How to Deactivate the Run-Flat Indicator on a Mercedes-Benz?

[VonKarter]

Press the OK button on the left side of the multifunction steering wheel, and the maintenance option will appear on the dashboard. Click the right button and press the OK button to restart. After pressing the OK button, you will be asked if the tire pressure is normal. Simply turn off the run-flat indicator prompt.

[AdelynDella]

After driving for so many years, if you encounter the 'Run Flat Indicator' warning on your Mercedes dashboard, don't panic. This usually means low tire pressure or a system false alarm. The most direct solution is to quickly find a place to inflate your tires to the standard pressure indicated on the door frame label. Then, navigate to the 'Vehicle Settings' in the central control menu, enter the 'Tire Pressure' option, and select to reset the Run Flat Indicator. From my experience, after inflating the tires, turn off the engine and wait a few minutes before resetting—the system will recognize it more accurately. If the warning light persists or appears intermittently, carefully check for slow leaks in the tires, and it's safer to get a professional tire pressure inspection at a service center.

[McAlina]

The run-flat tire indicator is on? I usually start by checking the actual pressure of all four tires. Use a reliable pressure gauge to measure each tire and inflate them according to the standard values posted on the B-pillar or inside the fuel filler cap. Then, locate the touchpad on the left side of the steering wheel, enter the control interface, select 'Vehicle' under the 'Maintenance' option, then click 'Tires', and choose 'Reset Run-Flat Indicator'. A small tip: after completing the reset operation with the engine running, drive for a few minutes (about 2-3 kilometers) to allow the system to relearn and confirm the tire pressure status. This usually turns off the indicator light. If the light remains on despite correct operation, it's highly likely that there's an issue with one of the tire sensor signals.

[VanMaddox]

The operation is actually quite simple: First, park the car in a safe place and turn off the engine. Ensure all tires are cold (driven less than 2 kilometers), measure the tire pressure accurately with a gauge, and inflate to the recommended Mercedes standard value. Turn the key to power on but do not start the engine. Use the control buttons on the left side of the steering wheel to find the 'Trip' option and press it. Then, use the right-hand touchpad's left and right buttons to switch to 'Tire Pressure Monitoring.' When you see 'Reset current tire pressure?' click 'Confirm.' This will clear the warning. Take a short drive to test; usually, the indicator light will turn off. If it remains on, there might be a slow leak from a puncture or an issue with the tire pressure sensor signal, requiring attention to the underlying problem.

[Fernando]

The low-pressure run-flat warning usually falls into two scenarios: actual insufficient tire pressure or a sporadic system error. When encountering this, my first step is to check for obvious punctures or damage. If found, of course, the tire needs patching or replacement. If there's no visible damage, uniformly inflate all four tires to the Mercedes manual's specified full-load cold tire pressure (typically 32-35 psi). The reset method varies by model and year—older versions use the dashboard menu, while newer models often utilize the left-hand touch control area on the steering wheel—select the vehicle icon, scroll to the 'Service' tab, and find the tire pressure option to reset. Remember, if the light doesn't turn off after driving for more than 5 minutes post-reset, promptly check the tire pressure sensor module or loose wiring connections. Occasionally, it might also be a false alarm caused by unbalanced wheel alignment.

[RubyLynn]

This is the run-flat tire warning strategy for Mercedes-Benz. The core step to eliminate the warning is calibration reset. First, find a gas station or use the onboard air pump to inflate the tires to the standard value. Pay special attention to the label values on the driver's side B-pillar or inside the fuel filler cap, as the front and rear tire pressures may differ. Then, operate through the dashboard or multimedia system: locate the yellow gear icon to enter settings, scroll to find the tire symbol menu with an exclamation mark, and select 'Reset RPA System'. I emphasize that the operation must be performed in a cold state (parked for more than 3 hours) to ensure accuracy. After successful reset, the system relearns the tire dimensions, and the warning light will turn off. If the warning repeatedly appears, check for leaks at the valve stem or visit a 4S store to update the control unit software version.