Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
ESP, function: Notes
ESP incorporates the functions of electronic brake force distribution, ABS, EDL and ASR. The individual elements of the system are as follows:
If required, the ASR and ESP control functions can be switched off and then on again by means of the ASR/ESP push-button switch in the center console. This switch is overridden when the driver presses the brake pedal: ESP will remain active at all times during braking. Both functions, ASR and ESP, will be reactivated automatically the next time the ignition is switched on.
The condition of the ASR/ESP switch can be verified using the function 08 "Read Measuring Value Block". See READ MEASURING VALUE BLOCK (FUNCTION 08) , Display Group 2.
When the system is deactivated, the ASR/ESP warning light comes on in the instrument cluster. The warning light flashes at rate of three times per second when the control function starts working.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.