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Thread: Central locking issue

  1. #11
    #829 called 'Olive' David's Avatar
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    If needed: https://rimmerbros.com/Item--i-WQT100030
    ... or any scrapyard with a petrol R75 in it

    David
    Last edited by David; 21-10-2021 at 08:56 PM.

  2. #12
    Administrator Nich's Avatar
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    Quote Originally Posted by Biggs View Post
    I'll get it out and have a look, but yes the car is running, seems odd the bcu saying its tripped. Apart from that everything else on the bcu looks to be ok.
    The alarm light on the dash flashes slowly for around 10 seconds after locking indicating a mislock of some description.

    You really do need to get your questionnaire back to Tim to get full access to this site. A lot of the information you are looking for is already available to full members.

    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.


  3. #13
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    Quote Originally Posted by Nich View Post
    You really do need to get your questionnaire back to Tim to get full access to this site. A lot of the information you are looking for is already available to full members.

    Nich.
    Already done......sent back same day. Just waiting on Tim?

  4. #14
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    Quote Originally Posted by David View Post
    If needed: https://rimmerbros.com/Item--i-WQT100030
    ... or any scrapyard with a petrol R75 in it

    David
    Thanks David. I'll look into this tomorrow.

  5. #15
    Administrator Nich's Avatar
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    Welcome to full membership James.

    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.


  6. #16
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    Quote Originally Posted by Nich View Post
    Welcome to full membership James.

    Nich.
    Top man. Thanks ��

  7. #17
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    I'm looking at changing the bcu as it still showing the inertia switch as tripped and still not getting anywhere with the central locking issue either.

    Is it just a straight swap for 2nd hand unit of the same type? Or does it need programming?

  8. #18
    Registered User jeff turbo's Avatar
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    I had a problem once similar to yours, it opened but bleeped but wouldn't lock or via the key and the dash display said doors were open, I had to change the drivers door central locking mechanism as I traced it to that. After I replaced it, it worked perfectly and I didn't need to program anything, all Rover 75 and ZT mechanisms are the same from memory. I took the old one apart and found a small plastic lever had moved to where it shouldn't be so the lock wouldn't work properly. I put that part back, put it another car and it started working again. The bit I'm not getting is it works after disconnecting the battery until you start the car but you may want to try changing the drivers door central locking mechanism as that could be faulty as per mine, there are a couple on ebay at about £65 (as always the drivers door is more expensive) or if you have a breakers near you you may get it cheaper if you want to try that, to change the BCU you might need the car T'4ed and one that will talk to the innards of the car but sometimes a normal T4 doesn't work on 260s as I've been told a few times by those who have a T4 computer. There are also different BCUs depending on if yours is a facelift or not
    Last edited by jeff turbo; 25-10-2021 at 03:32 PM.
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  9. #19
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    Before I had the laptop plugged in I had the drivers lock completely out and inspected. I'm confident it's good. The new diagnostics software shows all doors are closed and door micro switches are working. I have had the inertia switch out today and that checks out ok. Whilst under there found the sunroof drains completely detached from the rubber outlet. Both sides aswell..... rears look OK but a loose fit in the rubbers. Repair kit on order......

  10. #20
    #829 called 'Olive' David's Avatar
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    Quote Originally Posted by jeff turbo View Post
    ... Rover 75 and ZT mechanisms are the same from memory ...
    Indeed Jeff. As you imply, each of the lock units is however unique to its position on the car, i.e. front-left, front-right, rear-left and rear-right. (Front locks only, will also differ between LHD/RHD cars). There are two version of rear locks however, with or without the child-lock built in.

    Here is the child-lock tab to identify the version:

    ChildLock1.jpg

    David
    Last edited by David; 25-10-2021 at 04:47 PM.

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