Magicmotorsport has released v8.12.0.0 for Flex, making the latest-generation Bosch MDG1 control units on BMW and Mini vehicles programmable directly in Bench mode. The manufacturer presents this solution as a world first in its own announcement.
The real gain is this: the new protocol works via pinout. That means there is no need to switch to Boot Glitch mode and no need to open the unit in order to unlock it — the ECU stays closed. In Magicmotorsport's own words: "Keep it closed."
What does this update change in practice?
The MDG1 family has long been one of the most demanding groups in chip tuning. Previously these units required either opening the ECU and unlocking it via Boot Glitch, or sending it to the RFT (Ready For Tuning) service. Both routes meant extra time, extra risk and, in most cases, extra cost.
With the new protocol, the job is completed on an unopened unit through a pinout connection. As Magicmotorsport summarises this update: fewer steps, fewer risks, shorter working time.
| Method | Opening the unit | Note |
|---|---|---|
| Boot Glitch | Required | Case opening plus soldering/contact risk, variable glitch time |
| RFT service | — | The unit must be shipped; shipping and waiting time apply |
| Bench (v8.12.0.0) | Not required | Direct connection via pinout, connects in ~10 seconds |
If you want to understand the fundamental difference between Bench and Boot modes, see our detailed article on the differences between Bench and Boot mode.
Supported Bosch MDG1 control units
- BMW Bosch MD1CP032 — TC299
- BMW Bosch MD1CS001 — TC298
- BMW Bosch MG1CS024 — TC299
- BMW Bosch MG1CS049 — TC298
- BMW Bosch MG1CS201 — TC298
The list covers both diesel (MD1) and petrol (MG1) platforms, targeting variants with Aurix TC298/TC299 microcontrollers.
Technical summary
| Working mode | Bench (unit closed, pinout connection) |
| Memory operations | Internal Flash read / write / checksum, internal EEPROM read / write, Full Backup |
| License | FLS0.1M/S – FLS0.10M/S – FLS0.5M/S |
| Connection time | ~10 seconds |
| Reading time | ~2 minutes 30 seconds |
| Writing time | ~2 minutes |
These are the typical figures given by the manufacturer; they may vary depending on the unit, cable condition and supply quality.
Examples of supported vehicles
- BMW 4 Series Gran Coupé (G26) — 2.0L 420d MHEV, 187 HP (2021MY)
- BMW M2 (G87) — 3.0L Twin-Turbo 24v, 453 HP (2023MY)
- BMW M4 (G82) — 3.0L Twin-Turbo 24v, 542 HP (2021MY)
- BMW X2 (U10) — 2.0L 20d sDrive/xDrive MHEV, 161 HP (2023MY)
- Mini Cooper (F57) — 1.5L, 139 HP (2020MY)
This list is indicative. Exact compatibility for your vehicle is determined by the unit's hardware number and software version; the ECU label must be verified before starting work.
Required hardware and license
The job requires a Magicmotorsport Flex device, a suitable license package and a cable matching the MDG1 bench connection. Related products available from Nitro Bilişim:
- FLX2.16 Connection Cable — FlexBox to BMW MDG1
- FlexBox BMW MDG1 Connection Cable
- Flex Full SW Package — MASTER (FLS0.5M)
- Magicmotorsport FLK35 Universal Bench Cable Set
If you are not sure which license suits your business model (Master or Slave), feel free to consult us before purchasing.
v8.12.0.0 release notes
- Fixed the OBDFull connection problem seen on some DQ500 hardware.
- Implemented CRC for newer MDG1 units.
Frequently Asked Questions
Do I need to open the ECU for this protocol?
No. The new Bench protocol works via pinout; there is no need to switch to Boot Glitch mode or open the unit to unlock it. That is precisely the headline of this update.
Will I still need the RFT service?
For the five MDG1 units listed above, it is not needed within the scope of this protocol. For units not on the list or with a different hardware number, RFT may still be a valid route.
Which license is required?
One of FLS0.1M/S, FLS0.10M/S or FLS0.5M/S. We can check together whether your current license covers this protocol.
Does it work on every BMW and Mini model?
No. Coverage is limited to the listed MDG1 control units and the models that use them. The same model may carry a different unit depending on model year or equipment level, so verification via the ECU label is essential.
How do I update my Flex license?
Nitro Bilişim supports update and license renewal procedures. Simply contact us with your device serial number.
Assessment
The MDG1 family is one of the most widespread BMW engine control unit platforms of recent years. Being able to read and write these units on your own bench — without opening the case and without waiting for shipping — translates into a concrete gain in time and reduced risk for the workshop. For service centres with high daily throughput in particular, this update noticeably shortens the cycle time of MDG1 jobs.
If you follow Magicmotorsport's earlier steps on the MDG1 side, you can also review v8.2.0.0 released for Porsche Bosch MDG1 and v8.3.0.0 for BMW and Isuzu Bosch units. For the general framework of ECU programming on BMW, our BMW ECU programming guide is a good starting point.
Contact our technical team for the Flex device, license renewal, MDG1 bench cables and update support. Turkish supply and after-sales support for Magicmotorsport products is backed by Nitro Bilişim.
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