🌍 International coverage, work in progress. This Russian-market vehicle is part of our hand-curated international catalog. We are filling in labor times, torque specs and fluids as fast as we can verify them, so some numbers may be missing or marked estimated for now. Do you work on these vehicles in the EU, Russia, or the JDM scene? Help us get it right: send real shop times or corrections to [email protected], or request the data you need and it joins the verification queue.
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2025 AUDI A4

2.0L I4 TFSI•AWD•AUTOMATIC•gas•turbo
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Every control module on the 2024-2026 Audi A4 — 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.
Transmission Control Module (TCM / Mechatronic)4.5 hr R&Rdealer / factory tool +1.2 hr▸ programming details
📍 Inside transmission oil pan (mechatronic unit) for S tronic/DSG
🔧 ODIS Service with online authentication
⚠️ Mechatronic replacement requires transmission fluid change, extensive adaptation, and clutch learning. SGW-locked.
Hybrid Battery Control Module (HV Battery Module)3.0 hr R&Rdealer / factory tool +1.5 hr▸ programming details
📍 Rear cargo area or under rear seat (PHEV models only)
🔧 ODIS Service with high-voltage certification
⚠️ High-voltage system. Requires certified technician. Component protection and extensive calibration. SGW-locked.
Electric Power Steering Control Module (EPS)2.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Steering column, integrated with steering rack
🔧 ODIS Service
⚠️ Steering angle sensor calibration required. SGW-locked.
Body Control Module / Onboard Power Supply Control Module (BCM / OBSM)1.8 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Dashboard left side, integrated with fuse box
🔧 ODIS Service
⚠️ Controls convenience functions, lighting, power distribution. Component protection active. SGW-locked.
MMI Touch Response Control Module (MMI)1.8 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Dashboard center stack
🔧 ODIS Service
⚠️ Component protection ties to VIN. Navigation/software updates require dealer account. SGW-locked.
ABS/ESC Hydraulic Control Unit (ABS/ESC)1.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Engine bay, driver side near brake master cylinder
🔧 ODIS Service
⚠️ Brake bleeding required. Component protection active. SGW-locked.
Central Gateway Control Module (Gateway / CGW)1.5 hr R&Rdealer / factory tool +2.0 hr▸ programming details
📍 Dashboard, left side behind fuse panel
🔧 ODIS Service with online authentication
⚠️ Master security module. Replacement requires VIN programming and all module re-adaptations. Critical SGW component.
Quattro Ultra Control Module (AWD / Quattro Module)1.5 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Rear differential area (Quattro models only)
🔧 ODIS Service
⚠️ Active AWD system requires calibration. SGW-locked.
Engine Control Module (ECM)1.2 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Engine bay, left side near firewall or integrated with hybrid system on PHEV models
🔧 ODIS Service with online authentication
⚠️ Enhanced component protection. Online dealer authentication mandatory. Immobilizer and gateway pairing required.
Climate Control Module / 4-Zone Climatronic (CCM / Climatronic)1.2 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard center, behind HVAC control panel
🔧 ODIS Service
⚠️ Enhanced climate functions. Full coding requires ODIS. SGW may restrict functions.
Adaptive Cruise Control Radar Module (ACC Radar)1.2 hr R&Rdealer / factory tool +1.0 hr▸ programming details
📍 Front bumper, center behind grille
🔧 ODIS Service with radar alignment tool
⚠️ Radar alignment and calibration mandatory. SGW-locked. Requires special alignment procedure.
Airbag Control Module (ACM)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Center console tunnel, beneath center armrest
🔧 ODIS Service
⚠️ Crash data clearing and component protection. SGW-locked.
360-Degree Camera Control Module (Area View)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Rear cargo area or integrated with MMI system
🔧 ODIS Service
⚠️ Multi-camera system requires calibration. Component protection active. SGW-locked.
Door Control Module (DCM)1.0 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Inside each door (driver, passenger, rear doors)
🔧 ODIS Service or VCDS
⚠️ Window and mirror calibration required. SGW may restrict some aftermarket tools.
Digital Matrix LED Headlight Control Module (AFS / Headlight Modu)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Inside headlight assembly (one per side)
🔧 ODIS Service with camera calibration
⚠️ Digital Matrix LED requires camera-based calibration. Component protection active. SGW-locked.
Kessy Control Module / Keyless Entry (Kessy)1.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Dashboard, center console area
🔧 ODIS Service
⚠️ Key programming and immobilizer adaptation mandatory. Component protection active. SGW-locked.
Blind Spot Radar Module (Side Assist Radar)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Rear bumper, left and right sides behind trim (one per side)
🔧 ODIS Service
⚠️ Radar calibration required. Component protection active. SGW-locked.
Adaptive Air Suspension Control Module (Adaptive Suspension)1.0 hr R&Rdealer / factory tool +0.8 hr▸ programming details
📍 Rear cargo area, center
🔧 ODIS Service
⚠️ Ride height calibration required. Enhanced damping control. SGW-locked.
Telematics Communication Unit / 5G Module (TCU / Audi Connect)1.0 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Rear cargo area, left side behind trim panel
🔧 ODIS Service
⚠️ Requires online activation and subscription pairing. 5G connectivity. SGW-locked.
Seat Memory Control Module (Seat Module)0.8 hr R&Raftermarket tool +0.2 hr▸ programming details
📍 Under front seats (driver and passenger if equipped)
🔧 VCDS or Autel
⚠️ Seat position calibration required. Heated/ventilated/massage functions may need adaptation.
Digital Instrument Cluster / Virtual Cockpit Plus (IC / Cluster)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Dashboard, behind steering wheel
🔧 ODIS Service
⚠️ Mileage programming requires dealer authentication. Enhanced graphics and calibration. SGW-locked.
Park Assist Plus Control Module (PLA / Park Assist)0.8 hr R&Rdealer / factory tool +0.5 hr▸ programming details
📍 Rear cargo area, left side behind trim
🔧 ODIS Service
⚠️ Enhanced parking functions. Sensor and camera calibration required. SGW may restrict aftermarket tools.
Trailer Control Module (Trailer Module)0.8 hr R&Rdealer / factory tool +0.3 hr▸ programming details
📍 Rear cargo area, left side behind trim (if factory tow package equipped)
🔧 ODIS Service or VCDS
⚠️ Trailer detection and lighting functions. SGW may restrict some functions.
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.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years.
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