These instructions apply to the Mercedes C-Class Mk3 (W204) 2007-2014.
For other models, please choose your vehicle here.
Short answer: on the Mercedes C-Class W204 (2007–2014), first set all four tyres to the placard pressures, then with the ignition on scroll the instrument cluster to Tyre pressures and confirm the reset (or use Menu → Service/Maintenance → Tyre pressure). Drive a short distance for it to recalibrate.
Set the Correct Pressures First
The reset stores whatever pressures are in the tyres at that moment, so inflate all four (cold) to the values on the placard — in the driver’s door aperture or on the fuel-filler flap, with the correct figures for how the car is loaded — before you reset. Resetting on a soft tyre just teaches the system that soft is normal.
Reset From the Cluster Menu
- Inflate all four tyres to the placard pressures (cold).
- Switch the ignition on (engine off).
- Use the steering-wheel arrows to scroll to Tyre pressures, or open Menu → Service (Maintenance) → Tyre pressure.
- Select Restart / Reset and confirm with OK so it shows it is now monitoring the current pressures.
- Drive off — the system finishes calibrating over the first few minutes above about 20 mph (30 km/h).
If the Warning Won’t Clear
If the light stays on after you’ve set the pressures, reset and driven, a tyre may still be low, or there is a sensor/system fault (on cars with individual valve sensors). A steady warning normally means low pressure; a flashing warning means a system fault that needs diagnosis rather than another reset.
Frequently Asked Questions
How do I reset the tyre pressure light on a Mercedes W204?
Inflate all four tyres to the placard pressures, switch the ignition on, scroll to Tyre pressures (or Menu → Service → Tyre pressure), confirm the reset, then drive a short distance to recalibrate.
Where are the correct pressures listed?
On the placard in the driver’s door aperture or on the fuel-filler flap — it gives the cold pressures, usually with higher figures for a fully-laden car.
Why does the warning come back after resetting?
Either a tyre is genuinely low (reset only stores the current pressures, so inflate first) or a sensor is faulty. If the pressures are correct and it returns, have it checked.
Do I have to drive after resetting?
Yes — the system finishes calibrating on the move, so take a short drive after confirming the reset.
If a fault code was stored with the warning, look it up on our sister site autodtcs.com to see whether it’s a sensor fault or just low pressure.
Independent guide — not affiliated with Mercedes. Always follow your official service manual and safety precautions. Read our full disclaimer.