Top Mechanics For Subaru Alternator Repair & Replacements
24 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
535 Reviews
Garage in Uckfield , 20 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
15 Reviews
Mobile mechanic in Shrewsbury, 10 years of experience
Trained in a busy independent workshop, I have since had experience working in Audi main dealer, aswell as senior technician at HiQ and 3 years working in Australia and NZ. I am now run my own business...
94 Reviews
Mobile mechanic in Chessington, 20 years of experience
Conduct comprehensive vehicle inspections for MOT testing, ensuring compliance with UK road safety standards. • Perform engine diagnostics and repair electrical and mechanical issues using advanced diagnos...
231 Reviews
Mobile mechanic in Milton Keynes , 12 years of experience
We can carry out all types of repairs no jobs too big or too small
PATRICK • 2nd November 2025
Alfa Romeo Giulietta • Timing belt replacement
57 Reviews
Garage in Wembley, 15 years of experience
Experienced Automative Mechanic with over 15years of hands on expertise in diagnosing and repairing vehicles. Specialised in repairing vehicle engines, Servicing, Clutch repair, Brake system and Electrical c...
HUGH • 2nd November 2025
Toyota Yaris • Brake discs and pads replacement - front (both)
310 Reviews
Mobile mechanic in Maidenhead , 30 years of experience
I have worked in the car repair industry for over 30 years. Operating as a mobile mechanic in this area for over 25 years
BENEE • 2nd November 2025
Citroen C3 Aircross • Full Service
18 Reviews
Garage in Hemel Hempstead, 10 years of experience
I started out working for a Jaguar Land rover specialist where I completed my apprenticeship, in the 4 years I worked across a broad range of manufacturers and undertook almost every type of mechanical, elec...
PHILIP • 2nd November 2025
Fiat 500 • Full Service
234 Reviews
Mobile mechanic in Bury, 9 years of experience
I began my career with LandRover where I completed my apprenticeship and was with the company for around 3 years. I moved to BMW/Mini for 5 years before setting up my own mobile mechanic business in 2016 cal...
119 Reviews
Garage in Northampton, 7 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...
25 Reviews
Garage in Bristol, 20 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...
466 Reviews
Mobile mechanic in Northamptonshire , 28 years of experience
With over 20 years of hands-on experience in the motor industry, I bring a wealth of knowledge and a passion for quality vehicle repair and diagnostics. I began my career with a Ford dealership, gaining a st...
DAWN • 2nd November 2025
Jaguar F-PACE • Diagnostic Inspection
51 Reviews
Garage in Nr Leominster., 36 years of experience
Having worked on thousands of Vehicles, Here at Carbon Pro Limited & Pro Tuning & Tyres, our experienced Mobile Technicians are capable of repairing and refurbishing a Vast range of vehicles. Our primary Bus...
8 Reviews
Mobile mechanic in Hamilton , 15 years of experience
I have over 14 years of experience working on cars. I offer a range of services including Wrong fuel draining Add blue reset Car major servicing Exhaust work Hybrid Battery Repairing Suspension work ...
RAY • 2nd November 2025
Renault Arkana • Bonnet wont open inspection
66 Reviews
Garage in Birmingham, 15 years of experience
Specialist in modern vehicle technology Using Genuine main dealer level diagnostic tools/equipment * REMAPS * AC GAS * DIAGNOSTICS * REPAIRS Qualified Electricians Specialising in vehicle electrical diagnos...
DAVID • 2nd November 2025
Fiat Punto Evo • MOT with collection & delivery
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
- ANR TYRES LTD, Rainham
- Abel's Mobile Service & Repairs, Middlesbrough
- Bear Diagnostics, Tadworth
- Dj Motor Engineer, Bungay
- Greenlight Garage, Stoke On Trent
- J.S MECHANICS, Bolsover
- JK Auto Services, Stroud
- JR Auto Services, Cinderford
- JTC Autos, Edinburgh
- LMA Autotech, Gloucester
- M4mobilemechanics, Bradford
- MAD Motors, Heacham