We also have a Bosch dishwasher which is about 12 years old now. It has run flawless, cleans the largest of loads with ease, uses a small amount of water and is very quiet.
But..... A couple of months ago we started noticing goo build up at the seal of the door. I had a service tech come out and he said the pump was getting a build up and to try Tang to clean it out. I did this several times and it did help, but now the build up is coming back. Apparently we need a new pump to solve the problem or buy a new dishwasher. Not sure how much this is going to cost yet but will either get it fixed or buy another Bosch as we have really liked it until now.
I should also add that we are not big on washing our dishes before putting them in the dishwasher especially when having big get togethers so this machine in my mind has been amazing until now.
Greg