I understood everything with the music it was more fun to watch while learning.

I like your efforts .but try without music next time it kills the technicality on your video .also it takes alot now day's to deal with electrical problems ..good luck and good job

Good advice

Thanks for the video..

How many motors does the rear passenger door have with the window shade? because my windows work, But the shade doesn't go down, the window go up and down. How can I get the windows updated? Or where do I take it for that, any ideas on that?.

my sincere apologies, video is is where you share your knowledge , not with that loud music behind . with me having hearing impaired i was having tough time understanding you with that loud music . sorry

Where is the control unit located

The background music is too loud

how much does this cost and where r u located

Mine got issues with side mirrors

I have ,three windows not opening except drivers side

Hi Great video. I have same issue, the driver window only wouldn't go down, seems to be the door control module. My original unit number is A003 820 7926. I cannot buy exactly the same, can I buy any control unit for front driver side of mercedes w221 between 2005 - 2009 or do I need to find exactly the same number? On my launch diagnostic it shows window not normalized now. I hope to be able to reprogram the new one if it is different number would that be possible? Many thanks, amazing video!

Always with the stupid music! Good way to chase people away from your channel. Nice job!👍🏼

Where is the control unit located