1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Battery charging voltage

stevebuba Mar 26, 2011

  1. stevebuba

    stevebuba New Member

    17
    0
    1
    Does anyone know what the above is for a 2 litre fsi?

    Thanks
     
  2. AudiLeon

    AudiLeon Well-Known Member VCDS Map User

    2,249
    192
    63
    Most cars are 14.6
     
  3. stevebuba

    stevebuba New Member

    17
    0
    1
    Mine is charging at 13.8 so could the alternator be faulty?
     
  4. Woorlord

    Woorlord shifting to Hyperspace... . VCDS Map User

    951
    17
    18
    According to Audi Workshop Manual Charging Voltage must not exceed 14.4V, and.....
    A battery terminal voltage of 12.5V is expected to be normal at no load. (i.e. measure with a voltmeter with the negative terminal cable disconnected.)
    A no-load voltage between 11.6V~12.2V would indicate a totally discharged battery.

    I checked my charging voltage and it is 14.2V. I would have thought a 13.8V charging voltage should be OK.
     
  5. scott b

    scott b Active Member VCDS Map User

    1,254
    3
    36
    13.8 - 14.4 is normal
     
  6. stevebuba

    stevebuba New Member

    17
    0
    1
    Yeah alternator seems to be ok, but battery is dead. Just replaced it with a new BOSCH not the easiest job in the world, trying to get to the 6mm allen bolt at the front of the battery is a real pain first you have to remove the rubber seal on the secondary firewall, then lift the clips on the foam cable thingy and then you can just about get a 1/4" drive allen socket on it, but if your short like me i had to kneel on the engine to reach!!!!
     

Share This Page