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lauraschroeder6

Citan Bluetooth Connectivity Problem Solved

My 2014 Mercedes Citan diesel has a smartphone connectivity malfunction. The error memory has a code stored. Could a faulty ignition or drivetrain be the cause, or is it a pairing issue? The engine light is off, and the transmission is normal.

Summary of the thread

A 2014 Mercedes Citan experienced a smartphone connectivity malfunction, with an error code stored in the system. The problem was suspected to be related to either a faulty ignition, drivetrain, or a pairing issue. After clearing the pairing data and re-establishing the connection without success, it was suggested that the issue was likely within the Bluetooth module or its software. A visit to a Mercedes technician confirmed a Bluetooth module configuration issue due to incorrect pairing, which was resolved by resetting the pairing.

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4 comment(s)

michaelwalter53

Sounds like a nuisance. Is the error code available? Sometimes those codes point to the Bluetooth module or related software. Before suspecting engine, ignition, or transmission issues, clear the pairing data on both the phone and the Citan, then retry. Also, check for infotainment software revisions. It could be a compatibility issue.

lauraschroeder6 (community.author)

I've cleared the pairing data and re-established the connection without success. If the error code points to the Bluetooth module, could a deeper electrical issue affecting the drivetrain be responsible for the module's malfunction? I want to rule out all possibilities.

michaelwalter53

While a wider electrical issue is theoretically possible, it's less likely if the engine light isn't on and other systems are working. Given the symptoms, the most probable cause is a fault within the module or its software. If the error code confirms this, I'd suggest a workshop visit for diagnosis and potential module reprogramming or replacement.

lauraschroeder6 (community.author)

Following your advice, I visited a Mercedes technician. The error code confirmed a Bluetooth module configuration issue due to incorrect pairing. The pairing was reset, resolving the issue. The cost was 45€. Thank you for steering me clear of unnecessary engine and transmission investigations.

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MERCEDES

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CITAN