Mercedes b class digitax mirror meter m1 . TIME working but not distance calculation .wire attached has alway be able to disconnect power to meter when squeezed . Now tar.extra.£p is reading 100-19

Have you check connection wireS, connector contact , finally the control switch ?
Using contact cleaner to clear dirt at connector, checking connector pins as we'll.
the wireS maybe broken ..

To check this remove the earth wire on the battery and connect an amp meter in the circuit. If the current draw is less than 1 amp ( even that will be excessive for instruments ) the battery should last 48 hours . I would be checking for a heavy current draw indicating a unit shorting out internally or a battery that has an internal short problem. Have a load test done on the battery to check this. Clocks and speedo and odometer always use power after being switched off as that is how they keep time and mileage recordings so the current draw is in milliamps. Even the ECM draws power when off as that is how it keeps the CPU program going and why sometimes the problems start when the battery is changed out or disconnected.

double check and make sure the connector is plugged into the power window and mirror switch in the door. check for dangling wires. If It is plugged in then you probably need and new window/mirror switch.

there is a short some where in that wireing to seat,,,use multimeter to find it

the wiring plug is their if you look for it ,slacken teh door panel a bit and pull the wires ,look on the new one for length of the wires to work out where the connection is ?

Mercedes Benz C-class 180C, the car stops engine each time I break, I have removed the switch connection to the air flow meter and this stops, what is the implication of removing the switch and driving car without an air flow meter?

You'll need a screw driver (philips is most common), a plastic prying lever, socket (should be 10mm, but can't remember)

If you're lucky, on the inside of the door, will be a triangular panel right behind the mirror that you can pop off. If you're not as lucky and it's one piece or the panel is blocked by the door panel, you'll need to remove the door panel to change it.

On the inside trim, you can remove screws (these screws may be covered by filler pieces or may be visible, or they may require you pry a plastic piece off that covers the screws) that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls. Then you can remove the bolts holding the mirror onto the door

Just double check that you havent blown a fuse/or fuses, it may be that simple!

i have same problem on 1997 s420, don't know why it is happening. but you can replace cigar lighter fuse then replace seat/mirrors/steering wheel fuse and all is well. thnx

On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls. Then you can access the bolts that secure the mirror onto the door