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 DIAGNOSIS (SINGLE PAGE)ELECTRICALCOMPONENT LOCATIONSCOMPONENT LOCATIONS: CONTROL MODULES IN FRONT PART OF VEHICLECOMPONENT LOCATIONS: CONTROL MODULES IN FRONT PART OF VEHICLECONTROL MODULES ON FRONT HEADLAMP -MX1- / -MX2- COMPONENT LOCATION AND CONNECTOR END VIEWCONTROL MODULES ON FRONT HEADLAMP -MX1- / -MX2-, THROUGH JUNE 2019
2025 Audi A4 allroad Premium Plus
Control Modules On Front Headlamp -MX1- / -MX2-, Through June 2019
2025 Audi A4 allroad Premium PlusSECTION Control Modules On Front Headlamp -MX1- / -MX2-, Through June 2019
Component Location
At front of vehicle.
Fig 1: Front Headlamp Control Modules -MX1- / -MX2- Component Location And Connector End View (Through September 2019)
- 1 - Left LED Headlamp Power Output Stage 1 -A31- / Right LED Headlamp Power Output Stage 1 -A27-
- 2 - Left light control module -J1018- / Right light control module -J1023-
- A -
14-Pin Connector -T14l- / -T14r-, black
- Left Headlamp: -T14l-
- Right Headlamp: -T14r-
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.