Auto Alternator repair made easy

A fair price in seconds, mechanics you can trust, next-day service at your door

149000+
Customer Reviews
4.8

Up to 50% cheaper than franchise dealers

Instant fixed price quotes
(no hidden estimates)

Fully vetted & qualified mechanics

1 year parts & repairs warranty

Next day bookings at your home or office

Get your car repaired at your home or office

Top Mechanics For Auto Alternator Repair & Replacements

114 Reviews

Garage in Bristol , 12 years of experience

I have worked as a mechanic for twelve years started out as HGV mechanic for five years moved on to cars for the last seven years.my duties included were engine strip down and rebuild,clutches,timing chain a...

48 Reviews

Garage in , 15 years of experience

We take on all types of mechanical work along with mot tyre change servicing etc. we also will offer a recovery service where your vehiacle can be collected from your door and dropped off.

35 Reviews

Garage in Gravesend , 20 years of experience

20 years experience in mechanical work with loads of qualifications work for bmw and Ford garage

44 Reviews

Garage in Birmingham, 5 years of experience

We have qualified mechanic having 10+ years of experience in mechanical works, from car servicing to engine replacement we cover all mechanical works, special discounts for regular clients,

35 Reviews

Garage in Accrington , 30 years of experience

Unity Tyres provide a comprehensive range of services for the motorist of today. With over 30 years experience in the motor trade we are a on call mobile service on a journey to promptly take care of all...

21 Reviews

Garage in Aylesbury , 23 years of experience

As a mobile mechanic i got a lot of experience and lots of private jobs done on cars and get them back on the running and made them to get long term life

37 Reviews

Garage in Dewsbury , 10 years of experience

Been a mechanic since I was 17 went through an apprenticeship and now I’m a clutch and cam belt specialist and happy to do other services and am now a qualified mot tester as well been working on cars for th...

102 Reviews

Mobile mechanic in Leicester, 7 years of experience

If you require car services such as advanced professional car diagnostics, electrical repairs, dash cam installation, cambelt replacement, clutch replacement, tire puncture repairs, jump-start assistance, or...

23 Reviews

Garage in Kempston, 12 years of experience

True CarFix Servicing provides reliable and friendly garage services, car servicing and vehicle repairs for customers in Bedford. ​ Although our garage is new in town provides quality car repairs and servi...

122 Reviews

Garage in Wigan, 17 years of experience

I've worked in the motor trade for around 17 years my services include mot's, tyres, brakes, suspension, diagnostic and servicing

34 Reviews

Garage in London, 9 years of experience

I have worked for more than 5 years at BMW in the German city of Stuttgart, and at Mercedes for more than 4 years, and I am proud of them and the experience they gave me in the field of car repair and engine...

36 Reviews

Garage in London, 9 years of experience

Worked in various establishments such as; Serks motorwork, Japanese and German car speaialist, Endless, BMW specialist, Burhan Motors, General car mechanic, gearbox specialist. I have also assisted other b...

2 Reviews

Garage in Peterborough, 22 years of experience

I have been in the motor trade for over 20 years, I have ample experience and for me providing great customer service is key.

7 Reviews

Garage in Edinburgh, 8 years of experience

Business owner since 2016, qualified mechanical engineer, automotive detailer and mechanic.

10 Reviews

Garage in Luton, 25 years of experience

Hello everybodies I am hugely experienced mechanic from Luton LU3 saints area. I have more than 25 years of dealing with all types of cars big and small. I've fixed many vans and motor homes in that time ...

Frequently asked questions about Auto alternator repair & replacements

Read our answers to questions about alternator repair costs, symptoms and more.

What does an alternator replacement on my Auto involve?

  • Mechanic will inspect the car's battery charging system.
  • Mechanic will inspect the alternator's ancillaries (drive belt, cables etc.)
  • Mechanic will test the voltage output of the alternator.
  • If necessary, the mechanic will replace the alternator.
  • Mechanic will advise if any other parts of the electric system need to be replaced.
  • Mechanic will test the charging system and will test drive the car.

What are the symptoms of a bad Auto alternator?

  • When the battery warning light on the car's dashboard has lit up.
  • When the battery is not being recharged

How long does it take a mechanic to replace an alternator on my Auto?

On average, alternator replacement times can range from 1 hour to 2.5 hours with an average of just over 1 hour. The time that the job takes will depend on a number of factors, like your vehicle's make and model, year, as well as other factors. Select your car at the top of this page for information on job time and cost for your vehicle through ClickMechanic.

How often should I replace an alternator on my Auto?

Generally alternators only need to be replaced if there is an issue with them. Should you experience any problems like those listed it is important to have the battery charging system inspected and, if necessary, have the alternator replaced.

As the demand for more and more electrical equipment and devices on modern vehicles increases, the demand on the alternator is increased. Therefore whilst the units themselves have improved dramatically in design and reliability, this is outweighed by the increased reliance on it. So, alternator replacement is a frequent repair on most vehicles at some point.

What are the signs of a bad Auto alternator?

If the battery light remains on with the ignition (and does not go out once the charging is in operation), or comes on with the engine running then there is an issue with the alternator generating power and the battery will not be recharged. It is important to get a professional mechanic to check the issue as soon as possible.

How can I extend the lifetime of my Auto alternator?

Because it is not possible to turn the alternator off and it will therefore always be turning when the engine is running, there is little you can do to prevent wear and tear. Obviously as an electrical device, they do not like water, so avoiding flooding is important!

How much does an alternator replacement on Auto cost?

On average, a typical alternator repair costs £250, with prices ranging from £150 to £400. Ultimately, cost depends on your location, car and what parts your car's manufacturer recommends using for the replacement. Find out what you could save by having your alternator replaced by ClickMechanic by selecting your car at the top of this page!

Can a bad or faulty alternator affect a new battery on my Auto?

A bad alternator can damage a new battery if the battery is not receiving the proper charging voltage. While it may not completely destroy it, a faulty alternator can cause a new battery to drain more quickly than it should.

Can an alternator on my Auto fail suddenly?

Alternators can fail suddenly, but more often than not they will slowly lose their ability to charge the battery and eventually die. So even if it fails while driving, you may still be able to drive the car a few miles before the car comes to a complete stop.

How do I check if my Auto alternator is working properly?

The easiest way to check if your alternator is working is to start the car and let it idle. Then, turn on all of the car's accessories one at a time. If the car's battery dies while the accessories are on, then the alternator is not working.

Additionally, the battery should be tested for voltage. If the battery is low, the alternator may not be charging the battery. Depending on the electrical system, a voltmeter reading in the 13.8 to 15.3 volt range with the engine running, lights and accessories off, generally indicates that the alternator is working as it should be.

Can I jumpstart my Auto with a bad or faulty alternator?

If the battery is not dead, then yes, you can jumpstart a car with a bad alternator, but it will only run for a short period of time before the battery is drained again.

What happens when the car alternator fails while I am driving on my Auto?

If your alternator dies while driving, your car will eventually lose power and come to a stop. You may notice the first signs of a dying alternator with dimmed interior lights and warning lights on the dashboard. The best thing to do in this case is find a safe place to stop and call for professional help.

How do I fix a bad Auto alternator?

In most cases the alternator would be replaced if it bad or faulty. Alternators can be refurbished but often getting a new one fitted is more cost-effective. An alternator is an electrical component that is key to supplying power to your car so fixing it is a job best left to qualified technicians.

Can local garages offer home collection and delivery for Auto alternator repair?

Yes, many local garages are able to offer collection and delivery for an alternator repair on your Auto. With ClickMechanic collection & delivery is free if your vehicle is drivable. Once booked a mechanic will pick up the vehicle on the day and time of your choice, do the work, and return the vehicle at a time convenient to you. Simply enter your vehicle registration number and postcode to get an upfront price for a alternator repair on your Auto.

Can mobile mechanics do Auto alternator repair at my home or office?

Yes, mobile mechanics can do an alternator repair at your home or office on your Auto, provided there is a safe and sufficient space to conduct the repair or replacement. With ClickMechanic, once booked for a date and time of your choice, your booking will be offered to vetted mobile mechanics in your area.

Want to know what the average price you'd pay through ClickMechanic?

We use industry standard data & millions of data points so you know what you should be paying

These estimates may include Alternator.

Name Average Cost

Estimates on average repair costs, such as the above results for an alternator repair, are based on ClickMechanic's quote data which combines multiple third-party sources. Actual costs may vary. We provide estimates on average repair costs for information only and accept no liability for any inaccuracies or errors. If you think an estimate is incorrect, please contact us to let us know.

Book a trusted mechanic today

Get an instant quote, then book a vetted mechanic to fix your car at your home or office.

  • Vetted mechanics
  • Save up to 50%
  • Fast online booking

Book repairs for hundreds of makes and faults