I just got a papillon/chihuahua mix. He is 4 years old now. I found that a papillon usually lives around 13-15 or 16 years and chihuahuas can live up to 20 years old. Trying to find out what others might think or if you own a really old chihuahua or papillon or one thats mixed with these two breeds.
Judging from both of the breeds your dog is mixed with the dog will leave about 14 to 15 years. Small dogs and especially the breeds of dogs you dog is mixed with tend to live a long time, but it takes proper medical care and diet to make sure they live their maximum and at their happiest