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.
Distance Regulation Control Module J428, removing and installing
Distance Regulation Control Module J428 is mounted on front of vehicle, behind VW-logo in the radiator protective grille.
Distance Regulation Control Module J428 must not be disassembled further and contains the following components:
- Adaptive Cruise Control Sensor G550
- Distance Regulation Sensor Heater Z47
Removing:
- Switch off ignition, switch off all electrical consumers and remove ignition key.
- Remove radiator grille → 66 EXTERIOR EQUIPMENT .
- Unclip Distance Regulation Control Module J428 - 1 - from the three mounts - 2 -.
- Swivel Distance Regulation Control Module J428 - 1 - forward, paying attention to lengths of connected wires.
- Disengage and disconnect harness connector - 2 - and remove Distance Regulation Control Module J428 from vehicle.
Installing:
Install in reverse order of removal, noting the following:
Adaptive Cruise Control Sensor G550 in Distance Regulation Control Module J428 is to be calibrated after:
- Every removal and installation of Adaptive Cruise Control Sensor G550,
- Every removal and installation, and replacement of assembly carrier,
- If there is a suspicion of forceful impact on these two parts, an accident during driving or similar.
Distance Regulation Sensor G550, calibrating → Adaptive Cruise Control Sensor G550, calibrating .
- When first commissioning or replacing Distance Regulation Control Module J428, initialize ADR → Initializing Automatic Distance Regulation (ADR) .
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.