Question about 2003 Audi A4 Cabriolet

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Immobliser just had new key reader fitted tomy audi a4 cabrolet .immobliser still kicking in whe try to start car . t start it i have totake battery lead off,

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Why tf would you have a key reader fitted?

Posted on Oct 04, 2008

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Hi, Have unplugged test equipment while engine was running and now will not start, battery has flattend so on charge overnight. Audi A4 Avant, do you think I have damaged the computer internally in the car...


disconnect the battery and leave overnight whilst its on charge then try it again tomorry ,did you just unplug a code reader if so then this shouldnt cause any problems

Aug 23, 2013 | Cars & Trucks

2 Answers

I can't jump start by Audi A4 after not having used for 2 months. Any suggestions?


Once the battery goes flat so the immobliser comes on.you need to reset the system as soon as you connect up the jump leads,then try and start it OR charge the battery up in the car (take off one of the leads before you do this)see my tips re alarm reset for VW as they are the same.

Feb 01, 2011 | Audi A4 Cars & Trucks

2 Answers

2003 Audi A4 Cabriolet alarm problem. The fobs (both) keep losing sync with the car. The fobs have new batteries. The hazard warning lamp switch on the dash is illuminated constantly, and I believe the...


unlock the car with the key and hold the key over for 30 secs,(the windows will go down) then lock the car/hold key over for 30 secs,(the windows will go up). wait 30 secs then press/hold down the unlock button on the key fob,this will resyncronise the alarm/key fobs.

Nov 23, 2010 | 2003 Audi A4 Cabriolet

1 Answer

My audi wont sart


try the simplest problem first spark plugs replace them and then the next thing would be check the ht leads actully check th ht leads are fitted correctly first

Aug 11, 2009 | 2004 Audi A4

1 Answer

Immobliser won't work


dealer only sorry

Aug 03, 2009 | 1996 Audi A4

1 Answer

AUDI A4 B7 MAIN STEREO PLUG


You may have the clock and radio power leads reversed. Clock needs to be on a line that is hot with key on or off...radio goes to a lead that is only hot with key on.Same goes for lead for power antenna...don't need power there unless car is on. Don't forget...I'm not there so I can only make an educated guess.
Good Luck

Jul 27, 2009 | 2005 Audi A4

1 Answer

Car only starts after several attempts with the ignition.


HI,IS THERE A ORANGE LIGHT FLASHING ON THE CLUSTER WITH A KEY IN IT,IF THERE IS THEN THE SIGNAL FROM YOUR KEY IS NOT GETTING TO THE IMMOBILIZER.THE FAULT WILL MOST LIKELY ATR THE PLUG ON THE READER COIL,IF THAT IS NOT THE CASE AND THE CARS ENGINE JUST AWINGS AND WILL NOT FIRE I SUGGEST YOU REPLACE THE MAIN RELAY NEXT TO THE ENGINE CONTROL UNIT PLEASE LET ME KNOW,ANDY

Mar 18, 2009 | 2002 Audi A4

1 Answer

W reg audi wont turn over after fitting new starter motor


IF YOUR ENGINE WON T TURN OVER AFTER YOU FITTED A NEW STARTER MOTOR..I WOULD START WITH THE BATTERY MYBE DEFECTIVE NOT HOLDING FULL CHARGE....THEN CHECK WIRING.....GET BACK TO ME IF YOU NEED MORE HELP !!

Mar 15, 2009 | 1998 Audi A4

1 Answer

Flashing orange light in dash of audi A4 2.6 petrol


Try disconnecting the both leads to the battery, wait 30 seconds and reconnect. Hope that helps.

Dec 02, 2008 | 1998 Audi A4

4 Answers

A4 Turns over, but won't start


hi. when u insert ur key and turn to on position with out it turning over check the light display and see if the light flashes with the car&key symbol if that is the case then it is a problem on the key and the imobiliser is not disabling properly have the batteries changed in the key or your key might need reprogramming.

Jul 02, 2008 | 1997 Audi A4

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