Black_logic

Hello yall you guys on here been helping me out for many years now I finally joined hahah I have a serious problem with my 2008 s550 I have no power to rear left side door I checked the fuses they are sending power but no power at the connection point to the door x35/3 where would be the other connection point be ? I would have to follow the wire cause there is millions of them I did change the door module thinking that was the problem still no power to the door can someone please help me : (

Jason B

Door module is likely bad.

Black_logic

thanks with your reply back Jason I just replaced the door module with a brand new one from the dealer and still no power the connection that connects to the door shows no 12 volt juice when I check the fuse for the rear door module there is power there hmmmmmmm

Jason B

You may need the start tool to re-code? Not sure...

Black_logic

Well I had it at my friends shop witch he has the Star and he can't read the door module to code it cause of no power there is a short some where but where do I look lol

Black_logic

I would hate to follow that wire there must me a connection point some where hmmmm

alx

if the door is used often your door harness got pinched right at the guide where it goes into the door or the body. the door pinch is more often than the body pinch.

if you remove the door insert and do some digging you can see where the harness enters the door. damage is usually visible. if the harness is pinched on the body side it will require some interior pieces removal to observe.

konigstiger

This may help: right instrument panel left rear module (n69/3) fuse 81 (x35/3 separation point) ground w19 left front seat cross member, right (n69/4) 82 (x35/4) ground w19 right front seat.

Black_logic

I must say that's why I use this site you guys are Mb master techs in your own way I'm very appreciated with all your info so I'm going to take out the front left seat and check I'll let yall know thank you

Black_logic

Thank you sooooooo much my online friend so saying I should take out the front seat and check under there right

konigstiger

If you checked harness as alx previously recommended, then yes you will need to check under front seat possibly accomplished by raising seat to its highest position before removing.

alx

Hm... is it ok if some are the old fashioned way?

Just asking

Black_logic

yuppers no problem!!! : )

Update!!!!....... I found the wire that was completely cut fix and s solder it back thanks to you guys and with your help I was able to save lots of money and works now perfectly so thank you guys for all your help have an amazing day y'all

Jason B

Great. How did it get cut again?

Black_logic

Hello Jay yea it was cut from inside the drivers B piller luckily I found it : ) would of cost me an arm and a leg if I took it to the dealer : )

Jason B

Awesome., Who cut it? or it cut by itself over time?