Bosch MD1 / MG1
Unlocking of a compatible, removed ECU. Shipping to and from Revtech is additional.
- For compatible Bosch MD1 and MG1 units
- Enables regular bench reading and writing
- Compatibility confirmed before shipment
Unlocking of a compatible, removed ECU. Shipping to and from Revtech is additional.
Add engine tuning while the ECU is already with us.
ECU unlock: SEK 2,500 incl. 25% VAT. Engine tuning: SEK 3,196 excl. VAT. Shipping is additional.
How it works
Send the registration number, ECU details and your tool. We confirm support before you ship anything.
After confirmation, you receive the delivery address and packing instructions for the removed control unit.
We perform the agreed unlock procedure and check the unit according to the confirmed setup.
After return, read and write the ECU on the bench with a compatible tool and protocol.

MD1/MG1 bench unlock
Newer Bosch MD1 and MG1 control units may use protection that restricts reading and writing with tuning tools. During an ECU unlock, we process the removed unit so that a compatible tool can subsequently work with it on the bench.
This mail-in service is intended for workshops and tuners stopped by a locked ECU. The exact method and support depend on ECU version, part number, vehicle and tool protocol. Every job therefore starts with a free compatibility check using the registration number and a clear photo of the ECU label.
Once complete, we return the control unit to you. Engine tuning can also be ordered in the same enquiry, allowing both the unlock and requested calibration to be handled while the ECU is with Revtech.
We verify the MD1/MG1 variant, part number and your tool before providing delivery instructions.
Ship the ECU removed and protected against moisture, impact and static electricity. Shipping is additional.
Use a compatible tool and protocol. We can help check support for FLEX, KESS3 or AutoTuner.
Frequently asked questions
The service covers compatible Bosch MD1 and MG1 control units. Support varies by ECU version, part number and vehicle, so we always check the label and vehicle information before shipment.
After a compatible unlock, the ECU can be read and written on the bench with a tool that supports that ECU and protocol. Tell us which tool you use and we will help verify the setup.
Start with a compatibility enquiry. Once confirmed, we send the address and instructions. The ECU must be removed, dry, securely packed and protected against impact and static electricity.
We confirm the handling time together with compatibility before shipment. Total turnaround also depends on shipping to and from Revtech.
Yes. Engine tuning can be added for SEK 3,995 including VAT and completed while the ECU is with us. We confirm the vehicle and requested setup before work begins.
Do not ship the ECU before confirmation. If the specified version is not supported, we will tell you during the enquiry before shipping or service costs arise.
Before you ship
Send a short enquiry first. Once compatibility is confirmed, you receive the address, packing advice and next steps.