Audi Key Not Working After Battery Change

If your key does not work after you change the car battery start the engine by pressing the start button with the keyfob.

Audi key not working after battery change. So i found a guy that does this for the dealerships in the area nd paid him 100 to do it. If you own the ross tech software and are comfortable completing the matching procedure go ahead and match your key fob to your immobilizer equipped audi on your own. If your battery is fine and you just purchased your key fob have your local audi dealer check to see if your key fob has been matched to your engine immobilizer. Simple instructions showing how to re program a vag key when fitting new battery to key codes can be lost.

Don t touch key fob circuit. Avoid touching the key fob circuit with your bare hands. If your car key remote works after replacing the battery then you re done. If the synchronization does not help check the battery of the remote control.

Switch the ignition off again. You ve fixed the problem and you can go back to using your key fob as normal. The battery voltage must be 3 0 v or higher. Remote key not working after battery change none of the methods to reprogram the keys worked for me.

If the remote battery voltage is below 3 0 v replace the battery and perform synchronization again.