Question about 2003 Audi A4 Cabriolet

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My Audi 1999 A4 has a problem with centre locking, the remote control is not respond to the alarm system, so I cannot deactivate the lock and not allow me to open both Boot & driver door. Even turning the key to open the door manually, still not work out, all doors still lock up. Experts, please help me.

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The door locking system is malfunctioning and must be replaced . This is easy to test - just listen for the vacuum pump in the boot, now it should be constantly on instead of just when you command it to close. Definitely a job for the shop, a lot of trim parts will have to be dismantled to access and identify the cause of the failure and prevent that from happening again.

Posted on Aug 06, 2010

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Posted on Jan 02, 2017

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My Audi a4 r req ,problem with key fob,will not operate central locking,it activate the alarm ok.can you advise


unlock car with key/hold over(windows will go down.wait 30secs.then lock car with key/hold over (windows will go up/sunroof will close)wait 30 secs then press/hold for 30 secs the unlock button on the remote,you have just reset the system.

Nov 23, 2010 | 1999 Audi A4

1 Answer

I have just charged the battery on my 1996 r reg audi a4 now central locking has disabled as has alarm system! any ideas


unlock the car with the key/hold over for 30 secs.
lock the car with the key/hold over 30 secs.
then press/hold down unlock button on remote.
you have just reset your alarm/central locking system
change remote batteries every 2 years...... both remotes....

May 08, 2010 | 1997 Audi A4

1 Answer

Audi a4 central locking will operate on its own whilst driving. if you lock it using the fob the alarm goes off after about 5 mins.


alarm sensors work really hard on a car and does bottom out over time. it sounds to me that a faulty sensor is messing around with the security system. I know of people that bypass this by installing a new aftermarket system which is more advanced and uses the door mechanisms and transponder key. good luck

May 08, 2010 | 1999 Audi A4

1 Answer

Audi 96 a4 open and closes on it own


do you use keys or remote to lock it ??
do this anyway.. lock car with key and hold key over for 30secs.the windows may go down, then release and wait 30 secs ,then lock car with remote holding button down for 30 secs,this resets the central locking./alarm system.also check battery is fully charged as this will have an effect on all the above

Mar 07, 2010 | 1998 Audi A4

1 Answer

I replaced battery in my audi 80 2.0 tdi but have lost the remote and alarm wont stop going off .


Depress lock or unlock button. Manually lock and unlock driver's door within 30 seconds. System should now lock or unlock vehicle. If not, carry out programming procedure.
Programming
When
Key added or replaced. System malfunction: Alarm LED in rear fog lamp switch illuminates for 30 seconds when vehicle is locked.
How
NOTE: A maximum of 4 keys can be programmed (one at a time).
As memory positions of existing keys are unlikely to be known: Obtain and reprogram all keys.
NOTE: Existing key memory positions will be overwritten.
Switch ignition ON. Use key not fitted with remote control. Manually lock vehicle using key. Using first key, press unlock button once (programs memory position 1). Alarm horn sounds once to indicate signal received. Wait 6 seconds. Press unlock button once to confirm programming. Vehicle unlocks. Programming mode deactivated. Switch ignition OFF. To program remaining keys into memory positions 2, 3 and 4. Carry out the complete procedure below for each key: Switch ignition ON. Use key not fitted with remote control. Manually lock vehicle using key. Press unlock button at 1 second intervals, as follows: Twice for memory position 2 (second key). Three times for memory position 3 (third key). Four times for memory position 4 (fourth key). Alarm horn sounds once every time unlock button is pressed, to indicate signal received. Wait 6 seconds. Press unlock button once to confirm programming. Vehicle unlocks. Programming mode deactivated. Switch ignition OFF.
NOTE: Ignition MUST be switched OFF between each key programming procedure

Jan 10, 2010 | 1992 Audi 80

1 Answer

1999 Audi A4 Locking system not working.


This normally indicates that one of the pressure hoses has either popped off, or has a leak..the hoses run from the vac pump to the doors, with several T connections in between..Start at the pump and trace from there..Check for popped hoses at the T connections, the pump, and at each door lock actuator (inside each door)..Listen for hissing sounds when the pump is running, this indicates a leak.

Aug 23, 2009 | 1999 Audi A4

1 Answer

1999 Audi A3 1.8T Electric Windows and Central Locking Won't work


will your passenger door open with the key and is it just one side that your windows are not working or both. if its just one side it might be your regulator motor in the door thats not working if its both it might be your central locking pump usually in the boot. however if both of them are working fine it could be that your key needs reprogrammed however i think the 1st 2 are more likely to be the problem.

Jun 24, 2009 | 2002 Audi A4

1 Answer

Alarm for audi A4


Try disarming the car from the trunk. Sounds like the door lock switch is not deactivating the alarm, which it should, with or without the remote.

Apr 24, 2009 | 2001 Audi A4

1 Answer

98 A4 quatro, broken keyless entree system


can you hear the pump trying to work?

Jul 30, 2008 | 1998 Audi A4

1 Answer

1999 Audi A4 Locking mechanism


It sounds like the vacuum pump has gone out. The locks are vacuum-pump operated, and they're known to eventually fail on these and VW cars. Check that out - in my 99, the unit is in the trunk, passenger side. You have to remove the storage well between the wheel arch and the taillight, and pull the carpeting back, and the unit is down there just a bit below floor level.

Jul 26, 2008 | 1999 Audi A4

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