Fitment notes: AGM battery required for start-stop system; located under cargo floor in rear
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Every control module on the 2021-2026 Audi Q5 — 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.
📍 Inside transmission housing, integrated with mechatronic unit (DL382 7-speed DSG or 0BK 8-speed Tiptronic)
🔧 VAS 6154/6155 with ODIS
⚠️ Mechatronic replacement requires transmission removal. Adaptation includes clutch learning (DSG) or shift point adaptation (Tiptronic). SGW4 locked; AutoAuth may not support TCM programming.
Hybrid Control Module / Power Electronics (PHEV) (HCM)3.0 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Engine bay, near firewall or integrated with inverter (PHEV models only)
🔧 VAS 6154/6155 with ODIS (dealer-only)
⚠️ Q5 PHEV (55 TFSI e) only. Controls hybrid powertrain coordination, regenerative braking, and electric motor (134 hp). High-voltage safety certification required.
Electric Power Steering Control Module (EPS)2.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard center, behind MMI touchscreen (10.1" standard)
🔧 VAS 6154/6155 with ODIS
⚠️ MMI touch response with 10.1" display standard from 2021. MMI Navigation Plus optional. Coding required for feature activation and regional settings. Component protection may apply.
Central Gateway Control Module (CGW)1.8 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Dashboard, left side behind fuse panel (driver footwell area)
🔧 VAS 6154/6155 with ODIS (dealer-only)
⚠️ Security Gateway 4 master module. Replacement requires dealer-level security login and all connected modules may need re-coding. Controls diagnostic access to all other modules.
⚠️ Adaptive Cruise Control with Stop & Go standard on Premium Plus and Prestige. Radar calibration requires dealer tool and target setup. Pre-Sense integration.
📍 Under driver and front passenger seats (separate modules)
🔧 VCDS or Autel MaxiSys
⚠️ Power seats with memory standard on Premium Plus and Prestige. Heated/ventilated seat functions integrated. Calibration for seat position limits.
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 2026 Audi Q5 2.0L I4 TFSI 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.