The basic steps for pairing your phone

To connect Bluetooth to a Mercedes-Benz, you start the pairing process on your phone first, then complete it on the car's infotainment system. The car will appear in your phone's list of available devices, and you select it. Then the car asks you to confirm the pairing, and you're done — your phone stays connected to that car from then on, unless you unpair it or connect to a different vehicle.

The exact menu names differ slightly between model years and whether your Mercedes has the older COMAND system or the newer MBUX (Mercedes-Benz User Experience) interface. But the sequence is always the same: phone first, car second, confirm on the car.

Most people get stuck because they look for Bluetooth settings in the wrong place on the car, or they don't realize the phone needs to be in pairing mode before the car can find it. This guide walks you through both the phone side and the car side so you know what to expect at each step.

Key Takeaways

  • Start pairing on your phone by going to Settings, then Bluetooth, and turning Bluetooth on so your phone broadcasts that it's looking for a device.
  • On the Mercedes, navigate to the Bluetooth or Phone menu in the infotainment system — the exact path depends on whether you have COMAND or MBUX, but both are in the main settings area.
  • Your phone's name will appear in the car's list of available devices within 10 to 30 seconds; select it from the car's screen.
  • The car will display a pairing code on the screen; confirm it matches what your phone shows, then tap Confirm on both devices to complete the connection.
  • Once paired, your phone connects automatically to the car whenever you get in and the car's Bluetooth is on, without needing to repeat these steps.

Pairing on your iPhone or Android phone

On an iPhone, open Settings, tap Bluetooth, and make sure the toggle is turned on (it will be blue). Your phone will start searching for nearby Bluetooth devices. On an Android phone, go to Settings, search for "Bluetooth" in the search bar, tap Bluetooth, and turn it on. Both phones will now broadcast their name and wait for a device to find them.

Leave your phone's Bluetooth settings open on this screen. You don't need to do anything else on the phone right now — just let it sit here while you move to the car's system. The phone will detect your Mercedes when you start the pairing process on the car's side.

Finding Bluetooth settings in your Mercedes infotainment system

If your Mercedes has the older COMAND system (common in 2009–2014 models), press the Phone button on the steering wheel or dashboard, then navigate to Settings or Phone Setup. Look for an option called "Connect Device," "Add Device," or "Pairing." Select it, and the car will begin searching for phones in pairing mode.

If your Mercedes has MBUX (2015 and newer), press the Mercedes logo button on the steering wheel or tap the home icon on the center screen. Go to Settings, then Connections or Phone, and look for "Add Device" or "Pair New Device." The car will start searching when ready.

On both systems, the car's screen will show a message like "Searching for devices" or "Ready to pair." This is the moment when your phone (still sitting in its Bluetooth settings screen) becomes visible to the car. The car will find your phone within 10 to 30 seconds.

Selecting your phone from the car's device list

Your phone's name will appear on the Mercedes screen as an available device. The name is whatever you've set it to in your phone's Bluetooth settings — often something like "John's iPhone" or "Samsung Galaxy S23." Tap that name on the car's touchscreen or use the steering wheel controls to highlight it and press Select.

Once you select your phone, the car will display a six-digit pairing code on the screen. At the same time, your phone will show a notification asking you to confirm the pairing and may also display the same code. This code is a security check — it confirms that you're pairing your specific phone to your specific car, not accidentally connecting to someone else's device nearby.

Confirming the pairing code on both devices

Look at the code on your car's screen and compare it to the code on your phone. They should match exactly. If they don't, something went wrong — disconnect and start over. If they do match, tap Confirm or Pair on your phone first, then tap Confirm on the car's screen.

The connection will take a few seconds to establish. You'll see a message on the car's screen like "Connected" or "Pairing successful," and your phone's Bluetooth settings will show the car's name with "Connected" underneath it. At this point, your phone is paired to the Mercedes.

What happens after pairing is complete

Once pairing is done, your phone will connect to the car automatically every time you get in, as long as Bluetooth is turned on in both places. You won't see the pairing code again or have to confirm anything — the connection just happens in the background. Phone calls will route through the car's speakers, and if your Mercedes supports it, you can also stream music or use voice commands through the car's system.

If you want to disconnect your phone from the car later, you can turn off Bluetooth on either device, or you can unpair them completely by going back to the Bluetooth settings on the car and selecting "Remove Device" or "Forget Device" next to your phone's name. After that, you'd have to pair them again from scratch.

Troubleshooting when pairing doesn't work

If your phone doesn't appear in the car's device list, make sure Bluetooth is actually turned on in your phone's settings — many people think they've turned it on but haven't. Also check that your phone is within about 30 feet of the car and that no other devices are actively pairing at the same time. If you're in a parking lot with other cars, move away from them slightly.

If the pairing code doesn't match between your phone and car, disconnect when ready and start over. A mismatched code means the car is trying to pair with a different device, which can happen if someone else's phone is also in pairing mode nearby. If the car keeps searching but never finds your phone, restart Bluetooth on your phone by turning it off and back on, then try the car's pairing process again.

If you've paired before but the car won't connect automatically now, check that Bluetooth is on in both places. If it still won't connect, go to the car's Bluetooth settings and remove your phone from the paired devices list, then pair it again from scratch. This usually takes less than two minutes and fixes most connection problems.

Frequently Asked Questions

Can I pair more than one phone to my Mercedes?

Yes. Most Mercedes models can store multiple phones in their Bluetooth memory. Pair the second phone the same way you paired the first — go to the car's pairing menu, search for devices, and select the new phone. The car will remember both phones and connect to whichever one is in range and has Bluetooth on.

Why does my phone keep disconnecting from the car?

The most common cause is that Bluetooth is turned off on your phone or in the car's settings. Check both places. If Bluetooth is on but the connection still drops, try removing the phone from the car's paired devices list and pairing it again. If disconnections keep happening after that, restart your phone and try again — a software glitch on the phone side is often the culprit.

Do I need to pair my phone every time I get in the car?

No. Once you've paired your phone to the Mercedes, it stays paired permanently unless you unpair it. The next time you get in the car with Bluetooth on, it will connect automatically without any action from you. You only pair once.

What if my Mercedes doesn't have a touchscreen?

Older Mercedes models use steering wheel buttons and a small display screen instead of a touchscreen. The pairing process is the same — use the steering wheel controls to navigate to Phone or Bluetooth settings, highlight your phone's name when it appears, and press the Select button. The pairing code will still show on the small display screen.

Can I pair my Mercedes to a smartwatch or tablet instead of a phone?

Most Mercedes Bluetooth systems are designed for phones and may not recognize smartwatches or tablets. Some newer MBUX systems support tablets for certain functions, but the primary pairing is always meant to be a smartphone. If you want to try pairing a different device, follow the same steps — put the device in pairing mode and search for it on the car — but the car may not support all features.