E91 central locking issues

[grasshopper]

Hi All.

I have been researching this issue for a few days now and cant get to the bottom of the central locking issues my girlfriends car has.

Heres the issue.

Originally, the keyfob would not work at all.

I have rewired the module above the spoiler due to snapped wires, checked the module and all seems ok now.
All fuses associated with the central locking have been checked and are good (the two usual suspects have already been uprated to 20A).

Since the rewire:

The doors all lock from the keyfob.

When I unlock using the fob, the passenger front door unlocks but the other 3 doors do not, I can hear all actuators 'working', but they dont pop the knob up or unlock the doors.

When using the key in the drivers door, all 4 doors unlock properly.

I originally thought it must be that the 3 non working doors has actuator failures.

This didnt quite sit right with me that 3 actuators had failed.

Thinking about it last night, if the key operates all 4 doors correctly, this must mean that all actuators are good and strong enough to unlock the doors...

Does anyone have any ideas why the actuators work from the key and not from the remote?

I am a little reluctant to buy 3 x new actuators because they work from the key.

Any help is much appreciated (everyone likes to be a hero to their missus) :thumbsup

 

[billbt]

Hi All.

I have been researching this issue for a few days now and cant get to the bottom of the central locking issues my girlfriends car has.

Heres the issue.

Originally, the keyfob would not work at all.

I have rewired the module above the spoiler due to snapped wires, checked the module and all seems ok now.
All fuses associated with the central locking have been checked and are good (the two usual suspects have already been uprated to 20A).

Since the rewire:

The doors all lock from the keyfob.

When I unlock using the fob, the passenger front door unlocks but the other 3 doors do not, I can hear all actuators 'working', but they dont pop the knob up or unlock the doors.

When using the key in the drivers door, all 4 doors unlock properly.

I originally thought it must be that the 3 non working doors has actuator failures.

This didnt quite sit right with me that 3 actuators had failed.

Thinking about it last night, if the key operates all 4 doors correctly, this must mean that all actuators are good and strong enough to unlock the doors...

Does anyone have any ideas why the actuators work from the key and not from the remote?

I am a little reluctant to buy 3 x new actuators because they work from the key.

Any help is much appreciated (everyone likes to be a hero to their missus) :thumbsup

Thats the way they are supposed to work, press your key fob twice and the other 3 doors will unlock. Shoot, sorry just read the post again, only the passenger door unlocks! crossed wire somewhere?

 

[grasshopper]

Thanks for your reply.

Ive tried pressing the unlock button numerous times and the drivers door and both rear doors won't open.

I have just been informed by Mrs Grasshopper that it used to unlock all doors with one press.

The boot also unlocks and locks fine with the remote.....

I have disconnected the battery incase its a sequence problem but have only left it disconnected for 5 minutes or so. Should I disconnect it for 20-30 mins? Will this make any difference do you think..?

Thanks again

 

[billbt]

Thanks for your reply.

Ive tried pressing the unlock button numerous times and the drivers door and both rear doors won't open.

I have just been informed by Mrs Grasshopper that it used to unlock all doors with one press.

The boot also unlocks and locks fine with the remote.....

I have disconnected the battery incase its a sequence problem but have only left it disconnected for 5 minutes or so. Should I disconnect it for 20-30 mins? Will this make any difference do you think..?

Thanks again

Yip, 20-30 mins then re connect

 

[grasshopper]

Thanks.

Ill try that and get back to you...

 

[RonCT]

I'm having similar issues on my E85. Not sure if the known General Module issue that was present in the older models is applicable to E91.

 

[Jerry_112]

Hi All.

I have been researching this issue for a few days now and cant get to the bottom of the central locking issues my girlfriends car has.

Heres the issue.

Originally, the keyfob would not work at all.

I have rewired the module above the spoiler due to snapped wires, checked the module and all seems ok now.
All fuses associated with the central locking have been checked and are good (the two usual suspects have already been uprated to 20A).

Since the rewire:

The doors all lock from the keyfob.

When I unlock using the fob, the passenger front door unlocks but the other 3 doors do not, I can hear all actuators 'working', but they dont pop the knob up or unlock the doors.

When using the key in the drivers door, all 4 doors unlock properly.

I originally thought it must be that the 3 non working doors has actuator failures.

This didnt quite sit right with me that 3 actuators had failed.

Thinking about it last night, if the key operates all 4 doors correctly, this must mean that all actuators are good and strong enough to unlock the doors...

Does anyone have any ideas why the actuators work from the key and not from the remote?

I am a little reluctant to buy 3 x new actuators because they work from the key.

Any help is much appreciated (everyone likes to be a hero to their missus) :thumbsup

My central locking went a bit crazy and then stopped working entirely. I had to replace a blown fuse - they suggest replacing the 10A with a 20A fuse, resolved my issue as the actuators were drawing too much current.