
The original amplifier in the Mercedes-Benz E300 is located in the trunk. The amplifier, also known as the car power amplifier, is used to amplify the power of the car audio system, boosting weak electrical signals from the source to drive the speakers and produce sound. The new Mercedes-Benz E-Class is equipped with three types of engines: a 1.5-liter turbocharged engine, a low-power version of the 2.0-liter turbocharged engine, and a high-power version of the 2.0-liter turbocharged engine. The 1.5-liter turbocharged engine delivers 184 horsepower and a maximum torque of 280 Nm, with the maximum power output at 6,100 rpm. The low-power version of the 2.0-liter turbocharged engine produces 258 horsepower and a maximum torque of 370 Nm, with the maximum power output at 6,100 rpm. The high-power version of the 2.0-liter turbocharged engine generates 299 horsepower and a maximum torque of 400 Nm, with the maximum power output at 6,100 rpm.

When driving my Mercedes-Benz E300, I encountered an audio issue and found that the factory amplifier is usually located under the right-side trim panel in the trunk. I remember one time when the sound stopped working, so I opened the trunk and pried open the plastic panel on the right side—inside was a black square box, which was the amplifier. For older E300 models, it might be under the seat, but the trunk is more common. The amplifier is hidden, so when checking it yourself, pry gently to avoid scratching the interior. Common faults include loose wiring or moisture damage, leading to poor sound quality. During regular maintenance, check for any water leakage there. The Mercedes chassis has decent sealing, but it can degrade over time. In short, although it's a small component, it has a big impact. Before working on it, disconnect the battery to prevent short circuits.

Over the years of repairing cars, I've become very familiar with the amplifier location in the Mercedes-Benz E-Class. It's usually under the trunk floor or behind the rear seats. Specifically for the E300 you asked about, lift the trunk carpet and you'll find the amplifier module in the right corner. The space there is compact, designed to be shockproof and theft-proof, but the wiring connectors are prone to issues. Once, a customer complained about fluctuating audio volume, which turned out to be a loose amplifier plug. If you're handling it yourself, make sure to turn off the ignition switch and avoid working with live circuits. Mercedes wiring is delicate - tampering may blow fuses. When the amplifier fails, you'll get distorted sound or no audio at all. Regular dust removal can extend its lifespan, and avoid placing heavy items in the trunk that might press on it.

My Mercedes-Benz E300 is an older model, and I was also curious about where the amplifier is located. The manual says it's near the interior panel of the trunk, usually on the left or right edge. I opened the tailgate, removed the floor mat, and slowly pried open the plastic cover with a small pry bar, and there was the amplifier. It's not positioned too high, so you can reach it by bending over. This thing is sensitive to moisture, so you need to prevent rust if water gets into the car. When doing a simple check, don't yank the connectors forcefully. The E300's audio system relies on the amplifier, so locating it helps in troubleshooting sound issues, but professional work should still be left to the shop. The position is fixed, so it's not hard to find.


