Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2025A4 ALLROAD PREMIUM PLUSREPAIR AND DIAGNOSISELECTRICALCOMPONENT LOCATIONSCOMPONENT LOCATIONS: CONTROL MODULES IN MIDDLE PART OF VEHICLECOMPONENT LOCATIONS: CONTROL MODULES IN MIDDLE PART OF VEHICLEMEMORY SEAT/STEERING COLUMN ADJUSTMENT CONTROL MODULE -J136- / PASSENGER MEMORY SEAT CONTROL MODULE -J521- COMPONENT LOCATION AND CONNECTOR END VIEWNOTES
2025 Audi A4 allroad Premium Plus
Memory Seat/Steering Column Adjustment Control Module -J136- / Passenger Memory Seat Control Module -J521- COMPONENT LOCATION AND CONNECTOR END VIEW: Notes
2025 Audi A4 allroad Premium PlusSECTION Notes
Component Location
At bottom of seat.
Fig 1: Memory Seat/Steering Column Adjustment Control Module -J136- / Passenger Memory Seat Control Module -J521- Component Location And Connector End View
- 1 - Memory Seat/Steering Column Adjustment Control Module -J136- / Passenger Memory Seat Control Module -J521-
- A -
20-Pin Connector -T20a- / -T20b-, black
- 20-Pin Connector -T20a- on Memory Seat/Steering Column Adjustment Control Module -J136-
- 20-Pin Connector -T20b- on Passenger Memory Seat Control Module -J521-
- B - Not used
- C -
4-Pin Connector -T4aa- / -T4ab-, black
- 4-Pin Connector -T4aa- on Memory Seat/Steering Column Adjustment Control Module -J136-
- 4-Pin Connector -T4ab- on Passenger Memory Seat Control Module -J521-
- D -
26-Pin Connector -T26b- / -T26c-, blue
- 26-Pin Connector -T26b- on Memory Seat/Steering Column Adjustment Control Module -J136-
- E -
26-Pin Connector -T26- / -T26a-, white
- 26-Pin Connector -T26- on Memory Seat/Steering Column Adjustment Control Module -J136-
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.