Android screen Bluetooth audio setup
This is a dual-Bluetooth audio setup: the Android screen sends audio to the original NTG system through Bluetooth. Turn on the Android screen's Bluetooth transmitter, find MB Bluetooth, then approve the same pairing code on both screens.
Factory settings → Function → Bluetooth transmitter switch → Reboot → Car Info → Media → Bluetooth audio → Options → Bluetooth audio devices → Connect via audio device
Before you start
Check the MCU version
Open Settings → System info. If the MCU version contains “MPb”, the Android screen uses Bluetooth for audio. This method applies to Mercedes NTG 5.0, 5.1, 5.2, 5.5 and 6.0 systems.
- Park the vehicle before using either screen.
- The factory settings password in this guide is
2018. - Pairing prompts time out quickly, so keep both screens ready.
Device names and pairing codes vary. QCOM-BTD-4119 and 338072 are examples from the screenshots, not fixed values.
Set up Bluetooth audio for the Android screen
Turn on the Bluetooth transmitter
Open Android factory settings and enter 2018. Go to Function, turn on Bluetooth transmitter switch, then reboot the screen.
Open the original Mercedes menu
From the Android home screen, tap Car Info.
Open Media
Select Media in the original NTG menu.
Select Bluetooth audio
Choose Bluetooth audio. “No device connected” is normal at this point.
Open Options
Select Options in the lower-left corner.
Choose the connection method
Open Bluetooth audio devices, then select Connect via audio device.
Open the device list
When the Android unit's Bluetooth name appears, tap the Bluetooth icon in the upper-right corner.
Search for devices
Select Search.
Select MB Bluetooth
Choose MB Bluetooth from the results. Do not select a nearby phone or another device.
Return to Android
When the notice appears, select Return to Android.
Accept the Android pairing request
When “Pair with MB Bluetooth?” appears, check the code and tap Pair right away.
Close the NTG search list
Go back to the original NTG screen and close the search list with the back arrow.
Confirm the passkey
If the code matches the one shown on Android, select Yes. If it does not match, cancel and pair again.
Play a test track
The NTG Bluetooth audio page should now show the Android device name. Return to Android, play music, and check the vehicle speakers.
Quick fixes
MB Bluetooth is missing
Make sure original-car Bluetooth is on, then search again. Remove old paired devices if the list is full.
Pairing timed out
Repeat steps 7–13 and answer both prompts sooner.
Connected but no sound
Keep NTG on Media → Bluetooth audio. Check Android media volume, car volume, and the Bluetooth transmitter switch.
The codes are different
Cancel on both screens and pair again. Never approve mismatched codes.
Common questions
Why does an MPb Android screen need MB Bluetooth for sound?
An MPb Android screen sends its audio to the original NTG system over Bluetooth. The original system then plays the Android audio through the car speakers.
Is QCOM-BTD-4119 the correct device for every screen?
No. It is only the name shown in this example. Your Android screen may use a different QCOM-BTD suffix or another name.
Is the factory settings password always 2018?
2018 is correct for the unit shown here. If it does not work, ask the seller or installer for the password used by your firmware.
Do I need to pair again after every restart?
Normally, no. Both systems should remember the connection. If pairing keeps disappearing, check the paired-device lists or ask the screen supplier about a firmware update.
Connection check
Setup is complete when NTG shows the Android device name and Android music plays through the vehicle speakers.