VW Passat 1.9 TDI 2003/2004 - Key fob not working - Kauser
Hi I have a VW Passat 1.9 TDI 2003/2004 model. My key fob is not working in the ignition...when I start the car it starts and immediately the engine cuts off and there's a key light flashing along with glow plug light....what could be wrong? Please help.
VW Passat 1.9 TDI 2003/2004 - Key fob not working - elekie&a/c doctor

Looks like you have an immobiliser problem.Is the key intact?have you recently dropped the key and lost the immobiliser chip located inside the fob?