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
682 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
52 Reviews
Garage in Swindon, 20 years of experience
Fat Bustards Motors Limited provides vehicle servicing, maintenance, and repair services for cars and light commercial vehicles. The business undertakes a wide range of mechanical work, including routine ser...
STUART • 23rd August 2026
BMW 1 Series • Additional work following previous booking
1 Reviews
Garage in Norwich , 30 years of experience
Motor Vehicle Technician & Specialist — 30+ Years Experience Qualified to NVQ Level 3 in Motor Vehicle Mechanics from Norwich City College, with three decades of hands‑on experience across all vehicle makes...
36 Reviews
Garage in Waltham Abbey, 5 years of experience
At Swift Auto Engines Repair Centre, we combine decades of automotive expertise with cutting-edge technology. Based in Waltham Abbey, our team of certified technicians is dedicated to delivering exceptional ...
10 Reviews
Garage in Southend-On-Sea, 20 years of experience
DD Motors offers a wide range of automotive services to keep vehicles in peak condition. Services include routine maintenance such as oil changes, brake repairs, and tire services, along with more complex en...
64 Reviews
Garage in Norwich, 12 years of experience
Full time mechanic for the last 12 years. Carrying out all work on vehicles. Clutches Timing belts Timing chains Turbos All types of servicing Diagnostics Etc
4 Reviews
Mobile mechanic in Chesterfield , 6 years of experience
With 6 years of experience as a mobile mechanic, I’ve worked for two established companies, carrying out a wide range of mechanical repairs and servicing. I’m a time-served mechanic who has grown up aroun...
MICHA • 22nd August 2026
Land Rover Range Rover Velar • Diagnostic Inspection
205 Reviews
Garage in Lisburn, 27 years of experience
We are a Lisburn based company that SPECIALISES in Pre Purchase Vehicle Inspections and are NUMBER ONE through our own business and Click Mechanic in Northern Ireland for this service, covering Super cars to...
YUKARI • 22nd August 2026
Mazda CX-30 • Premium Pre-purchase Inspection
92 Reviews
Garage in Waterlooville, 11 years of experience
D.N Motor Services offers all aspects of vehicle servicing and repair, including but not limited to: Locking wheel nut removal Clutch replacements Routine servicing and maintenance MOT failure re...
334 Reviews
Garage in Bethersden , 20 years of experience
I have been in the motor trade 20 years. During this time I have worked for independent garages including BMW and Mercedes main-dealers. I have progressed through the ranks as a master tech and workshop co...
DAVID • 22nd August 2026
Kia Stonic • Full Service
285 Reviews
Garage in Coventry , 14 years of experience
Hybrid and Electric Vehicle Combined. Mechanic level 2 Stratford College. London. Auto electrician Diagnosis. Alison Graduate. Ford Dagenham London. Auto windscreen coventry. Auto windscreen electricia...
277 Reviews
Garage in Dunstable , 8 years of experience
As a dedicated mechanic, I take immense pride in my work, knowing that every repair and every adjustment I perform keeps vehicles running smoothly and safely. My hands are skilled, my mind is sharp, and my p...
NICOLA • 22nd August 2026
MINI Mini Countryman • Diagnostic Inspection
14 Reviews
Garage in Croydon, 7 years of experience
Brooklyn Automotive is a trusted independent garage specialising in vehicle servicing, diagnostics, MOT preparation, and mechanical repairs for all makes and models. With a commitment to high-quality workman...
PATRICK • 22nd August 2026
Vauxhall Mokka • Thermostat housing replacement
2 Reviews
Garage in Dewsbury, 6 years of experience
I have 6 years experience as an independent mechanic. I pride myself in clean, quality workmanship at fair prices. I also have hybrid vehicle experience
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
- A&G Mot Service Centre, Crowborough
- AUTO GEM CARS, Birmingham
- Auto Demons Cymru, Ferndale
- Automotive Fabrication And Repairs, Leamington Spa
- Call The Mechanic, Andover
- GP Autos MK Ltd, Milton Keynes
- LJ FLEETSERVICES LIMITED, Bedworth
- MSS Mobile Mechanics, Manchester
- MW Automotive Solutions, Exmouth
- Pilsbury Motorsport, Towcester
- RS Motors (Walsall) Ltd, Walsall
- Repayr My Car, Ayr