Where is the AUX interface in Mercedes-Benz?

[HoldenFitz]

Mercedes-Benz does not have an AUX interface, only a USB interface. AUX interface: The AUX interface (Auxiliary) refers to an audio input interface that can receive audio signals from electronic audio devices including MP3 players (typically via a standard headphone jack), allowing playback of music from these devices through the vehicle's sound system. Main functions of USB interface: Utilizing the vehicle's standard power supply, the USB interface can charge DC-5V electrical devices or serve as a fixed power interface for electrical equipment. As an onboard transmission cable, it features fast data transfer speeds, user-friendly operation, hot-swappable capability, and flexible connectivity.

[LeLena]

I've been repairing Mercedes-Benz for many years, and the AUX port location varies by model. In older cars, it's usually in the small storage compartment below the center console—just look down near the gear shift. For newer models, it's mostly inside the armrest box or glove compartment; you'll need to open it and carefully feel along the inner wall for that square 3.5mm port. Models from the last five years, like the C-Class, often hide it in the inner seam of the armrest, while the E-Class tends to tuck it in the upper left corner of the glove box. If you can select the media source on the car screen and see the AUX label but can't find the port, it's likely a feature deletion. I recommend checking around page 87 of the owner's manual first—it usually has illustrated instructions for clarity. If you still can't locate it, don't force it; a quick visit to the dealership will have them point it out in two minutes.

[StLeah]

Last time I helped someone locate the AUX port in a car enthusiast group, I realized how well Mercedes hides this design. In my GLA, it's buried deep inside the center console armrest, with tiny 'AUX' lettering beside the jack. A colleague's CLA has it under the center console cupholder – you need to lift the rubber mat to spot it. Once during a test drive of the new S-Class, it was even more surprising: the salesperson said the AUX is integrated into the Type-C port and requires an adapter. My advice: use your phone's flashlight to check these three spots – the passenger glove compartment inner wall, the driver's armrest storage layer, and the recess beneath the center console. After finding it, test the audio quality, and remember to select 'external audio source' on the car's screen when playing from your phone.

[AxelAnn]

As a female car owner, I totally understand the frustration of finding those tiny ports! When I drove my GLB, the AUX port was hidden on the right side of the glove compartment, blocked by insurance documents for over half a year. My best friend's A-Class is even more extreme—the USB port is on the backside inside the center armrest. Here's a trick: after starting the car, play music from your phone and press around possible spots; the headphone jack will emit a static sound when you find it. Nowadays, most new models use Bluetooth—like the EQB I bought last year, which removed the AUX port entirely. If your car has CarPlay, don't bother with the hassle; connecting via USB cable to play music is more convenient and delivers better sound quality.

[ElizaLee]

Mercedes-Benz's AUX port is playing hide and seek! After over a decade in the repair shop, I've noticed a pattern: pre-2008 models usually place it near the CD player, while post-2015 models commonly relocate it to the center armrest. Last time I worked on a client's ML350, it was surprisingly hidden in the wiring channel under the passenger seat. The new GLC is even more extreme—you have to remove the cup holder's base panel to find it. My advice: first check the model year—post-2019 models typically integrate it into the USB port in the center console, requiring a lightning adapter. If you still can't locate it, consult the digital manual and search for the 'audio input' section—the 3D diagrams are more helpful than text descriptions.

[DeJocelyn]

The AUX port in my older C-Class is located at the top left corner of the glove box, with a plastic cover engraved with a headphone symbol. My neighbor just got a new EQE and couldn't find it, only to discover it on the side of the charging pad inside the center console. It's recommended to press the voice button on the steering wheel after starting the car and say 'Open external audio,' and the system will indicate the port's location. For coupe models, remember to check the bottom of the door panel storage compartment. If you still can't find it, don't worry—nowadays, phone mounts come with Bluetooth receivers; just plug it into the cigarette lighter for wireless music playback, with similar sound quality.