The recommended tire pressure for a Mercedes-Benz C300 is 36 pounds per square inch (PSI) for both front and rear tires in vehicles with a single driver. In vehicles with a heavier load or extra passengers, the recommended tire pressure is 39 psi in the front tires and 46 psi in the rear tires.

The right tire pressure for a Mercedes-Benz C300 may vary depending on its model year and tire size.
You should find your recommended tire pressure in your owner’s manual or on a sticker on your driver’s side door jamb.
Typically, a Mercedes-Benz C300 needs a front tire pressure of 36-39 psi and a rear tire pressure of 36-46 psi, depending on the number of passengers.

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What is the right tire pressure for a Mercedes-Benz C300?

For a 2022 Mercedes-Benz C300, the recommended tire pressure is 36 psi for all four tires. But if you plan on carrying many passengers or heavy loads, you may want to consider upping your tire pressure slightly to 39 psi in the front tires and 46 psi in the rear tires.

Your recommended tire pressure can vary based on the model year and original equipment tire size of your vehicle. For example, in a 2021 Mercedes-Benz C300, the recommended tire pressure is 39 psi for the front tires and 45 psi for the rear tires in vehicles with a 19-inch XL OEM wheel size.

In most cases, the recommended tire pressure for a Mercedes-Benz C300 falls somewhere between 38 psi and 47 psi, with rear tires generally requiring slightly more pounds per inch of pressure than the front ones.

To confirm the recommended tire pressure in your vehicle, check your owner’s manual or take a look at the sticker attached to the driver’s side door jamb.

If you’ve equipped your Mercedes-Benz with high-performance tires or bigger wheels, you should check the tire pressure specifications for your new tires.

How to check Mercedes-Benz C300 tire pressure

You can check your Mercedes-Benz C300 tire pressure at any time using your vehicle’s instrument cluster:

Navigate to the “service” menu on your driver’s display using your steering wheel controls.

Scroll until you see the option for tire pressure, then press OK. Once you select it, a digital diagram of your vehicle will appear and the tire pressure levels will be shown beside each wheel.

If the pressure is low in one of your vehicle’s tires, your display will show you which tire lacks air.

You can also check the Mercedes-Benz C300 tire pressure manually using a tire pressure gauge.

To check the pressure in your tires, just remove the valve stem cap on the metal rim of each tire and push a tire pressure gauge onto the valve stem.

The tire pressure gauge will give you a reading, which you can use to either inflate or deflate your tire(s) as needed. You can always check your pressure at home, or at virtually any gas station with an air-filling station (which will usually have a tire pressure gauge for you to use).

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How often should you check tire pressure?

You should check your tire pressure once every month or two, before taking any long road trips, or any time you suspect your tires might not be at the right pressure level.

A tire pressure warning light isn’t the only way your vehicle might tell you that the tire pressure is low. Decreased performance and fuel efficiency, uneven rides, and even steering troubles can all indicate an issue with your car’s tire pressure.

How to tell if your Mercedes-Benz C300 needs new tires

In general, you should replace your Mercedes-Benz C300 tires about every three years. Depending on how frequently (or aggressively) you drive, you may find yourself needing new tires even sooner.

That’s why it’s a good idea to get in the habit of checking for signs of wear and tear whenever you check your tire pressure. If you notice low tread depth, odd cracks, or weird bulges in a tire, it’s time to replace it!

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How to reset the Mercedes-Benz C300 tire pressure monitoring system (TPMS) light

Let’s say you’ve confirmed the correct tire pressure for your C300, refilled the tires, and are ready to hit the road once more—but for some reason, the warning light on your dashboard is still shining on.

If you’ve refilled your tires but you’re still getting that dashboard warning, you may need to

reset your TPMS

entirely.

Before you attempt to recalibrate your TPMS system, try driving around for 10 or 20 minutes to see if the sensor resets automatically. It can take a few minutes for your TPMS to register the tire pressure after you’ve added or removed some air, so a little patience may save you the trouble of going through a manual reset!

Otherwise, you can reset the TPMS yourself in one of two ways:

With your key in the “on” position, hold down the TPMS reset button until the dashboard warning light blinks three times. After the blinks, release the button, start your car, and let it run for about 20 minutes or so. During this time, the sensor should automatically reset.

Navigate to the “tire pressure” menu using your steering wheel controls. Hold the down arrow on your steering controls to reboot the tire pressure monitoring system. Then press “OK” and the TPMS should automatically reset.

If all else fails, you can always bring your vehicle to a local Mercedes-Benz dealer to have the system recalibrated by a professional.

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