Question 1

Why have my horn and hazard lights stopped working at the same time?

Accepted Answer

When both fail simultaneously the most likely cause is a shared circuit component — typically the clockspring (a coiled connector behind the steering wheel), a single blown fuse or relay, or a BCM (Body Control Module) output failure. Because they share wiring paths, one fault can knock out both at once.

Question 2

Will my car fail its MOT if the horn or hazard lights don't work?

Accepted Answer

Yes. A non-functioning horn is an automatic MOT failure. Hazard lights are also checked during the MOT and a fault will result in a fail. Both issues must be rectified before your vehicle can legally pass its test.

Question 3

How much does it cost to fix a horn and hazard light fault in Islington?

Accepted Answer

Costs vary depending on the root cause. A simple blown fuse or relay is inexpensive. A clockspring replacement is a moderate cost job. BCM diagnosis and repair is more involved. MnF Motors provides a transparent, no-surprise quote after pinpointing the exact fault — you only pay for what actually needs doing.

Question 4

How long does a horn and hazard light repair take?

Accepted Answer

A fuse or relay fix can be done in under an hour. Clockspring replacement is typically a half-day job. BCM-related work may take longer depending on programming requirements. MnF Motors will give you an accurate time estimate once the fault is diagnosed.

Question 5

Is MnF Motors able to repair my car if I'm based in Islington?

Accepted Answer

Absolutely. MnF Motors serves Islington and the wider area within approximately 20 miles of Edmonton N18 for all auto electrical work. Most Islington customers are with us in under 30 minutes. Call 020 8803 1231 to book.