I bought 2 wks ago 04 CTT with Enter & Drive option. Today after I got back from lunch I turn the engine off but I forgot to turn the key to the left for 2 sec. after I parked, and I locked the car... went to work and after 4 hrs I couldn't even open the car - the baterry was soo dead I had to get Road Assisstance to give me a boost. The lights were off the engine was off and I thought there was nothing that could have drained the battery so quickly.... any idea what is wrong with this system???

 

I had the same problem on my old CTT.....How many miles are on yours and what color is it....hope its not my old one!!!

 

It has 13,000 km (8,000 miles) and it is silver (Toronto based) - bought it from Porsche Dealer.
When you had this problem - did you figure out why it is happening???

 

Good.....Its not my old one......try changing the battery it helped when i did that on my 04CTT....also when the car is shut down use a voltage meter and check the current that the battery is supplying....your porsche dealer will know the correct number...if its above that they need to determine what is still drawing power when its not sopposed too

 

I dont think it has to do with the battery especially with 8000 miles on it. I would take it to the dealer to have it examined. It could be caused by many things and telling you whats exactly wrong with it is impossible.