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  1. #1

    Join Date
    May 2013

    Lat/long sensor reflow?

    Hello all,

    Both my latitude & longitude acceleration sensors were faulty on the S3 so I replaced the lat sensor with a new one then before replacing the long sensor I noticed the german guide on how to reflow the solder yourself, I gave it a go on the old lateral sensor I now had spare but I balls it up, I tried to reflow the solder on everything I could see in there and think I overheated the chip It didn't seem to say on the guide which bits to reflow.

    I'm planning on having a go on the long sensor itself now (as it's reading 24+ so it's knackered anyway) Does anyone know which bits I should reflow, is it just the pins that poke out for the plug or is it the chip as well?

    If it's the chip as well is there anyway to keep it from getting fried?!

  2. # ADS
    Join Date
  3. #2
    A3 TQS

    Join Date
    Jul 2013
    It's the chip you need to redo, when I stripped mine and I pulled the board out it actually left the chip behind stuck in the goo in the casing, you need to desolder the 3 pins to the connector to be able to remove the board.

  4. #3

    Join Date
    May 2013
    Cheers rupe I'll give it another go then and hope it works this time. Its already knackered anyway so I can't make it worse

  5. #4
    chris99's Avatar
    s3 driver

    Join Date
    Dec 2010
    Usually the problem it's at the 8 pins of the chip/microcontroller that need to be resoldered.

    The soldering is very bad or the goo/silicone is coroding the soldering on the pcb, or both.. When sealing, better try to use oil sump silicone or use a little lubricant spray first to protect the pcb from the action of sanitary silicone and to be able to take it out again in case need redone
    Audi S3 8L
    OZ Superleggera | Bilstein B14 | BMC CDA | K04 | FMIC | SACHS Race Engineering | Brembo Sport GT | EBC Redstuff

    Live to drive, drive to live



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