Question 1

Why do ADAS fault codes appear after a battery replacement?

Accepted Answer

When battery voltage drops during a change or jump-start, the control modules that manage your camera, radar and sensor systems lose their stored calibration data. The modules revert to a default or invalid state and log fault codes to flag that calibration values are missing or out of range. The systems then disable themselves as a safety measure until recalibration is performed.

Question 2

How much does ADAS calibration cost in Winchmore Hill?

Accepted Answer

MnF Motors offers full ADAS calibration from £150. The exact price depends on your vehicle make, model and which systems require recalibration. We provide a clear, no-obligation quote before any work begins — no hidden charges.

Question 3

Is it safe to drive with ADAS fault codes stored?

Accepted Answer

You can physically drive the vehicle, but safety systems such as autonomous emergency braking, lane-keep assist and adaptive cruise control will be inactive or operating in a degraded mode. This means you lose the safety protection those systems provide. We strongly recommend booking diagnosis promptly.

Question 4

Can the codes just be cleared without recalibration?

Accepted Answer

No. Clearing the codes without performing a proper calibration will cause them to return immediately or on the next ignition cycle, because the underlying calibration data is still missing or incorrect. The fault must be resolved at root cause — not masked.

Question 5

How long does ADAS calibration take at MnF Motors?

Accepted Answer

Most ADAS calibration procedures take between 60 and 90 minutes once the vehicle is on our calibration targets. We will give you a realistic time estimate when you book so you can plan your day.