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Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #707031
16/06/21 11:54 AM
16/06/21 11:54 AM
Joined: Mar 2021
Posts: 461
Oxted
PJC Offline OP
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PJC  Offline OP
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Joined: Mar 2021
Posts: 461
Oxted
Still no joy with the fuse issue and have also spoken to Brands Hatch Morgans about who have a local friendly auto-electrician so I'm going to arrange to let him have a look with the assistance off BMM to trace and replace the bit of wire that is shorting out. Fingers crossed!


Cheers, Paul
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #715716
27/08/21 10:11 AM
27/08/21 10:11 AM
Joined: Mar 2021
Posts: 461
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PJC Offline OP
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PJC  Offline OP
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Joined: Mar 2021
Posts: 461
Oxted
Still haven't got round to finding a dodgy wire but did decide to change the window switches themselves just in case it was broken switch, would have been a really quick and easy fix but alas not that lucky so definitely it's time to hunt down and find a broken bit of wire!


Cheers, Paul
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #731893
01/02/22 04:01 PM
01/02/22 04:01 PM
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Posts: 461
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PJC Offline OP
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PJC  Offline OP
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Oxted
Hi all, so I've completed a significant amount of additional testing and am beginning to wonder if one or other of the window motor control modules has a slightly temperamental electronic component within it. Does anyone happen to know what the part number would be for the drivers side BMW motor/module unit thingy?


Cheers, Paul
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #731901
01/02/22 05:11 PM
01/02/22 05:11 PM
Joined: Feb 2010
Posts: 1,337
SimonH Offline
Has a lot to Say!
SimonH  Offline
Has a lot to Say!

Joined: Feb 2010
Posts: 1,337
Originally Posted by PJC
Hi all, so I've completed a significant amount of additional testing and am beginning to wonder if one or other of the window motor control modules has a slightly temperamental electronic component within it. Does anyone happen to know what the part number would be for the drivers side BMW motor/module unit thingy?


They're not a BMW part


Simon @ Sifab.co.uk

Sifabtemporary@gmail.com
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #731925
01/02/22 07:41 PM
01/02/22 07:41 PM
Joined: Mar 2009
Posts: 9,421
Hampshire
Alistair Offline
Smile, it confuses them
Alistair  Offline
Smile, it confuses them
Needs to Get Out More!

Joined: Mar 2009
Posts: 9,421
Hampshire
Paul just a thought based on some work done on on my S2.

Where the bunch of cables go through the door (adjacent to the hinges) into the body behind the front wheel is often tight and this can cause the cables to be damaged. When the speaker cables were upgraded on the S2 they opened up the slots and put in fresh rubber protection around the edge of the hole. Some of the cable did show signs of wear so they wrapped and protected them with more tape.

It might be worth inspecting this for random shorts?


Just time to rent a thimble more petrol before dinner.
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #731966
02/02/22 10:37 AM
02/02/22 10:37 AM
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Posts: 461
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Hi Alistair, that was my immediate thought and I've looked very closely at this area on both doors and the plastic conduit between the door and car body on both side is in A1 conditions and I cannot see any evidence of any of the wires rubbing at the entry/exit points. I have also left the ignition on and moved/tugged the wiring on both doors as well as opened an closed the doors many times and nothing happens - the fuse remains fine then for no reason as at all the fuse just pops and sometimes the replacement fuse last weeks or months and other times a replacement fuse goes immediately I put the ignition on without even touching / moving anything at all.

This was why I thought it could be a faulty motor/module.

Simon - if the motor/modules are not BMW parts do you know who manufactures these so I can see if I can obtain a replacement?


Cheers, Paul
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #731985
02/02/22 12:08 PM
02/02/22 12:08 PM
Joined: Feb 2010
Posts: 1,337
SimonH Offline
Has a lot to Say!
SimonH  Offline
Has a lot to Say!

Joined: Feb 2010
Posts: 1,337
Originally Posted by PJC
Hi Alistair, that was my immediate thought and I've looked very closely at this area on both doors and the plastic conduit between the door and car body on both side is in A1 conditions and I cannot see any evidence of any of the wires rubbing at the entry/exit points. I have also left the ignition on and moved/tugged the wiring on both doors as well as opened an closed the doors many times and nothing happens - the fuse remains fine then for no reason as at all the fuse just pops and sometimes the replacement fuse last weeks or months and other times a replacement fuse goes immediately I put the ignition on without even touching / moving anything at all.

This was why I thought it could be a faulty motor/module.

Simon - if the motor/modules are not BMW parts do you know who manufactures these so I can see if I can obtain a replacement?


They're a modified OE part bespoke to Morgan that's NLA from the OE manufacturer
I'm trying to source parts- but all the aftermarket suppliers parts are all slightly different. I could make the aftermarket parts fit, but I need a car to prototype on- or a door at least


Simon @ Sifab.co.uk

Sifabtemporary@gmail.com
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #731995
02/02/22 02:37 PM
02/02/22 02:37 PM
Joined: Mar 2021
Posts: 461
Oxted
PJC Offline OP
Learner Plates Off!
PJC  Offline OP
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Joined: Mar 2021
Posts: 461
Oxted
So if I can't get a replacement motor/control unit I'm going to reface the 5A fuse with one of the re-settable blade circuit breakers instead so at least a press button each time they are playing up should do it.


Cheers, Paul
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #732019
02/02/22 06:21 PM
02/02/22 06:21 PM
Joined: Mar 2009
Posts: 9,421
Hampshire
Alistair Offline
Smile, it confuses them
Alistair  Offline
Smile, it confuses them
Needs to Get Out More!

Joined: Mar 2009
Posts: 9,421
Hampshire
Simon - in the past you mentioned that you have limited space. My Coupe still needs the front end sorting and if the door is the same I am happy to donate it for a bit if this helps you? Will need to organise to get it up to you if it is an option for you? This is S4+ based in case they are different ?


Just time to rent a thimble more petrol before dinner.
Re: Aero Window Switch Fuse Failure - Recurring [Re: PJC] #732020
02/02/22 06:42 PM
02/02/22 06:42 PM
Joined: Nov 2015
Posts: 4,896
Northern Capital of Cool
CooperMan Offline
Just barreling along
CooperMan  Offline
Just barreling along
Part of the Furniture

Joined: Nov 2015
Posts: 4,896
Northern Capital of Cool
Alistair, I assume it's a typo in your auto-signature doh


Jon M
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