Alternator Repair in Coleraine

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Is your battery not charging? Do your headlights dim when you press the accelerator? If so, you probably have an Alternator Fault.

A new alternator may be necessary to power your engine sufficiently and ensure safety.

Along with alternator repair, battery problems may also be an indication of starter motor failure.


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Top garages for Alternator Repair in Coleraine (7 found)
James Wylie Repairs And Car Sales
12 Job Completed
Antrim
5.0 / 5

Welcome to your local friendly garage, we are an independent garage providing local service and knowledge at competitive prices. We are part of the Eurorepar Car Servi

Burnside Garage Ltd
Member since 23 June 2020
Coleraine

We are members of the Bosch Car Service Network which is a national network of independent garages. Our objective is to provide you with a friendly and professional servi

Roadside Garages (Coleraine)
Member since 17 November 2015
County Coleraine

Ease your mind and book your car into Roadside Garages now for its complete Service and check up, each and every car will receive a complete FREE check over and report by

James Wylie Auto Repairs and Car Sales
Member since 27 April 2017
Bushmills

Auto Repairs and Car Sales

Lindsay Ford Coleraine - Service Department
Member since 29 September 2011
Coleraine

"Right People. Right Parts. Right Prices. Nobody knows Ford like Lindsay Ford Coleraine - Service Department. To ensure your vehicle remains safe, well-maintained and wit

Rapid Fit - Coleraine
Member since 29 September 2011
Coleraine

At Rapid Fit - Coleraine all Makes and Models are welcome - we look forward to receiving your enquiries.

Alternator Repair in Coleraine
Frequently asked questions
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What is a car alternator?

The car's alternator performs a simple but vital job: to keep your car's battery charged. The battery is responsible for starting the car, spark plugs, lights, electrics, and sometimes power steering - quite a job - so it's essential that it's topped up - and that's what the alternator does.

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What are common problems with an alternator?

The alternator acts like a small generator: the engine spins, and the alternator turns that spinning motion into electricity. The most common problems are worn brushes (the component that maintains constant electrical contact with the spinning alternator) and a failing voltage regulator (which ensures that the charge is sent to the battery at the correct voltage.)

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What are the common symptoms of alternator problems?

Common signs of car alternator problems include the 'charge' or battery lights flashing on the dashboard, flickering or dimming headlights and interior lights and a growling or whining noise under the bonnet.

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What is the average alternator repair cost?

An alternator can be rebuilt as opposed to replaced, however in truth the difference in cost is often quite small. Either way the most common repair cost is around £150-200.

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How to test an alternator for problems

A simple way to test an alternator for problems is to do what's known as the headlight test. Park your car with the headlights on or run it in neutral, then rev the engine. If the headlights dim you could well have an alternator problem. A better test is to take your car to a garage, where a car alternator can be tested using a multimeter tool.

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What happens if my alternator breaks?

If your alternator fails, your car battery won't charge and, very soon, will have insufficient charge to start the car.

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Gary from Complete Mechanics explains the workings of the alternator