Question 1

Why does my speedometer drop to zero while driving in Hertfordshire?

Accepted Answer

The most common cause is a faulty wheel speed sensor sending incorrect or no signal to the ABS module and instrument cluster. Other causes include a damaged vehicle speed sensor (VSS), corroded wiring or connectors, a failing instrument cluster, or a fault in the ABS module itself. MnF Motors carries out live data diagnostics to pinpoint the exact fault before any parts are recommended.

Question 2

Is it safe to drive when my speedometer drops to zero?

Accepted Answer

No. If the speedometer is dropping to zero, you have no reliable way of knowing your speed, which is dangerous and potentially illegal. If the ABS warning light is also on, your ABS system may not function in an emergency stop. We recommend booking a diagnostic appointment as soon as possible rather than continuing to drive.

Question 3

How much does it cost to fix a speedometer that drops to zero?

Accepted Answer

Costs vary depending on the root cause. A wheel speed sensor replacement is typically the most affordable fix. ABS module repair or recoding costs more but is still far cheaper than a main dealer. MnF Motors provides a clear, honest quote after diagnosis so you know exactly what you are paying for — with no hidden charges.

Question 4

Will a speedometer fault cause an MOT failure?

Accepted Answer

Yes. A speedometer that fails to register correctly, or an ABS warning light that is illuminated, are both MOT failure points. If your next MOT is approaching, getting this fault fixed promptly at MnF Motors will ensure your vehicle passes without issue.

Question 5

Do MnF Motors cover Hertfordshire for electrical fault repairs?

Accepted Answer

Yes. MnF Motors is based in Edmonton N18 and serves Hertfordshire and all areas within approximately 20 miles, including Cheshunt, Waltham Cross, Hoddesdon, Broxbourne, Ware, and Hertford. Call us on 020 8803 1231 to book your appointment.