Top Mechanics For Subaru Alternator Repair & Replacements
33 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
635 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
162 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 ...
1324 Reviews
Garage in Swindon, 20 years of experience
I did my apprenticeship at a garage in Swindon as I studied with Northstar College. After graduating I left and went to Charlie Browns auto services for 2-3 years. Following my time at Charlie Browns I went ...
ARUN • 30th April 2026
Nissan Qashqai+2 • Additional work following previous booking
23 Reviews
Garage in Birmingham, 6 years of experience
With many years of hands-on experience, I’ve moved from the tools to technical leadership, focusing on what keeps a car safe and efficient. I don’t just tick boxes; I specialise in the maintenance side of th...
138 Reviews
Garage in Aylesbury , 12 years of experience
Mobile mechanic specialist on diagnostic. Repair.parts replacement,maintenance of vehicle ,exhaust sistem gears box services,engine service
3 Reviews
Garage in Dumbarton, 10 years of experience
Over a decade of working on vehicles varying from main dealer work to classic and prestige vehicles.
19 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...
ADELE • 29th April 2026
Kia Sportage • Diesel particulate filter (DPF) chemical clean and regeneration
Garage in Stourbridge, 15 years of experience
Working in the motor trade 15 years and am able to do a range of repairs including: Servicing Brakes Clutch’s Cambelt Wet belts Ad blue problems Dpf faults
9 Reviews
Garage in Greenford, Perivale, 15 years of experience
With 15 years of experience as a master mechanic, I take pride in delivering reliable, high-quality mechanical and electrical repair work for all makes and models.
DAVID • 29th April 2026
Toyota Land Cruiser • MOT with collection & delivery
251 Reviews
Mobile mechanic in Cambridge, 10 years of experience
With over 10 years of experience, I am a highly skilled mobile mechanic specialising in general maintenance and vehicle repairs
52 Reviews
Garage in Merseyside, 16 years of experience
Worked in dealerships straight out of gaining my qualifications before spending some time in the breakdown industry. Now self employed with 2 mobile mechanic vans and a 4 bay workshop based in Seaforth, Mers...
608 Reviews
Garage in Harlow, 15 years of experience
I have been interested in the car repair industry for almost my entire life. The first few years were spent learning the trade and I went to college to study it properly. I worked at a garage as a BMW specia...
DAVE • 29th April 2026
BMW 3 Series • Starter motor replacement
4 Reviews
Garage in Sheffield, 40 years of experience
I’m a skilled garage mechanic working within a family-run business with over 40 years of experience in the motor trade. I have strong hands-on experience in diagnosing and repairing a wide range of vehicles,...
57 Reviews
Garage in Bristol, 21 years of experience
At LJR Auto Solutions, we pride ourselves on delivering high-quality automotive repairs and servicing with a personal touch. With years of hands-on experience in the motor trade, we have worked on a wide ran...
WILLIAM • 29th April 2026
Suzuki Swift • Clutch 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
- ALL MOTORS LTD, Kirknewton
- All Car Care, Broxbourne
- Auto Repairs Liverpool, Liverpool
- CK Automotive Specialists Ltd, Finchdean
- CK Mobile Mechanics, Fontwell
- Call The Mechanic, Andover
- Campbells Group, Huddersfield
- GJC REPAIR CENTRE LIMITED, Uxbridge
- GP AUTOFIX, 0
- Hulk Motors LTD, Ashford Kent
- Ironside Automotives, Camberley
- JM CAR SOLUTIONS LTD, London
- P & T Motors Ltd, Leigh
- Preston's Vehicle Repairs, Wednesbury
- Pro2 Vehicle Solutions, Teynham
- SRA Auto MOT Repair Centre, Denham
- TGR, Northolt
- Tdi Automotive, Wickford