I have an Audi A6 2010 avant.
I have always had problems with this. Recently water in boot plus making rear tailgate lid open light come on + setting alarm due to corroding terminals from water dripping from rear washer inside tailgate lid..
I took off the avant rear lid plastic (which is not easy see YouTube for some help) found the pipe and motor flanges were leaking. I replaced, the motor the water jets and reassembled. It continued to do the same thing!! I removed the plastic connector from pipe to motor and attached direct firmly. That stopped that leak but then leaked through motor flange. Drip drip speed. New washer motor from eBay did same thing!
I then took the old motor apart and witnessed same images as above!! What chronic poor design!! After years of making these cars you would think Audi would fix this design flaw! I have had rear washer problems from new with this car for 10 years.
so I am now going to try to fix by putting PTFE tape around the small end shaft as well as grease it well
who said German cars are engineered so well? This is clearly a water tailgate scandal !! Why they could not have washer water come from above on tailgate and not through the motor as in V W golf and range rovers. They do not block that way either. That would have made the A6 the perfect car as it’s the only problem I have had with it.
