One ECU sits behind a surprising number of very expensive cars: the Bosch MG1CS221, BMW’s DME9 for the S68 4.4 twin turbo V8. It runs the new M5, the XM, the X5 M and X6 M Competition, the whole M60i mild hybrid range, and, because Land Rover buys the same engine, the Range Rover P530 and P615 SV and the Defender OCTA.
From 15 July it can be read and written on the bench after a mail-in unlock. Two and a half minutes to read, thirty seconds to write, checksums and backup handled by the tool.
Cars this opens up
- BMW M5 (G90, 2024 on), XM and XM Red Label, X5 M and X6 M Competition (2023 on)
- BMW M60i mild hybrid: 7 Series, X5 M60i, X6 M60i, X7 M60i, Alpina XB7 (2023 on)
- Range Rover L460 P530 and P615 SV, Range Rover Sport L461 P530 and P635 SV, Defender OCTA (2024 on)
What it means
The S68 leaves the factory conservatively mapped because it has to meet every market’s fuel. A Stage 1 on the 530 PS M60i and P530 cars is typically worth 80 to 100 PS and a similar amount of torque; the 727 PS M5 and the 625 PS XM Red Label respond in proportion. Every file we write is proven on our rolling road first, and the original is kept for a warranty visit or a sale.
Owners: put your registration into the tuning builder. Dealers: MG1CS221 reads go through the file service and the Autotuner is the tool that reads them; the one-off unlock is a mail-in, then the ECU is a bench job.
