Question 1

How much does electrical fault repair cost in Friern Barnet?

Accepted Answer

Costs vary depending on the fault. A diagnostic check starts from around £55–£85. Simple fixes such as a blown fuse or faulty relay are typically low-cost. More complex repairs such as alternator replacement or wiring harness work will cost more. At MnF Motors we always provide a clear, written quote before any work begins so there are no surprises.

Question 2

How long does an electrical fault repair take?

Accepted Answer

Many common electrical faults — such as a bad earth connection, faulty sensor, or blown component — can be diagnosed and repaired within a single day. More complex intermittent faults or wiring issues may take longer. We will always give you a realistic timeframe when you book.

Question 3

Can an electrical fault cause an MOT failure?

Accepted Answer

Yes. Warning lights, non-functioning lights, faulty horn, wipers, or other electrical components are all MOT failure points. Resolving electrical faults before your MOT gives you the best chance of a first-time pass.

Question 4

What are the most common car electrical faults?

Accepted Answer

The most common faults we see are battery drain, alternator failure, faulty sensors triggering warning lights, damaged wiring, blown fuses, failing starter motors, and malfunctioning lighting circuits. Modern vehicles have increasingly complex electronics, making professional diagnosis essential.

Question 5

Do I need to book in advance for electrical fault repair at MnF Motors?

Accepted Answer

We recommend calling ahead on 020 8088 3150 to book a slot so we can allocate the right time and equipment for your vehicle. We serve Friern Barnet and surrounding areas and aim to accommodate bookings as quickly as possible.