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Thread: Battery low on 3.0 Tdi

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  1. Re: Battery low on 3.0 Tdi 
    #21
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    Quote Originally Posted by prophet View Post
    As many suggested on here, I took my car to my local trusted garage. They tested the S5 battery and said it was knackered. They also said it hadn’t been coded to the car. Don’t know if that has caused any of its issues. It has now been replaced with an Exide battery.

    Fingers crossed for you.

    One of these is just plain excellent, a quick glance tells you what is going on, I have one of these in all my cars.

    Plastic 12 24V Dual USB Output Cars Van Charger With Voltmeter Display | eBay
     
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  2. Re: Battery low on 3.0 Tdi 
    #22
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    Hi! I have also had some issues with low battery on my C6. Occassionaly the MMI shows 10% battery level, and all comfort functions are switched off. Changed to
    OEM Varta battery and coded it in, measured for all kind of power drains without finding anything. The local Audi dealer finally found the issue. Sometimes when you pull out the key
    from the ignition, the steering column doesnt register this, and keeps the CANBUS live wihtout going to sleep. The solution was to change out the entire steering column,
    and this was supposed to be a common issue.
    Guess what Audi quoted for the parts... yeah about 1900EUR only for the part... Well I found one second-hand for about 1/8 of the price. Hope that one doesnt have the similar issue
     
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  3. Re: Battery low on 3.0 Tdi 
    #23
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    Another update to my issue. I had the battery replaced in December and the car has been behaving fine. However I didnít use it last week so it sat on my drive for six days without being used.

    I came to use it today and the doors were already unlocked. Canít be 100% certain I had locked it, but donít normally forget. However the boot was still locked. I have it set so one press of the fob unlocks everything including the boot.

    I got in the car and there was absolutely nothing. Couldnít even get the key back out. I took a multimeter to the charge points under the bonnet and it read 2.82v!! I connected a battery charger but it wouldnít play ball as the battery was so low. In the end I jumped it from a jump pack, left engine running for half an hour, and then turned it off and plugged battery charger in. Charger seemed happy to charge it from then on.
     
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  4. Re: Battery low on 3.0 Tdi 
    #24
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    Does the fob have separate boot button?
    How many buttons are on the fob(2 or 3)?
     
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  5. Re: Battery low on 3.0 Tdi 
    #25
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    The fob does have three buttons, so a separate boot one. But I did set it up in the vehicle settings that the boot unlocked with the other doors, so only one press of the main unlock button.

    I have just remembered that the previous owner told me that the vehicle was fitted with a Trackstar Tracker (who are now called Teletrac Navman). I wonder if that could be draining the battery. They still had him listed as the owner because they called him last week to see if he had disconnected the battery. When he said he no longer owned the car, the closed the account and turned the sim off.
     
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  6. Re: Battery low on 3.0 Tdi 
    #26
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    Quote Originally Posted by prophet View Post
    The fob does have three buttons, so a separate boot one. But I did set it up in the vehicle settings that the boot unlocked with the other doors, so only one press of the main unlock button.

    I have just remembered that the previous owner told me that the vehicle was fitted with a Trackstar Tracker (who are now called Teletrac Navman). I wonder if that could be draining the battery. They still had him listed as the owner because they called him last week to see if he had disconnected the battery. When he said he no longer owned the car, the closed the account and turned the sim off.

    Neighbour had issues with a tracker draining the battery.
     
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  7. Re: Battery low on 3.0 Tdi 
    #27
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    Quote Originally Posted by lynalldiscovery View Post
    Neighbour had issues with a tracker draining the battery.
    Iíve taken it to my trusted garage for them to investigate. Wonder if Iíd have just been better off paying the tracking company £80 to come and remove it.
     
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