My 2005 passat has issues starting in cold weather. Today it is -7. When this happened last year, I had to have it towed. I was told, sparkplugs, and other routine maintanance. I replaced the plugs, did the routine maintanance, and here I go again, not starting. I know it's cold out. The Toyota with 183000.0 miles on it starts no matter what the temp. Any suggestions? Does anyone know why the car won't start?