The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty.
You should access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you should access the ABS & ESP ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS & ESP ECU, and reset it.
SOURCE: My mercedes Benz cls 500
Mercedes uses a service schedule with the letters A-H to denote the relevent maintenance recommended.A is the basic oil service and H is the most inclusive.The intermediate letters correspond to proportional services.The service light should be reset at the completion of the service.This can be done via interface or using the controls and menus on the steering wheel.The specific format for resetting is different for different years and models.Alldata is fairly accurate for reset guidelines,but is not correct on some.Make sure to use synthetic oil in all newer MB,especially with extended oil change intervals.
SOURCE: hi i have 2003 Mercedes Benz S 500 i have
In your car Electronic Stability Program system included many different sensors (yaw-rate sensor, steering angel sensor, body acceleration sensor, some more) if ESP visit Workshop message appear on your instrument display It's very hard to say witch sensor could be the fault without right diagnose most common faults are either steering angel sensor or yaw-rate sensor might be some other sensors if you replace yaw-rate sensor it's need to be calibrate by diagnose computer, if replace steering angle sensor it's need to do right way otherwise when you tern steering wheel fully left or right it will brake at first time then you have to be replace another one so like to advise you to get right diagnose and repair buy Mercedes specialist if do some thing wrong it's be more cost to you if you get right place to do it only you have to pay once.
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