Bosch DMW 40 L makes a clicking noise when it is on.

SOURCE: Squeaks from drum area during operation

We have a Bosch Nexxt dryer and it, too, squeaks during operation. We have not been able to find a permanent solution for this problem although we've had the repairman come out 3 times now. We have however found a temporary solution that lasts for about a week. We spray Static Guard (in an aerosol can) in the inside lining of the dryer... kind of in the lip of the front. (You shuld be able to feel it if you put your hand right inside the door.) We've just been spraying the static guard all the way around that area and the squeaking stops! Hope this works for y'all. May not be permanent but at least it stops the annoying sqeaking!

SOURCE: started making loud "clicking" noise

Blocked pump, open flap bottom right, drain off excess water manually and remove pump filter. Make sure you get right down and have a look in at the impellor and give it a turn to make sure its free to rotate. You'll probably find a coin, button etc that is catching the pump impellor. When you start a cycle the pump engages for a few seconds and then the w/m takes in water, so if something is stopping the impellor rotating the w/m will not start.
Best of luck

SOURCE: need bosch dishwasher manual

Try putting in your model number here to get access to documentation....

http://portal.bsh-partner.com/portal%28bD1lbiZjPTA2MA==%29/PORTALFRAME.HTM

SOURCE: Squealing noise

had same squealing problem.... had machine checked over. NOTHING WRONG.
Repair people ran it a few times with just water and no squealing at all. they also ran it with detergent capsule [Fairy] No squealing. Have got it back to monitor it. Used Fairy capsules for a few washes and no problems. As soon as I used the Waitrose Essential concentrated dishwasher liquid, the squeak was back with a vengeance.
The moral of my story is TRY NOT USING LIQUID DISHWASHER DETERGENT