Real-World Automotive Repair Case Studies

Learn from detailed diagnostics, repair procedures, parts used, and hard-won lessons from professional technicians.

Featured Case Studies

2018 BMW 540i – Intermittent No-Start

BMW 540i G302018ElectricalValvetronic

Vehicle would not crank after sitting overnight. Multiple low-voltage faults and valvetronic servo motor errors...

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2020 Ford F-150 – Harsh 2-3 Upshift

Ford F-1502020Transmission10R80

Harsh shift under moderate throttle. TSB 22-2219 led to solenoid strategy reflash and new molded leadframe...

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2022 Tesla Model 3 – Reduced Power Warning

Tesla Model 32022EV / HybridHigh Voltage

Limp mode with BMS_a066 alert. Isolation test revealed failed pyro-fuse in penthouse assembly...

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