Electrical problem
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Thread: Electrical problem

  1. #1
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    Default Electrical problem

    Hi, my 260 has several electrical problems but they all came on at the same time.
    1: Driver information screen gives normal information, speed etc but no longer shows door open, bulb out information.
    2: all warning sounds have stopped, lights on, door open, the ticking noise when indicators are on
    3, no green arrows when indicators are on
    4, car unlocks via fob, but won't lock, same with key, will unlock all doors , but only lock drivers door
    5, stereo head unit, gps.. no longer has welcome screen, screen and radio do not work, but there is power to it as you can load and unload discs in the head unit.

    All these happened at once, taken it to an auto electrician today and he ain't got a clue, he's fixed all my other cars no problems


    I need some help here! Any ideas?

    There is no water in the boot, there in no water in the drains, sunroof doesn't leak etc
    Last edited by Scottie Tiger; 30-09-2021 at 02:15 PM.

  2. #2
    #829 called 'Olive' David's Avatar
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    Assume you have already tried, but disconnect the battery, ensure that is really FULLY charged, and reconnect after at least 30 mins. Effects a reset of lots of electronic thingies, and often works.

    I have also heard of corroded K bus connections under the seat carpet are the culprits of similar sounding woes.
    This description sounds EXACTLY like your problem, right down to which bits do and do not work.
    https://www.two-sixties.co.uk/mgoc26...he-wiring-loom .
    (You may not be able to see that if you are not a full member; sorry if so).

    A soaked BCU is also a possibility (water leaks from scuttle panel pins/clips or wiring grommets for example).

    David
    Last edited by David; 30-09-2021 at 02:51 PM.

  3. #3
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    Hi David, sorry can't view that.

    Yes I have tried the battery thing several times, with a few different batteries with no change at all.

    Would like to find someone that specialises in these matters as the car is basically un usable as it as can't lock the boot ( its a tourer) without disconnecting the battery

  4. #4
    #829 called 'Olive' David's Avatar
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    I will PM you in a few minutes, Scott, but you really should join as a full member for your own sake.

    David.

  5. #5
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    Cheers David , I will

  6. #6
    #829 called 'Olive' David's Avatar
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    Please let us know how you get on, Scott. Always valuable for other members who may find themselves with similar problems in the future.

    David

  7. #7
    Registered User Pete's Avatar
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    Where exactly is the leaking sunroof drain mentioned in the link located? Is this where the drainpipe attaches to the sunroof?

    Quote Originally Posted by David View Post
    Assume you have already tried, but disconnect the battery, ensure that is really FULLY charged, and reconnect after at least 30 mins. Effects a reset of lots of electronic thingies, and often works.

    I have also heard of corroded K bus connections under the seat carpet are the culprits of similar sounding woes.
    This description sounds EXACTLY like your problem, right down to which bits do and do not work.
    https://www.two-sixties.co.uk/mgoc26...he-wiring-loom .
    (You may not be able to see that if you are not a full member; sorry if so).

    A soaked BCU is also a possibility (water leaks from scuttle panel pins/clips or wiring grommets for example).

    David
    I used to be indecisive but now I'm not so sure.
    When you have eliminated the impossible, whatever remains, however improbable, must be the truth

    2004 MG ZT 260SE Pearl Black
    1960 MGA Roadster Flame Red

  8. #8
    Administrator Nich's Avatar
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    Quote Originally Posted by Pete View Post
    Where exactly is the leaking sunroof drain mentioned in the link located? Is this where the drainpipe attaches to the sunroof?

    I think it's the joint at the bottom of the 'A' pillar where it goes through the bulkhead. The joint separates and leaks water down to the footwell. Got that, been there, done that!



    Nich.
    Nicholas John Peter Tinker - # 484

    Manufactured on Tuesday 27th April 2004 @ 12.17.47.
    Commission Number: 24468.
    Brochure Model: M3 Tourer 4.6 V8 260PS.
    Specification Code: L01B.
    CICode: D1511.
    Trim Level: TL8.9 (M3).

    65th ZT-T 260SE to be made out of 115.
    11th ZT-T 260 SE in Pearl Black (PBT) out of 23 produced.

    Manufactured in the UK by MG Rover Group Ltd.


  9. #9
    #829 called 'Olive' David's Avatar
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    Quote Originally Posted by Nich View Post
    I think it's the joint at the bottom of the 'A' pillar where it goes through the bulkhead. The joint separates and leaks water down to the footwell. Got that, been there, done that!

    Nich.
    As Nich says, the leak tends to be at the lower end of the tubes, front or rear.
    There's a long "How to" thread with loads of photos, again from from Nick, X13#18, on how to fix them:
    https://www.two-sixties.co.uk/mgoc26...plete-Solution

    David
    Last edited by David; 01-10-2021 at 09:50 PM.

  10. #10
    Registered User Blue Flash's Avatar
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    Give Retro Sports Cars at Brighouse a bell, Chris the owner is an absolute master sparkie and mechanic has recently stripped the old loom out of my car and reffited a complete 260 main loom.... no problems and not a million miles from you......if he cannot rectify your issues no one can.
    Last edited by Blue Flash; 02-10-2021 at 08:57 AM.

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