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MK5 Golf GT TDi 2.0 - Battery problems (see inside for info)

Discussion in 'Motors' started by DJMK4, Nov 23, 2013.

  1. DJMK4

    Capodecina

    Joined: Dec 1, 2004

    Posts: 21,626

    Location: S.Wales, Cardiff

    Hi all,

    I know the cold weather is settling in, my car has all of a sudden is having issues if its left for more than 8 hours or more.

    I am having to bump every morning to it going, if you try and start it there is some charge there but that slowly fades, I have been fine when leaving work at night if I have been on lunch, but there was one instance where it didnt go on lunch, and when I left work that evening it wouldnt start.

    I know this is likely to be caused by an old battery and the colder weather, however there could also be drainage problems too.

    I took it to halfords as I was passing today and got them to do a free battery check on it, they attached the device to the battery, run the test, asked me to turn on my headlamps, then turn them off again, then he said that it looks like something is draining my battery.

    as far as I can tell there are no lights/or anything on when I lock the car - Could this still be a weak battery, or something else?

    Not sure where to go from here, to be perfectly honest I have never taken a car to be battery tested before, I have always found it was weak, and replaced, so not sure how accurate these tests are.

    Shall I just get a new battery, or get it investigated?
     
  2. Stormster

    Mobster

    Joined: Oct 18, 2002

    Posts: 4,592

    Location: Stoke-on-Trent

    Just get a new battery, job done :) How can some dude who gets paid min wage diagnose you have something draining your battery? Could he not be specific?

    He'd be in a better paid job if he knew what he was on about with motors...
     
  3. Stuff

    Wise Guy

    Joined: Sep 20, 2009

    Posts: 2,389

    Surely he had some sort of training from his employer if he was the one going out to the car to check the battery..? :confused: Pay doesn't seem relevant.
     
  4. DJMK4

    Capodecina

    Joined: Dec 1, 2004

    Posts: 21,626

    Location: S.Wales, Cardiff

    he couldnt be specific but thats what the readout on the handheld device "apparently" determined.

    Not sure how accurate or what these handheld testers are like, and what they can "tell"

    New battery then?
     
  5. TaKeN

    Capodecina

    Joined: Aug 18, 2005

    Posts: 12,873

    Location: Shropshire

    You need to find a garage who can perform a 'Parasitic draw test'

    It's either a something draining the car overnight, or a knackered battery.
     
  6. DJMK4

    Capodecina

    Joined: Dec 1, 2004

    Posts: 21,626

    Location: S.Wales, Cardiff

    I am starting to think it could have something to do with an alarm, I know my alarm doesnt work properly (audio wise), when I used to lock and let the alarm set, the door led used to blink, when I set it at the moment, it blinks, then stays on (static).

    Not sure of this has anything to do with but pretty much remember it blinking.

    Then again I could be completely wrong

    Sent a message to a guy I know who owns garage to see if I can get it checked
     
    Last edited: Nov 24, 2013
  7. Duke

    Man of Honour

    Joined: Jun 29, 2003

    Posts: 32,128

    How old is the battery? Should have a date stamped on it.
     
  8. DJMK4

    Capodecina

    Joined: Dec 1, 2004

    Posts: 21,626

    Location: S.Wales, Cardiff

    Not sure, will have a check tomorrow. I have had the car since Jan 2010 and I have had the same battery, so i would expect its a fair few years old.
     
  9. wildman_33

    Gangster

    Joined: Nov 19, 2011

    Posts: 334

    The alarm problem will be a faulty alarm siren, very common on the mk5 golf. Have you got the standard stereo in the car? If it is an aftermarket unit or even a, OEM unit form one of the later cars it will cause battery drain if your car is a pre 2007 car due to having the wrong CAN gateway.

    How old is you battery it might be worth changing it anyway if its quite old as cold starts in the morning will use the glow plugs which uses a fair bit of power from the battery.
     
  10. Duke

    Man of Honour

    Joined: Jun 29, 2003

    Posts: 32,128

    As above I'd probably change the battery first anyway with it being at least 4 years old.
     
  11. Matt82

    Capodecina

    Joined: Mar 13, 2004

    Posts: 16,517

    Battery problem coinciding with colder weather. Most likely cause is old dead battery
     
  12. ( |-| |2 ][ $

    Wise Guy

    Joined: Oct 18, 2002

    Posts: 1,717

    Location: Chesterfield

    I thought they didn't like being deep discharged?
    So it's past it's best now either way.

    I have a 2004 Leon and it's doing fine on the original battery, (fingers crossed)
     
  13. DJMK4

    Capodecina

    Joined: Dec 1, 2004

    Posts: 21,626

    Location: S.Wales, Cardiff

    Had it tested properly this morning, it charges ok, but as soon as the engine is switched off, you can see the charge dropping straight away.

    Going to order a new one today.
     


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