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
637 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
21 Reviews
Garage in Purley, 7 years of experience
Autos BMS are qualified BMW Technicians specialising in maintenance, repairs, and Apple CarPlay integrations for BMW and MINI models from 2013 to present. High-quality services to accommodate today’s climate.
THOMAS • 6th May 2026
MINI Mini Clubman • Brake discs and pads replacement - rear (both)
485 Reviews
Garage in Hayes, 12 years of experience
Having being in the motortrade industry for over a decade, I have increased my knowledge dramatically by getting my level 3 in vehicle maintenance, then going onto university to study motorsport engineering ...
302 Reviews
Garage in Maidstone, 23 years of experience
Car, Truck & Motorcycle repairs & re-builds. All aspects of servicing & maintenance. Pre MOT checks and tests arranged. Timing belts/chains, Head gasket replacement, Turbo replacements and upgrades, Custo...
19 Reviews
Garage in Dudley, 7 years of experience
At MotoFix, we pride ourselves on our extensive experience in the motor repair industry. With years of hands-on expertise, we have built a reputation for providing top-notch service, precision repairs, and e...
20 Reviews
Mobile mechanic in Cambridgeshire , 35 years of experience
Richard Cox delivers reliable, high-quality service to keep vehicles running smoothly. As a 35 year experienced mechanic. There is not a lot of jobs that I haven’t seen over the years. Anything form basic se...
DENNY • 5th May 2026
Volkswagen Caddy Maxi • Glow plugs replacement (all)
103 Reviews
Garage in Blackwood, 20 years of experience
Xtec Mobile Mechanic is a well established with mobile vehicle repairs, serving and Diagnostics that specialises in Fords but covers all other makes and models.
ANTHONY • 5th May 2026
Ford Transit Custom • MOT with collection & delivery
65 Reviews
Garage in Birmingham, 10 years of experience
• Diagnosing vehicle faults manually or with the aid of software and digital tools • Preparing cost and time estimates for work done • Repairing and replacing faulty vehicle parts • Performing test drives...
139 Reviews
Garage in Solihull, 25 years of experience
Hi I’m Simon. I have 25 years experience in the motor trade in both electrical and mechanical jobs. I use the latest Autel scan tool and will always provide a full vehicle scan health check with an emailed ...
65 Reviews
Garage in Liverpool, 10 years of experience
Combining technical know-how with a personal touch, ST Garage delivers trusted and efficient service, ensuring vehicles are repaired and maintained to the highest standards.Based in Liverpool, ST Garage has ...
40 Reviews
Garage in Solihull, 14 years of experience
Welcome to NexGen Auto-Serve, we are mobile mechanics that caters to all types of jobs big or small we are happy to help. We can offer services and repairs, replacements keys, mobile valeting and retrofi...
PETER • 5th May 2026
Volvo XC70 • Car Won't Start Inspection
105 Reviews
Mobile mechanic in Knutsford, 15 years of experience
With 10 years experience with Nissan, Renault and Mercedes dealerships and 5 years working for independent workshops on various brands of cars I am in an excellent position to provide you amazing customer se...
11 Reviews
Mobile mechanic in Stowmarket , 8 years of experience
Experienced technician, fully equipped. Professional and excellent standard of work.
32 Reviews
Garage in Malvern, 21 years of experience
We service and repair all makes and models of vehicles. From small city cars to large SUVs, petrol and diesel engines, manual and automatic transmissions. Our experienced technicians have the knowledge and e...
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
- A&S MOBILE MECHANIC, Swansea
- Am Auto Repairs, Coleraine
- B M Mobile Motor Repairs, Tamworth Warton
- GJC REPAIR CENTRE LIMITED, Uxbridge
- Gordon's Autos, Louth
- Hgf Motors, Wellington
- Kent Mechanics & Tyres, Ulcombe
- M.J.H Autos, Pontefract
- Modern And Classic Garage Services, St Leonards On Sea
- Rapid Mobile Auto Diagnostics London, London
- Revolution Autos LTD, Soberton
- SUTTON MOTORS AND GARAGE LIMITED, London
- Tyre & Auto Direct, Greatwestern Road
- Veloce Automotive, Mexborough