r53obd is a diagnostics and logging app built specifically for the first-generation MINI Cooper — R50, R52, and R53. These cars are too old for most modern diagnostic and coding apps, which start at the newer CAN-bus models. r53obd speaks their language.

Connect an OBDLink MX+ or compatible USB Cable and get:

FREE
• Live engine data — RPM, boost/MAP, coolant & intake temps, throttle, fuel trims, lambda, timing, knock, and more
• Read & clear fault codes — in plain English, with MINI-specific detail generic scanners miss
• Emissions readiness monitors and VIN
• CSV data logging — capture a drive or a full-throttle pull and export it
• Guided cooling-fan test — pinpoint the classic first-gen fan/relay failure
• Coding preview — scan your body modules and read their option coding (read-only) (OBD breakout or bridge required to reach all modules)
• Demo mode — explore the whole app with sample data, no adapter required

PRO (one-time unlock)
• Module coding — plain-English toggles for comfort & convenience options (lighting, locking, chimes, displays), with an automatic backup before every change (OBD breakout or bridge required to reach all modules)
• Active tests / actuator controls — relays, fuel pump, A/C clutch, cooling fan, injectors, and more
• Adaptation resets
• Advanced dashboards

Built for the enthusiasts and DIYers who want real numbers from the supercharged Cooper S and honest diagnostics across the whole first-gen range.

REQUIRES the OBDLink CX or OBDLink MX+ adapter (sold separately) and OBD breakout or bridge (also sold separately) or ISTA Compatible K/DCAN USB cable for live vehicle data. Inexpensive generic ELM327 clones are not supported for the MINI-specific data and cannot be utilized for vehicle coding. For lawful diagnostics and maintenance on a vehicle you own.

r53obd is a product of RABRH LLC. MINI and MINI Cooper are registered trademarks of BMW AG; r53obd and RABRH LLC are not affiliated with, endorsed by, or sponsored by BMW AG or MINI.