Top Mechanics For Subaru Alternator Repair & Replacements
34 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
654 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
52 Reviews
Garage in Taunton, 23 years of experience
We are a father & daughter run mobile mechanic service based close to Taunton but coverage stretches as far as Weston to Exeter and all in between. I started messing with cars when i turned 8 and have worked...
3 Reviews
Garage in London, 8 years of experience
Worked as a Vehicle Mechanic at Car Fixers, carrying out vehicle servicing, diagnostics, maintenance, and mechanical repairs on a wide range of vehicles. Gained experience in engine repairs, brake and suspen...
381 Reviews
Mobile mechanic in Wellingborough , 10 years of experience
Hi I’m Michal. I've been doing cars for about 10 years specifically for Vehicle Mechanical, Electrical and Trim (MET) Technician last 2.5 years. Had lots of training in recent VW group technology so that’...
ADRIAN • 27th June 2026
413 Reviews
Mobile mechanic in Stoke-On-Trent, 5 years of experience
As an independent mechanic always aim for the best, always happy to go the extra mile for all our customers.
DEBORAH • 27th June 2026
MG ZS SUV • Full Service
80 Reviews
Mobile mechanic in Sedgemoor, 5 years of experience
Experienced Mobile Mechanic with a strong background in diagnosing, repairing, and maintaining a wide range of vehicles in on-site and roadside settings. Skilled in performing engine diagnostics, brake repai...
ANITA • 27th June 2026
Ford B-Max • Oil sump/pan replacement
11 Reviews
Garage in London, 20 years of experience
With over 20 years of hands-on experience in the motor trade, I have developed strong technical and diagnostic skills across a wide range of vehicles. I specialise in repairs, maintenance, fault finding, eng...
78 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 are VWAG (vw & audi group) specialist who can also update your digital service...
ALEX • 27th June 2026
Audi A3 Cabriolet • Diagnostic Inspection
15 Reviews
Garage in Leicester, 13 years of experience
Kwikfit - Service Technician Available Car - Diagnostic Technician Evans halshaw - Technician Level 3 hybrid electric qualified.
104 Reviews
Mobile mechanic in Nunenton, 30 years of experience
I've worked on vehicles for over 30 years from bikes to lorries. In that time I've learnt a lot of skills and don't mind working with different types of vehicles weather thats on or off road type. I have a g...
DANIEL • 27th June 2026
Ford Ka+ • Timing belt replacement
151 Reviews
Garage in High Wycombe , 14 years of experience
We are an established automotive garage with more than 10 years experience in the motor trade. From basic servicing and brakes to cambelt, clutches and turbos our mechanics are trained to carry out a number ...
MICHAEL • 27th June 2026
Ford Focus • Air conditioning condenser replacement
271 Reviews
Garage in London, 8 years of experience
I bring over a 8 years of hands-on expertise in the automotive industry, making me a seasoned car mechanic you can trust. Throughout my career, I've worked with a diverse range of vehicles, from compact cars...
146 Reviews
Garage in Reading, 24 years of experience
PopesWood Garage 1998-2003 Mechanical Training TCD cars (self employed) 2004-2012 - Car Repair, maintenance. LACC Country cars 2012-2016 Car repair, maintenance and mechanical prep Japonica Cars 2016-date...
EMILY • 27th June 2026
Vauxhall Insignia • Diesel particulate filter (DPF) chemical clean and regeneration
179 Reviews
Garage in Abbots Road , 25 years of experience
Over 25 years experience in fixing cars,10 years of preparing rally cars. Studies: University and Master in auto vehicle engineering,all mechanical jobs done along my experience as clutches,timing belt,wet ...
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 VERNON, Redruth
- Auto King Technology, Westerham
- Car Clinic Glasgow Ltd, Glasgow
- Class 7 Ltd, London
- Dj Cars, Hanbury
- Eagle Eye Automotive, Basingstoke
- HM Automotive Repair, Bury St Edmunds
- JAZ MOBILE MECHANICS, London
- Jks Diagnostics Ltd, Bury St. Edmunds
- METLTECH Fleet Support, Leicester
- MKD Automotive, Milton Keynes
- Mk Servicing And Repairs Ltd, Reading
- Windsor Road Garage Ltd, Bedford
- Wycombe Mots, High Wycombe