Components

The electrical system consists of: battery (12V lead-acid or AGM), alternator, starter motor, fuse box, wiring loom, ECUs, sensors, switches, lighting (headlights, indicators, tail lights), horn, windscreen wipers.

Petrol & diesel vehicles

Conventional vehicles use a 12V electrical system powered by the alternator when the engine is running and the battery when stationary.

Hybrid & electric vehicles

Electric vehicles have both a high-voltage system (300-800V for the drivetrain) and a conventional 12V system for accessories. Only qualified EV technicians should work on the high-voltage system.

Common faults

The most common electrical system faults we see across Bradford and West Yorkshire include: battery not holding charge, slow cranking, alternator warning light, blown fuses, intermittent electrical faults, parasitic battery drain, faulty sensors, non-working lights.

If you notice any of these symptoms, book a diagnostic session or call us on 01274 442192.

Typical costs (labour)

Battery replacement: £80-£180 labour. Alternator replacement: £150-£300. Starter motor: £120-£250. Sensor replacement: £50-£120. Wiring repair: £60-£150/hour.

Prices are illustrative and vary by vehicle. Enter your registration for an instant accurate quote for your specific car.

Related systems

Engine System · Diagnostic Services

Areas we cover

We provide electrical system repairs across: Bradford, Shipley, Keighley, Ilkley, Pudsey, Bingley, Guiseley, Cleckheaton, Brighouse, and 50+ more locations within our 10-mile service zone.

Brands we service

Our technicians work on all makes including: BMW, Audi, Mercedes, Volkswagen, Ford, Vauxhall, Toyota, Kia, Hyundai, Nissan, plus 40 more. View all services →