Rest the brake light on 2003 e 320 mercedes

You must look at all the brake pad thickness sensors to see which ones have been "tripped" and replace the ones that are. You must do this whenever the light comes on, there is no way to reset the light without replacing "tripped" sensors

nstructions

1. • 1 Sit in the driver side seat and ensure that all the vehicle doors are closed.
     
   • 2 Switch the ignition to the "On" position, but do not turn the vehicle on.
     
   • 3 Press the "0" button located on the left-hand side of your dashboard twice, within four seconds of switching the ignition to the "On" position.
     
   • 4 Turn the ignition to the "Off" position, press and hold the "0" button while turning the ignition back to the "On" position.
     
   • 5 Continue holding the "0" for 10 seconds, or until the dash display on your vehicle reads "Service In."
     
   • 6 Turn the ignition off and restart the vehicle to verify that the service interval message is cleared from the system.
     

Read more: How to Reset the Service Light on a Mercedes E500 ' eHow.com http://www.ehow.com/how_7426320_reset-service-light-mercedes-e500.html#ixzz2QosrxBFW

From FocusFanatics online - -

Resetting the oil life monitoring system
1. Turn the ignition key to the on position. Do not start the engine.
For vehicles with push-button start, press and hold the START/STOP
button for two seconds without pressing the brake pedal. Do not attempt
to start the engine.
2. Press both the accelerator and brake pedals at the same time.
3. Keep both pedals fully pressed.
4. After three seconds, the Service: Oil reset in prog. message will be
displayed.
5. After 25 seconds, the Service: Oil reset complete message will be
displayed.
6. Release both the accelerator and brake pedals.
7. The Service: Oil reset complete message will no longer be
displayed.
8. Rotate the key to the off position.
For vehicles with push-button start, press the START/STOP button to
turn the vehicle off completely.

The 2000 Mercedes models all utilize a Shift Interlock, which will only allow the vehicle to be shifted out of Park while the brake is applied. The way this works is that a lock pin holds the shift lever in the Park position until a solenoid is powered by the brake light circuit, pulling the lock pin away from the shift linkage. The wire to the solenoid may come loose, or the brake light switch may fail. If someone tried to remove the vehicle from Park without applying the brake, the end of the lock pin may have become jammed. Try two things: 1) Start the vehicle, put your foot on the brake, and attempt to move the shift lever from Park to Reverse. 2) If you cannot remove the vehicle from Park, are the brake lights coming on? If not, a) replace the 15A fuse for the brake light circuit, and b) try Step 1 again. 3) If you cannot remove the vehicle from Park and the brake lights are coming on normally, locate the interlock solenoid at the shift lever and make sure it is properly connected. When you put your foot on the brake, the solenoid should retract. If it does not, check for 12V at the solenoid when you put your foot on the brake. If you have voltage, replace the solenoid. If you do not have voltage, you have a broken wire between the brake light switch and the solenoid. If the solenoid retracts but you still cannot remove the vehicle from Park, your shift linkage may have become bent at the transmission linkage. Hope that's helpful! :)

I will need to know the year make and model of this car, as far as the brake light if the sensors are new then close all doors and trun the key on without starting the car and wait about 15 seconds and the brake pad warning light will go out, send me the info of the car and i will tell you how to reset the service light as the method changes for year to year and model to model and also depends on what type of cluster it has. good day.

I think you mean the service light that has come on on the Dash. This would be erased/turned off be a mechanic when he/she has serviced the brakes, and should be removed by a diagnostic/computer that plugs into the vehicle, normally under the steering column.

1) Turn key to position 2.
2) Press/release the R button to show the next service due light. Release button.
3) Turn key to Off.
4) Press and HOLD the same R button to view the service light, THEN, within 2 seconds, turn key to position 2.
5) Wait up to 10 second and the light will reset to show new service .

Let me know if this worked.

you cant reset anything on this vehicle ,last time i changed brakes on one of these the immobilisor cut in .so it was dealer job ,they read bar code on brake pad packet before the internet connected computer would release the immobilisor .Its all encrypted software via internet with factory and as its a merc it cost a fortune

this needs to be done by a mercedes dealership/garage

Take off the positive and negative battery wires and leave off for 15 minutes, that will reset the computer