306 xsi won't start
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  1. #1
    Join Date
    Jan 2012

    Icon4 306 xsi won't start

    Hiya guys, new to this forum. I was wondering whether anyone could help me.

    Recently my 306xsi had a flat battery and the RAC installed a new battery. My wife believes the car was run (I was at work) but the next day the car won't start!

    You turn the keys in the ignition and all the lights on the dash light up but when you go to start it dies. You try this three times and the car won't light up or even lock. I have google everything and looked through manuals but nothing. Is there a code to be entered into the ECU?? To make things worse the remote key is stuffed because the previous owner got wet and shorted it.

    Can anyone help!!!


  2. #2
    1000+ Posts
    Join Date
    Dec 2005


    Sometimes a new battery isn't fully charged. Whether this was the case with your car is anybody's guess. I suggest another call to the RAC as there may be a problem with it. If they can start the car using jumper leads, then you no longer need to worry about the ECU problmes.

    Our 306s are earlier than yours so I can't help. We have had two different cars with non-starting problems, both at the local shopping centre, and relating to the starter motor, which I had to replace in each instance. The earlier symptoms were occasional failure of the starter to turn or catch, but it didn't take long for the starter to fail completely. One was ruined, the other was able to be rebuilt. 1.8 and 2 litre starters are different, but they are easy to fit, at least.
    1998 Peugeot 406 D8SV Manual
    1999 Peugeot 406 D8ST Auto
    2002 Peugeot 406 D9SV Manual
    1994 Peuegot 306 N3 Cabriolet Manual
    1994 Peugeot 306 XR N3 Hatch
    1995 Peugeot 505 GTI executive
    1976 Peugeot 504 Sedan - Now sold

    Over 60 Pugs in my time
    Gerry Mullock

  3. #3
    Member eatpeople04's Avatar
    Join Date
    Apr 2005
    Eltham, Victoria


    +1 for checking if battery is charged.

    Also (and disregard this if symptoms do not match yours) if the car will fire but not idle, you may need to reset the engine management ecu. There is a guide HERE.

    Now showing in:
    "Betty" 1997 Black 306 GTi6
    "Shaggy" 2001 Green Subaru Outback

    The Mrs. Has
    "Wags" 2006 Ash Grey 307 XSE Hdi Touring

    And for floating...
    "Korka" 1978 Red/Blue Ramsay Lynx with 327ci Chevy

    "Cliff the 505th" 1985 White 505 GTi
    "Clive the 505" 1983 Poo Gold? 505 STi RIP

  4. #4
    Fellow Frogger! Molerpa's Avatar
    Join Date
    Jul 2005
    South America, Argentina, That country that looks like hanging from the map... just about to fall...


    check if battery is charged and check the connections (terminals) the ones on the battery, and the others going to ground (body, and engine)

    Quote Originally Posted by luthier View Post
    It is simply impractical to expect a petrol motor to get through too much water. That's why God invented diesels.

  5. #5
    Fellow Frogger! gromzx's Avatar
    Join Date
    May 2011


    second checking the terminals.
    Remove, clean and refit.

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