Top Mechanics For Subaru Alternator Repair & Replacements
39 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
668 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
20 Reviews
Garage in Nottingham , 7 years of experience
At MOTs We Do, we offer range of comprehensive services at our garage including MOT testing for Cars and Commercial Vans. Established in 2016, we have assembled a reliable team to take care of your vehicle n...
PAUL • 1st August 2026
Vauxhall Insignia Sports Tourer • Interim Service
243 Reviews
Garage in Radcliffe , 30 years of experience
Started when left school. Did training with YTS at Vauxhall main dealer in Bolton, then went on to national tyres, went on to charlie browns where I became a MOT tester. Worked at Honda in Bolton for 3 years...
279 Reviews
Mobile mechanic in Cheltenham, 9 years of experience
About Me. I came here from Hungary where i used to work for 3 years at a Volkswagen Dealership. Before that and during these 3 years i was also working at my fathers garage because he is a qualified mechani...
ANASTASIA • 1st August 2026
Ford Grand C-MAX • Diesel particulate filter (DPF) chemical clean and regeneration
590 Reviews
Garage in Middlesbrough , 12 years of experience
BMW Mini Rolls Royce Independent BMW group dealer level diagnostics and able to write official BMW service history. BMW Master Tech ZF Gearbox Specialist Diagnostics; Smoke Tests ISTA (BMW GROUP...
KABIR • 1st August 2026
BMW 3 Series • Plug-in Diagnostic Inspection
10 Reviews
Garage in Wokingham , 12 years of experience
12 years+ experience in motor vehicle repair. Main dealer trained. I am able to carry out a wide range of repairs on most makes and models. I'm always happy to help
JAGJIT • 1st August 2026
Renault Megane • Brake discs and pads replacement - rear (both)
25 Reviews
Mobile mechanic in Shrewsbury, 14 years of experience
I am a highly experienced motor vehicle mechanic with over 20 years in the industry, having worked in both Zimbabwe and South Africa. I gained my professional qualification 14 years ago after completing more...
125 Reviews
Garage in Havant, 10 years of experience
Over 10 years experience mobile and for local garages. We offer services at your location and at your convenience.
59 Reviews
Mobile mechanic in Wolverhampton, 19 years of experience
With over 19 years of experience in the automotive industry, we provide professional mobile mechanic services across the UK. We have extensive hands-on experience and work with OE and high-quality aftermark...
6 Reviews
Mobile mechanic in Sompting , 5 years of experience
Honesty and quality are the bread and butter to what I do. After working at Mercedes Benz main dealer and an independent specialist for many years I’ve decided to become a mobile mechanic to bring an honest ...
MILES • 1st August 2026
Volkswagen Polo • Brake discs and pads replacement - front (both)
222 Reviews
Garage in Nottingham , 15 years of experience
I am the owner of the garage, we have been operating for the past 16 years. We are able to carry out all kinds of repairs including diagnostics, servicing, brakes, suspension, clutches, timing belts, gear bo...
187 Reviews
Garage in Tamworth, 10 years of experience
•BMW & Mini Trained level 3 technician •Vauxhall trained technician •Trained & experienced service technician •Level 3 trained diagnostics technician •Experienced trouble shooting & technical procedures...
PAUL • 1st August 2026
BMW 3 Series • EGR valve replacement
428 Reviews
Mobile mechanic in Leighton Buzzard, 12 years of experience
We can carry out all types of repairs no jobs too big or too small
363 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...
MATTHEW • 1st August 2026
Toyota Yaris • Exhaust pipe replacement - rear/tail/silencer
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 R Autos, Bishops Waltham
- Auto Care Center, Dover
- Autodroma, Chertsey
- Car M.D. Mossley Ltd, Mossley
- Cornwall's Mobile Mechanic, St Cleer
- DMC Vehicle Solutions, Midlothian
- Rct Garage Services, Eastwood
- Ryan Flint, Norwich
- SD Autocentre, Ilford
- Sbl Mobile Tyres T/A Hi Q Tyres, Ashford
- Steves Autos, Milton Keynes
- Thunder Drift Team Tyres, Reading
- Timing Chain Gatwick, Smallfield
- Windsor Autocare Services, Billericay