Fitment notes: AGM battery required; located in trunk; BMW recommends factory battery for proper vehicle electronics integration
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Every control module on the 2024-2026 BMW M550i — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
⚠️ Basic VIN coding; most aftermarket tools can perform
Park Distance Control (PDC)0.6 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Trunk, center rear panel
🔧 Autel MaxiSys or BMW ISTA
⚠️ Parking sensors; requires sensor calibration after replacement
Digital Display Key Module (DDK)security gateway +0.5 hr▸ programming details
📍 Integrated with CAS system
🔧 BMW ISTA + ICOM Next
⚠️ Display key fob with UWB; requires pairing with vehicle and CAS; no separate physical module
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2025 BMW M550i 4.4L Twin-Turbo V8 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.