Top Mechanics For Subaru Alternator Repair & Replacements
36 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
661 Reviews
Garage in Uckfield , 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
39 Reviews
Garage in East Sussex , 17 years of experience
Started off as an apprentice in a fast fit centre then went on to work at a main dealer for 7 years then to an independent shop working on cars and light commercial. Now working for myself giving customers t...
CHARLES • 19th July 2026
Vauxhall Insignia • Timing belt replacement
56 Reviews
Garage in Heywood , 5 years of experience
JA Repairs offers convenient and reliable mobile vehicle servicing and repair solutions. We carry out a wide range of mechanical work.
9 Reviews
Mobile mechanic in Ipswich , 15 years of experience
I have been working on cars for over 15 years. I can do pretty much anything from your day-to-day general repairs, including servicing, brakes, suspension, clutches, timing belts as well as any electrical is...
22 Reviews
Garage in Sidbury, 10 years of experience
Can carry out all repairs including clutches cambelts and ev and hybrid repairs and servicing. As well as breakdown and recovery work. I've had a vast experience of all types of vehicles from scooters to cla...
MIKE • 19th July 2026
Vauxhall Vivaro • Clutch replacement
269 Reviews
Garage in Kenilworth , 30 years of experience
30 years experience working for independent garages. Ten years working for myself. Working on all makes of car’s From Brake pads to Engine rebuilds.
357 Reviews
Garage in Leicester, 15 years of experience
At J.J. Auto Repair we always aim to be helpful and friendly. We offer a range of services including, Mobile mechanic, Diagnostics, Full service, Multimedia system fitting, and more...
MICHAEL • 18th July 2026
Volkswagen Polo • Exhaust pipe replacement - rear/tail/silencer
801 Reviews
Mobile mechanic in London, 9 years of experience
3 years at AVS where I started my mechanics as an apprentice, mastering general repairs and servicing on a wide range of vehicles , 2 years as a fast fitter in car giant. Perfecting replacing brakes, tyres ...
7 Reviews
Mobile mechanic in West Malling , 7 years of experience
22 years of training and fixing heavy duty machinery for huge global companies that’s 22 years of getting precision down to a science. For the last 8 of those, I’ve been channeling that expertise into cars: ...
SAMISANA • 18th July 2026
Kia Sportage • Brake pads replacement - rear (all)
23 Reviews
Mobile mechanic in London, 25 years of experience
I've been working as a mechanic for over 25 years and I work on all types of vehicles and I can offer a wide range or repairs.
STEVEN • 18th July 2026
Audi A3 Cabriolet • Turbocharger replacement
41 Reviews
Garage in Northampton , 10 years of experience
EFT is a wholesale and retail company with a mind on sustainability, business ethics and a fair attitude towards those that our business reaches. We are supplying all tyre brands.
17 Reviews
Garage in Warrington, 15 years of experience
We have been in the industry for over 15 years. We offer suspension work, clutches, brakes, servicing and tyres.
STEPHEN • 18th July 2026
30 Reviews
Garage in Manchester, 10 years of experience
I’m a qualified mechanic with a Level 2 NVQ and over 10 of hands-on experience. Based in Manchester, I proudly serve customers within a 50-mile radius. At Technospeed, I’m committed to delivering reliable, h...
THOMAS • 18th July 2026
Mercedes-Benz Vito • Diesel particulate filter (DPF) chemical clean and regeneration
8 Reviews
Garage in Coventry, 16 years of experience
KZ AUTOS Ltd provides MOT and comprehensive vehicle servicing, diagnostics, and repair services for cars and light commercial vehicles.
ALEXANDRU-IONUT • 18th July 2026
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.
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
Mechanics that work on Subarus
- ALL MOTORS LTD, Kirknewton
- Ac Automotive Wiltshire LTD, Corsham
- Ashton Service Centre, Bradford
- Blackers, Launceston
- C.V.E Diagnostics, Elland
- D.N Motor Services, Waterlooville
- Darlington Motor Vehicle Services Ltd, Darlington
- EL Performance, Spalding
- Griffins Mobile Mechanics, Bedfordshire
- Harris Morgan Mobile Engineering Services, Spalding
- Hibbert Vehicle Services Ltd, Thornton
- James Alker, Chorley
- MR, Wembley
- MVSR, Worcestershire
- MW Autohaus Ltd, Congleton