Description
Mercedes-Benz mail-in ECU tuning
Remove your engine computer and send it to PCM Tuners. We read the original software, build the calibration for your vehicle and fuel, program the ECU, verify communication, and ship it back ready to reinstall.
What is included
- Stage 1 performance calibration for a mechanically healthy vehicle
- Calibration matched to the selected model, engine, fuel, and installed hardware
- Improved throttle response and optimized torque delivery
- Original ECU read preserved
- Required bench or boot programming work
- Tracked standard U.S. return shipping
How mail-order service works
- Place the order.
- Complete the service request form with your order number, VIN, year, model, engine, fuel, and vehicle modifications.
- Remove the engine computer. Send the bare module only; brackets, mounts, screws, gaskets, and accessories may not be returned.
- Pack the module securely in a sturdy box so it cannot move. Include your order number inside the box.
- Ship it with tracking to:
PCM Tuners
367 N Clarendon Ave, Unit 7
[YOUR ORDER NUMBER]
Scottdale, GA 30079 - We read, calibrate, program, power-cycle, and verify the ECU.
- We return the completed ECU with tracking. Typical shop turnaround is 1–3 business days after arrival.
Built for your Mercedes
This service is available for the Mercedes-Benz models and engines shown in the Shop by Vehicle catalog. Stage 1 is designed for a mechanically healthy vehicle using its stated fuel and emissions hardware.


