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
633 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
101 Reviews
Garage in Norwich, 20 years of experience
I have almost 20 years of experience. I have worked in Car and Motorcycle dealerships. I'm a fully qualified level 3 diagnostic technician.
ADELE • 26th April 2026
1 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.
78 Reviews
Garage in Colchester , 6 years of experience
Over 6 years experience in mobile mechanics. Attending to various models of vehicles. Good work rate and efficient.
334 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
MIRIAM • 26th April 2026
Peugeot 208 • Major Service
116 Reviews
Garage in Romsey , 12 years of experience
I am a qualified and experienced motor vehicle mechanic with over 12 years of experience with in-depth hands-on experience in all vehicle service repairs, and Engine Rebuilds for all European car models such...
ALEX • 26th April 2026
Smart fortwo • Major Service
260 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...
LANZI • 26th April 2026
BMW 4 Series • Premium Pre-purchase Inspection
87 Reviews
Mobile mechanic in London, 5 years of experience
I began my career with Severn Cars in Croydon for 2 years working on all makes & models. I worked with a Vauxhall main dealer for around a year before moving into mobile mechanics for 2 years. I set-up my ow...
DONALD • 26th April 2026
Vauxhall Astra • Spark plugs replacement
3 Reviews
Mobile mechanic in Morpeth, 22 years of experience
With over 18 years of hands-on mechanical experience in the British Army. Today, I offer reliable, honest and high-quality repairs with a strong focus on safety and customer satisfaction. Whether it’s diagn...
13 Reviews
Garage in Tonbridge, 5 years of experience
I am a very happy and attentive person in my work, with extensive experience in car and van repair services, including oil changes, brake repairs, suspension repairs, engine diagnostics, and more.
10 Reviews
Mobile mechanic in London, 15 years of experience
Worked as a mobile mechanic providing on-site vehicle repairs and maintenance. Diagnosed faults, carried out services like brake and battery replacements, and ensured vehicles were roadworthy. Developed stro...
MARK • 26th April 2026
Ford S-MAX • Timing belt replacement
39 Reviews
Garage in Uxbridge , 11 years of experience
We are MOT garage with 11 years of experincw working as vehicle technicians and MOT inspectors. Our journey originally started in AMA motors in 2014 where I was repairing and inspecting customer cars, I was ...
131 Reviews
Garage in Chesham, 11 years of experience
BACK ON ROAD LTD offers a variety services on high quality standards, in no time such as: Electric and hybrid vehicles Diagnostics Coding Programming Brakes Exhaust Mechanical Electrics Upgrades ...
GARY • 26th April 2026
BMW 5 Series • Diagnostic Inspection
27 Reviews
Garage in Bournemouth , 35 years of experience
Hi there, I start vehicle mechanic 35 years ago, I stady German cars in Germany for 5 years, In the Uk I been working as mechanic since 1998 in dealership, Mercedes Bmw Vw etc My experience I can do fr...
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
- Cousins Auto Repairs, Newborough
- Darlington Motor Vehicle Services Ltd, Darlington
- Ellis Motorworks, Mayfield
- Head Services Ltd, Thetford
- JL Automotive, Bishops Storford
- JTD Performance Limited, St Ives
- KFAS Autos, Herne Bay
- Kevs Mobile Motors, Walsall
- Ks@Kt Ltd, Southampton
- MAD Motors Ltd, Saltash
- MB AUTO SOLUTIONS, Ramsgate
- Md Tuning, Mexborough
- Plasposal Ltd, London
- SM MOBILE MECHANICS, Wainscott
- T.K Mobile Mechanic, Preston