your power seat control switch might encounter poor current contact due to oil/grease/dust at the forward and backward function. pull out the switch plastic covering and spray some wd40 on to it. It always works.

It needs a fuel level sensor. Call your local MB dealer, give them the VIN and ask if your vehicle has an open recall about the bad fuel level sensor.

your a/c vaccum diaphram/ vaccum unit that control your ourside air inlet flap which located at the inner-side of the dashboard is leaking.

your door lock vaccum pump located at the lugguage boot spare tyre compartment might not working dur to pump motor carbon bush worn out. please check by slightly knocking at the pump with a screw driver handle.

The motorized actuator on your driver side needs replacement. Replacing the whole module will do the fix conveniently.

Possibly a relay. Buy a repair manual (on CD) if you own this car.

Step 1: Pop the hood
Step 2: Remove the bulbs and the wires connected to the headlight
Step 3: Remove the screws that attaches the headlight to the body of the car
Step 4: Depending on the car sometimes you have to moe the bumper downwards to remove it
Step 5: Install new headlight and attach bulbs

The B10/6 Frt evaporator temp sensor is located ahead of the center console on the LH side of the HVAC case. It isn't far from the accel pedal. The rear B10/11 evaporator temp sensor is located on the LH side of the rear HVAC case under the center console.