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Thread: Battery replacement

  1. #1
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    Battery replacement

    It looks like my car needs new battery.
    I went to local VW dealership and they want almost 300 quid for it.

    Checked Costco and they are selling Bosch S5A08 AGM batteries for 116.99 so I thought I would just buy it and swap during the weekend.

    However, a friend of mine told me that with newer VAG cars the battery shall be coded to an ECU?
    Phoned several installers (F1 Autocentre, Kwik Fit and Halfords autocentres) - some say that it shall be coded, some say that it shan't.
    The user manual for the car doesn't mention any coding, just states that I will see some disco on dashboard but the car shall be driven for several miles and it'll go back to normal.

    In short, I am at loss - shall I code the battery or not?

  2. #2
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    Is there anything other than a thick wire attached to battery negative?

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    I don't think so. But I was told that as my car got stop/start system, the car would need to know that the battery has been swapped.

  4. #4
    Administrator Keithuk's Avatar
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    Quote Originally Posted by TheRookie View Post
    But I was told that as my car got stop/start system, the car would need to know that the battery has been swapped.
    Don't you know if your Golf has stop/start?
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


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  6. #5
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    Just occured to me that I didn't specify the vehicle! D'uh!

    The engine is 2.0 TDI 140 Stop/Start
    2014 Golf Cabriolet 2.0 TDI-CR, DSG
    SEAT Altea

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    Not certain, but I think if it needed coding it would have a battery monitor module inline with the battery negative lead. If it doesn't have anything between the battery neg post and chassis (other than a thick wire), then I don't think there can be anything to code.
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  9. #7
    Administrator Crasher's Avatar
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    It needs to be an AGM battery like the Yuasa 9000, ask your local TPS as they stock Yuasa.
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  11. #8
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    Quote Originally Posted by Pete1 View Post
    Not certain, but I think if it needed coding it would have a battery monitor module inline with the battery negative lead. If it doesn't have anything between the battery neg post and chassis (other than a thick wire), then I don't think there can be anything to code.
    I'll check this weekend to see if there is any BCM attached.

    Quote Originally Posted by Crasher
    It needs to be an AGM battery like the Yuasa 9000, ask your local TPS as they stock Yuasa.
    Why specifically Yuasa? I've found Bosch, Exide and some other batteries that are AGM?
    2014 Golf Cabriolet 2.0 TDI-CR, DSG
    SEAT Altea

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