Fitment notes: 12V auxiliary battery; located in front trunk/frunk area; supports vehicle systems while high-voltage traction battery powers drivetrain
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Every control module on the 2025 Volkswagen ID.Buzz GTX — 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.
Battery Management System Control Module (BMS)8.0 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Integrated into high-voltage battery pack, underbody center
🔧 VAS 6154/ODIS
⚠️ Requires battery pack removal for access. Must perform cell balancing and capacity learning after replacement. HV-certified technician required.
Rear Motor Control Unit (MCU2)3.0 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Rear motor compartment, mounted on rear electric drive unit
🔧 VAS 6154/ODIS
⚠️ GTX-specific rear motor controller for AWD. Requires HV isolation and torque vectoring calibration.
⚠️ Controls power seat, heating/ventilation if equipped.
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 Volkswagen ID.Buzz GTX Dual Motor Electric and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.