central locking not working

[dazyp]

bought my ml 270 2 days ago and have found the central locking on the passenger front door is not working ?

the guy i bought it off said it works sometimes and then others it dont ?

any thing i can check ? all the other doors and the boot lock and unlock fine.

 

[Cosworth]

Maybe the solonoid in the door has gone faulty

 

[dazyp]

is that easy to get to ?

take off door card and pretty visible maybe ?

 

[television]

here are 2 links that may help

http://www.detali.ru/cat/oem_mb2.as...GM=716.644&CT=F&cat=04S&SID=72&SGR=015&SGN=01
http://www.detali.ru/cat/oem_mb2.as...GM=716.644&CT=F&cat=04S&SID=72&SGR=200&SGN=06

 

[dazyp]

had the battery disconnected while i tried to take the door card off because of the air bag , and no i need the code for the radio which is not in any of the paperwork i have or in the radio manual ?
it says its a mercedes audio 10 cd which i think is a alpine looking at other peoples pictures .
is there a easy way of getting this code ?
thanks

 

[Veridian]

Hi Dazyp, I bought my merc without the radio code, but took along my V5 (logbook) & ID to the stealership - to prove its my car - and they were able to provide the code from their systems - all for free

 

[television]

As Steve its no problem from the dealer

 

[dazyp]

back to the question about centra locking is the door panel difficult to remove ?

and what i am looking at checking once i get the panel off ?

power to solenoid , motor etc

 

[dazyp]

just got the door panel off and check voltage on the wiring not sure what i should be getting but here it is .
unplugged the 5 pin plug from the door locking system and cable colours in order are brown , blue , brown , white , green
when i lock the car i get 12v on the white and when i lock the car i get 12v on the green nothing on any of the browns or the blue ?
any one know if this is correct ?
and is the door locking solenoid fitted to the big door locking assembly ?
dont know what people done before central locking but its a pain leaning over to unlock the passenger door

 

[dazyp]

also noticed since putting the door panel back on the air bag light is on is this because I removed the wiring to remove the panel
Can this be reset manually or does it need to be done by a dealer

 

[dazyp]

does any one know how to remove the door locking assembley from the front passenger door ?
i have checked the wiring harness and it seems to have 12 v when you lock and unlock the car so i would assume there is something wront with the locking assembley ?
is the solenoid for the door located in the assembley ? i have tried to remove i get as far as unbolting it from the side and lowering the complete assembley to the bottom but can not get to twist it to remove through the gap out the door , it hits the support brase at the in the door and i can not turn it in any direction to remove it ?
does it need parts stripping off it to remove it in several parts.
and would buying a second hand locking assembley solve my problem.