Need help getting started with ECU tuning / EGR delete on BMW E91 320d N47
Hey guys,
I’m completely new to ECU tuning and trying to learn properly instead of just flashing random files.
My girlfriend has a 2012 BMW E91 320d (N47, 184hp) and I would like to learn how an EGR delete actually works on this platform. I’m not looking to become a “TikTok tuner” — I genuinely want to understand the process, tools, maps, checksums, logging etc.
Right now I know almost nothing besides basic concepts, so I’d really appreciate if you could point me in the right direction:
- Which tools/software should a beginner learn first?
- Is WinOLS worth learning immediately or should I start somewhere else?
- Best forums / YouTube channels / courses?
- Good way to practice safely?
- OBD vs Bench/Boot for EDC17?
- Any beginner mistakes I should avoid?
I already have a K+DCAN cable for BMW diagnostics/coding — is that enough to get started in any way, or do I need completely different hardware for ECU reading/writing?
I’m especially interested in understanding the ECU side technically, not just buying a ready-made file.
Any tips, guides, links or learning resources would help a lot. Thanks