2012 VW Jetta TDI battery won't hold charge and car only clicks and won't start

SOURCE: vw jetta tdi check engine light is on, and the car won't start ?

If the car turns over ok it is probably the EGR valve stuck... try moving it back a forth a couple times... i had the same problem...

SOURCE: vw jetta

I have had this same problem! They say that the battery is fine, but it wont start. Jettas are just pieces of ****. I am so sick of mine> I have the 01 vw jetta VR6. I am in a state of actually loathing it. All I did when this problem occurs is have my battery recharged by sears or something, and it worked after that for a couple of months.

SOURCE: 2003 VW Golf won't start - battery was charged

You need to charge your battery up more. Either get a battery charger or leave the jumper cables hooked up for a longer period of time.
Your battery was probably completely dead. You might even need a new battery...they really don't like to be completely drained.

SOURCE: Jetta won't start

Hello,

I had the same problem when i replaced my battery.
1: unplug the battery
2: put key in ignition and turn to Aux Mode (that is the last click befor you turn the car on) Not all the way as if your turning the car on! Do not remove key! leave it in the ignition.
3. Hook up the battery and it will reset the computer. (wait for a few seconds)
4. Turn car on!

SOURCE: clicking noise inside dash board 2003 vw jetta

the relay is going bad. its freezing up. this will sometimes happen when it gets stuck in the on position.