ECU AND TCU FILE SERVICE
BMW 4 GC Stage 1 tuning files.
BMW 4 GC Stage 1 file support around MG1, MEVD17.2.9, and EDC17. Use this page when you already know what you need and want to order directly.
700,000+ file deliveries. 128 dealers. 22 years experience. WinOLS reseller.
What we deliver
- ECU tuning files prepared for real daily jobs
- TCU file support where gearbox coverage is available
- Stage, solution, and revision work handled with clear communication
- Direct WhatsApp and email order handling
Order directly by WhatsApp or email, with portal access available as well.
Stage 1 for BMW 4 GC
Engines
420i, 430i, and 430d
ECU families
MG1, MEVD17.2.9, and EDC17
Request overview
BMW 4 GC Stage 1 is the right page when you already know the exact job you want to order.
Typical context on this page includes 420i, 430i, and 430d and ECU families such as MG1, MEVD17.2.9, and EDC17. That helps you send a clearer request from the start.
Stage 1 before ordering
Coverage context
BMW 4 GC Stage 1 Demand is paired with 420i, 430i, and 430d and ecu families MG1, MEVD17.2.9, and EDC17.
The same requested solution can still need different handling depending on engine variant, ECU family, file history, and the final target.
What to send before file work starts
- BMW 4 GC with exact engine variant
- Stage 1 target and any related notes
- ECU or TCU family if already visible
- Whether the file is stock, modified, or returning for revision
Send your file
Orders are handled by WhatsApp and email. Send the file details and we will guide the next step.
We check file history, notes, and revision scope before delivery.
Available solutions
Use adjacent solution paths when you are still comparing the right direction for BMW 4 GC.