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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 11 Oct 2021 :  16:57:34 Show Profile Reply with Quote
Has anyone tried to fit central locking to the 96?

It's the one downside of classic motoring......this constant fiddling with keys, especially when there is more than one key involved!!!

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

melle
V4 Guru

United Kingdom
3418 Posts

Posted - 11 Oct 2021 :  22:10:17 Show Profile Reply with Quote
72sonett3 has.

www.saabv4.com
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 14 Oct 2021 :  13:52:28 Show Profile Reply with Quote
Having completely removed the door latch mechanism, from the passenger door, and WD40, oil and greased everything, and moving the strike plate on the car body around, the door closes much more easily, and also closes completely to give a nice clean shut line. Didn't have this before.
It also closes nicely, completely, without needing a good bang.
I realised that the door latch has two positions, half closed, (which is what that door's been doing up to now), and full closed.

Upon looking closely at how it works I can see that on the latch that is operated from the little mushroom shaped button, on the inside of the door, there is a second "leg" so to say, with a small hole.

This could be used, as an actuation point for an electromagnetically operated arm of a central locking system.

One down side is, if the central locking system was fitted, and it failed, (ie flat battery, or whatever), when the car was locked, there would be no way to get into the car. That positive locking system, actuated by pushing down on the knob set into the top of the inside of the door, cannot be overidden with the key in the push button.

Could possibly force entry through the boot.
Just musing.................






1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

Edited by - andydeans3 on 15 Oct 2021 17:58:34
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Woody
V4 Guru

United Kingdom
2549 Posts

Posted - 14 Oct 2021 :  15:54:04 Show Profile Reply with Quote
"Could possibly force entry through the boot."

Had to do that in the 80's, when I tried to open driver's door and the lock failed, Passenger door was locked with the button, so had to go in via the boot. Work colleagues found this highly amusing.
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 14 Oct 2021 :  17:11:46 Show Profile Reply with Quote
I suppose I could leave the rear seat back of the latches to make it easier. - though I now realise that the seat can be released from inside the boot.
I see aftermarket central locking systems for as little as 25 on Flea Bay.....cheap Chinese junk I suppose.....
Can anyone recommend a decent brand name?
Has anyone actually tried to do this?



Back in the 70s my mate locked himself out of his 96 with those door mounted dead locks, and the engine was running!!!!!!

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

Edited by - andydeans3 on 18 Oct 2021 19:04:24
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72sonett3
V4 Fanatic

Spain
264 Posts

Posted - 16 Oct 2021 :  22:00:49 Show Profile Reply with Quote
Yes, I did, both in my '77 96 and in my '72 Sonett.

I bought a kit with two 'motors', an ECU/receiver, two remote controls and a wiring harness. I also added a relay (parallel to the motors) that switches the turn indicators on while locking.

Installation is relatively straightforward. Most difficult was drilling matching holes in the doors and A pillar for the wiring to go through and passing the harness through without kinking the wires when the door opens/closes.

The motor has a rod that clamps to the existing rod from the mushroom button. Manual locking remains functional, no fear of locking yourself out.
With this central locking kit installed, both doors also lock/unlock when one mushroom button is pushed/pulled.
--
'72 97
'77 96L conv.
'95 900SE conv.
'99 9-3T
? 006

Edited by - 72sonett3 on 16 Oct 2021 22:05:24
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 21 Oct 2021 :  23:24:07 Show Profile Reply with Quote
Well I bought a remote locking system from Hawk Direct, very cheap at 25, perhaps too cheap. Time will tell.
It's a work in progress, but some photos below.

Rigged up everything on a board to see if it worked.
A 4 mm hole was drilled in the operating arm, close to where the manual lock/unlock bar connects.



Everything back in the passenger door, with the solenoid fitted near the bottom of the door.



Click open!!


Click closed!



Just got to do the drivers now, and find a place to hide the control box, up inside the front of the car.

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro
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72sonett3
V4 Fanatic

Spain
264 Posts

Posted - 21 Oct 2021 :  23:44:36 Show Profile Reply with Quote
Now the rod is difficult to adjust, I used a 2nd rod and clamped that to the motor rod. Easy to adjust.

I pushed the antenna wire in the rubber window seal.

--
'72 97
'77 96L conv.
'95 900SE conv.
'99 9-3T
? 006

Edited by - 72sonett3 on 21 Oct 2021 23:46:45
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 22 Oct 2021 :  01:32:55 Show Profile Reply with Quote
72Sonnett.
There's nothing to adjust, it works very well.
I'm not sure what you mean by "pushing the antenna into the window seal"
There is no "antenna".

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro
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72sonett3
V4 Fanatic

Spain
264 Posts

Posted - 22 Oct 2021 :  08:33:59 Show Profile Reply with Quote
Mine is a wireless central locking with 2 remote controls. The receiver/ECU has an antenna wire hanging out. I pushed that wire between the rubber seal and the glass.

The actuator (electric motor, not a solenoid) pulls/pushes on the mushroom button rod so the movement of the motor has to be synchronised with the movement of the button. To do that I used a screw clamp to connect the two rods.

--
'72 97
'77 96L conv.
'95 900SE conv.
'99 9-3T
? 006
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 22 Oct 2021 :  20:33:31 Show Profile Reply with Quote
Ah, I see.
This system is a simple electromagnetic solenoid.
Works very well.

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro
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72sonett3
V4 Fanatic

Spain
264 Posts

Posted - 23 Oct 2021 :  11:00:42 Show Profile Reply with Quote
The actuator has a small electric motor with a rack and pinion, and only two wires. Reversing polarity makes the motor go one way or the other.

A solenoid (2 solenoids actually) would need 3 wires: one common, 1 to push, 1 to pull.

The driver side actuator has 5 wires: 2 for the motor and 3 for a built in switch that switches the passenger side actuator. If the driver side button is used to lock/unlock the door, the pass. side follows.

--
'72 97
'77 96L conv.
'95 900SE conv.
'99 9-3T
? 006
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melle
V4 Guru

United Kingdom
3418 Posts

Posted - 23 Oct 2021 :  12:46:35 Show Profile Reply with Quote
My 900 has a similar system fitted (apparently dealer fitted in 1988, the actuators are Saab but the rest looks generic). I would often find the doors unlocked in the morning when I was sure I locked them the night before. After replacing the ECU and the key fobs it still had the same problem, so I'm assuming it's either very easy to accidentally push the button and unlock the doors, or they occasionally unlock at their own accord when the remote is nearby. I've removed the remote from my keyring and I've never had an issue since (apart from not having remote central locking...)

www.saabv4.com
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 25 Oct 2021 :  21:45:37 Show Profile Reply with Quote
Melle
Our modern car, and that of my oldest son, often lock themselves!


1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro
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andydeans3
V4 Guru

United Kingdom
1579 Posts

Posted - 01 Nov 2021 :  05:43:43 Show Profile Reply with Quote
All done now, what a whizz, click-click!
Let's see how long it lasts......it only cost 25 quid.

One downside to be aware of. If for any reason the system fails, (ie flat battery for example), when you come back to your car, the only way of getting it unlocked, is crawling in through the boot, and pulling the door latch up, from the inside!
Hopefully won't happen too often.

1978 LHD SAAB 96
1978 MGB Roadster
2008 LHD "Classic" Renault Twingo
1991 Nissan Figaro

Edited by - andydeans3 on 01 Nov 2021 05:45:06
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Derek
V4 Guru

United Kingdom
2050 Posts

Posted - 01 Nov 2021 :  13:21:11 Show Profile Reply with Quote
If the battery is flat isn't the solenoid then "Free"? That would mean the key should work normally. I think it should anyway as it is with cars with central locking that I know of. The remote solenoid locking is just a convenience
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