Top Mechanics For Subaru Alternator Repair & Replacements
40 Reviews
Garage in Deal, 12 years of experience
Fully Level 3 qualified light vehicle technician, offering fully insured mobile mechanic services across Kent. Qualified Class 4/7 MOT Tester Hybrid/EV Level 1 FGas (Air con)
DAVE • 27th January 2025
Subaru Legacy • Alternator replacement
691 Reviews
Garage in Launceston , 25 years of experience
Full range of mechanical work including full diagnostic equipment, service and repair, welding, mot prep, car delivery
AMARNATH • 28th September 2024
Subaru Forester • Additional work following previous booking
655 Reviews
Garage in Fareham, 13 years of experience
Joseph Bloomfield Mobile Mechanic. The business covers all makes/models & repairs, so no job is too big or too small. I cover the South Coast area & beyond.
FARIDAT • 12th September 2026
5 Reviews
Mobile mechanic in London, 20 years of experience
I am a fully qualified and experienced vehicle technician and MOT tester with over 10 years of hands-on experience working on a wide range of cars and light commercial vehicles. Throughout my career, I have ...
115 Reviews
Garage in Solihull, 14 years of experience
Welcome to NexGen Auto-Serve, The independent vehicle buying expert: Helping you find the right car with quality used car checks, advise, photos - we also offer a vehicle sourcing and a buyers concierge s...
6 Reviews
Garage in Burton Upon Trent , 8 years of experience
Been working as a mechanic for 8 years. I have worked on a wide range of vehicles, and I'm always happy to help.
303 Reviews
Garage in Burntwood, 15 years of experience
I have 15 years' experience working on cars. I am able to do all the repairs you need doing including, inspections, servicing, brakes, suspension, clutches, and much more. We have a garage that you can bring...
47 Reviews
Mobile mechanic in West Midlands , 7 years of experience
15 years as a mechanic working for some of the UK's leading workshops, 6 years as a mobile mechanic to now operating both mobile and at a fixed garage location
CHRIS • 12th September 2026
Fiat Tipo • Interim Service
11 Reviews
Mobile mechanic in Inverkeithing, 5 years of experience
I have been in the mechanic industry for over 5 years I have done a lot of different things on cars I have ripped a engine out and rebuilt it fixed parts etc I can do any type / size of cars / vans Over t...
56 Reviews
Mobile mechanic in Birmingham , 11 years of experience
Apprenticeship at Nissan Worked at a car supermarket for 2 years growing my knowledge on multi brand Worked as an agency mechanic for the past 3 years working in a range of main dealers
DAWN • 12th September 2026
Hyundai Tucson • Plug-in Diagnostic Inspection
190 Reviews
Garage in Stroud , 11 years of experience
Worked in garages for 10 years and decided to branch out on my own last year. I’m all about cars and I love working on them inside and out.
STUART • 12th September 2026
Skoda Karoq • Premium Pre-purchase Inspection
35 Reviews
Mobile mechanic in Gillingham, 6 years of experience
I have been passionate about cars my entire life, picking up my first tools at age 13. With over 22 years of hands-on experience working on vehicles, I have built my knowledge through real-world, practical p...
6 Reviews
Garage in New Malden , 12 years of experience
I am a highly experienced and dedicated Head Mechanic with over 10 years of experience in the automotive industry. Throughout my career I have worked on a wide range of petrol, diesel, hybrid and light comme...
ANGELA • 12th September 2026
Nissan Leaf • Diagnostic Inspection
1458 Reviews
Garage in Horton, 20 years of experience
Jon owns and operates SMS Autocare and has been running the business for over 15 years in the Slough area. Prior to setting up SMS Autocare Jon completed his apprenticeship and was then a mobile mechanic for...
SHARAD • 12th September 2026
Citroen C4 • Full Service
222 Reviews
Garage in Birmingham , 10 years of experience
I have been working in the motor trade since 2016 and I did apprenticeship for 2 years for a German Car Repair Specialist. Once qualified achieving my Level 3 in City and Guilds I was offered a job and been ...
LIAM • 12th September 2026
Skoda Fabia • Engine oil & filter replacement
Frequently asked questions about Subaru alternator repair & replacements
Read our answers to questions about alternator repair costs, symptoms and more.
What does an alternator replacement on my Subaru 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 Subaru 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 Subaru?
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 Subaru?
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 Subaru 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 Subaru 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!
Can a bad or faulty alternator affect a new battery on my Subaru?
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 Subaru 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 Subaru 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 Subaru 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 Subaru?
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 Subaru 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 Subaru alternator repair?
Yes, many local garages are able to offer collection and delivery for an alternator repair on your Subaru. 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 Subaru.
Can mobile mechanics do Subaru alternator repair at my home or office?
Yes, mobile mechanics can do an alternator repair at your home or office on your Subaru, 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.
How much does a Subaru alternator repair cost?
The cost for a Subaru alternator repair depends on the model of your Subaru. See the averages for different models below. 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 | |
|---|---|---|
| Subaru Forester | £375 | Get exact price |
| Subaru Impreza | £245 | Get exact price |
| Subaru Justy | £475 | Get exact price |
| Subaru Legacy | £280 | Get exact price |
| Subaru Tribeca | £528 | Get exact price |
| Subaru WRX | £367 | Get exact price |
Average costs for 5 models not shown due to insufficient data. Show ∨
- Subaru Trezia
- Subaru XV
- Subaru Outback
- Subaru Ignis
- Subaru BRZ
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.
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Mechanics that work on Subarus
- Acceler8 Motors, Birmingham
- Ace Technical Ltd., South Gloucestershire
- Autotech, Spilsby
- Daniel Mcdermott T/A Mobile Mechanic Southend, Rayleigh
- Eculogic Solutions, Maldon
- Evolution Hgv & Trailer Repairs Ltd, Wrexham
- Fix My Ride, Canvey
- Honest Ed's, Rochester
- Horizon Garage, London
- J.R Auto Engineering Ltd, Greens Norton, West Northamptonshire
- JB Autocare LTD, Milton Keynes
- Lloyds Garage Repairs Ltd, Neston
- MP Car Solutions Ltd, Leicestershire
- Mastermechanics, Glasgow
- Maxsmobileautocare, Southborough
- Mp Mobile Mechanix, Hull
- Naxys Autos, Barking
- Pbmotors, Sandy
- RC Recovery 24/7, Droitwich
- Rhoad And Sons Mot And Service, Southampton