

The door latch mechanism not frozen, the temperature few days ago became to warmer (+1, +2)

There is a post in the technical guide section on a wiring fix to the twin door, this could solve your problem. broken wire in the loom where the sedan hinges with the glass part of the hatch back window, no power to your wing motors.

Thank you!

Another experience, when I started to drive and the speed reached the limit of doors latching, the boot lid turned to switch back to able open the small boot lid.

Hi

I was in the service, I got an offer for replace complete cable set of twindoor.
It is really expensive the cost of cable set is ~110GBP the replace fee 100GBP.

 

I hope I will able to fix it by myself. :-)
 

Hi All,

 

I fixed the twindoor problem.

More wire was broken, I cleaned the end of the wires and soldered the ends and put the soldered joins into heat shrinkable tube.

Which only damaged and not broken, I fix it with insulating tape.

 

Here are some images

 

Critical part of cable, curving

 

Three cables fixed

 

All cables fixed

 

I used about 20cm heat shrinkable tube, 100cm insulating tape, 10cm soldering tin, and I spent with this operation 6 hours.

Good fix, what do you think caused the wires to break?

 

Are they located in a position that allows the wires to remove with the opening and closing of the boot lid?

Good fix, what do you think caused the wires to break?

 

Are they located in a position that allows the wires to remove with the opening and closing of the boot lid?

Thanks.

The insulation part of the cable is become to hard over the years, that plastic is poor quality.

I would have used wire with more elastic for example silicone insulation part.

Hi All,

 

Do somebody know what is the part number of cable set which I fixed?

I tried to identify it, on this parts catalogue but I'm not sure which is the part number(s).

Or on this part catalogue.

 

Maybe this one 3T0971145 or this 3T0971147J ?

 

Thanks in advance.

Edited 16 March, 201511 yr by ujtordai