Mercedes 2003 s350 w220 central locking pump doors hoses are

Question edited for clarity.
Question moved to model category.

Mercedes are the only manufacturer to have 8 or 10 fuse boxes :>D Don't forget the radio is also connected and monitored by the BCM.

Mercedes-Benz CL-Class & S-Class (C215, W220

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Mercedes-Benz E-Class (W211; 2003-2009) fuses ...

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Here you will find fuse box diagrams of Mercedes-Benz E200, E220, E230, E240, E270, E280, E300, E320, E350, E400, E420, E500, E550, E55, E63 2003, 2004, 2005, ...

Fuse box diagram Mercedes w220 and relay with ...

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In our article you will find a description of the fuses and relays Mercedes 220 with box diagrams, photo examples and their locations. We will note the ...

‎Engine compartment · ‎Box on the left side · ‎Box on the right side · ‎Additional box

The VIN info does no good at this site. I would call a MB dealer and ask the parts dept.

could have bad door lock

Nice to know that mercedes owners are as helpless as Ford owners. If you can drive a benz, then you can proof of ownership to a dealer and they will make you all the keys you want.

You sure its a S350? no such thing you mean S430?,S500? S55 or even a S600 ??

The locking system is controlled by vacuum . It is really hard to figure out because there are so many things that need to be checked. You can look for broken vacuum hose under the hood. Or under the dash. There are vacuum controls in the doors. Theres a vacuum canister in the trunk. Good luck This may help some. Leave comment.

Either one of the vacuum hoses has popped off or there is a leak in the system. The system uses a vacuum pump to push/pull air through hoses connected to actuators in each door..
Have someone activate the system while you listen in the trunk for the pump, find it and see if one of the hoses has fallen off there.

Hi, It is not a problem with the pump. Your door lock/latch assembly need to be replaced. Very common on these vehicles.

There is a central door locking pump under the back seat, the motor has gone in it, cheap way to repair is to strip it down and put a motor in it from a tyre compreser from argos for under £10 very easy to fit just two wires

you would have to take apart the door panel and check were the lock rod is their is a rubber copling which needs to be lubricated
with silicone grease,check the operation before you install door panel if is working ok,you dont have any other problem,but if it does'nt work you would need to replace complete latch.