An RAC Mobile Mechanic using a diagnostic machine inspecting a car for an alternator repair.A mechanic using a diagnostic machine to inspect a car vehicle engine
Service, Repairs & MOT

Alternator repair in Weymouth

Book an RAC Mobile Mechanic and we’ll come to you at home or work.

  • 12-months parts guarantee
  • Honest pricing
  • Exceptional customer service

£423.87

Average price for this repair in Weymouth in the last 30 days^

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for an alternator repair?

With RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage. They can do an alternator repair on your driveway, so you don't even need to leave the house.

All our alternators are OEM standards, that means we only use parts that meet your vehicle manufacturer’s strict quality criteria, ensuring top quality and reliability. With a 12-month guarantee, you can trust our replacement alternators to last. The price includes fitting – no hidden costs. Just friendly, honest experts.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick in Weymouth

We’ll come to you at home or work

RAC Mobile Mechanic in Weymouth

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At the RAC, we’ve got over 125 years’ experience in offering complete peace of mind® to our members. We’re best known for our breakdown service. And now – our new RAC Mobile Mechanics are here to help make every day motoring easier. If you need a service or repair, they’ll come to you at your home or work.

An RAC Mobile Mechanic using a diagnostic machine inspecting a car for an alternator repair.

Book an alternator repair

If your car’s battery keeps dying or electrical systems are acting up, it could be a faulty alternator. Your alternator should charge the battery properly, and if it doesn’t, you could need an alternator repair.

We use original equipment manufacturer (OEM) standard parts, which means every new part will be the same standard and same quality as the original part it replaced.
Our mobile mechanics are friendly, honest, and backed by the RAC.
Close up of an RAC Mobile Mechanic running a vehicle diagnostic check

Vehicle diagnostic check

£99

We’ll spend up to 30 mins checking your car’s onboard management system for faults. We’ll talk you through repairs needed and provide a full report. If any further work is needed, we’ll agree this with you before we start. Any additional work after the first 30 minutes will be priced at £20 per 15 minutes. We’ll agree this with you before proceeding.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors
If we detect any issues, we'll talk through what needs to be repaired. We’ll give you a no-obligation quote to fix it on the spot, if we can. Or we’ll recommend a local RAC Approved Garage, and give you a full error report to take there.

Average cost of an alternator repair by car make^

The cost to repair your car alternator will depend on the car you drive. According to RAC data, the average cost to repair a car alternator is £458. But you can check out the average price of an alternator repair for your specific car make here.

Make

Average Price

Ford

£435

Volkswagen

£466

Vauxhall

£436

Nissan

£478

Toyota

£417

BMW

£495

Peugeot

£469

Renault

£477

Mercedes-Benz

£525

Citroen

£445

^Average price quoted for RAC Mobile Mechanics from 01/01/25 to 31/03/25.


And it’s not just alternator repairs that we do in Weymouth

Mobile mechanics bring the garage to you, saving you the hassle of getting your car to a garage. If you need a service or repair, they’ll come to you at your home or work.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

Casterbridge Motor Group Ltd

Family run Mercedes-Benz Specialist in Dorset's county town. We are also RAC Approved offering to undertake warranty work. Offering a wide range of Automotive options at competitive prices including: * MOT(by appointment) * Servicing (including Digital Service Book) * Repairs * Diagnostics * Air Con servicing and repairs * Clutches * Brakes * Tyres and Exhaust * Courtesy Vehicle * Local Collection & Delivery service * Car sales with warranty
Millers Close, Grove Trading Estate, Dorchester, DT1 1ST

MRG Auto Repair located on 54A BELENA CLOSE BH17 7DY

MRG is a qualified and honest Garage, able to diagnose and repair many kinds of problems in your car or van, ask for a quote right now. We are located on 54A Balena close BH17 7DY We are an expert car-servicing garage providing comprehensive servicing solutions, Free MOT pre-checks and repairs situated in Poole. we are uniquely equipped with the specialist equipment to undertake MOT pre-checks, general repairs, all makes servicing and a variety of work to electrical systems around your vehicle. At MRG Auto Repair in Poole, you can be assured that only an expert will work on your vehicle. Looking to book Servicing or a Free MOT Pre-Check online in Poole? You now can with MRG Auto Repair! Use our interactive live, real-time booking system to book an MOT pre-check, diagnostics or ECU Remapping service. It has never been easier, using our live system you can find the date and time that suits you, we can even send out servicing reminders for the following year so you never miss a thing. Choose our Poole based servicing and repair centre for quality services and trustworthy technicians https://www.mrgautorepair.co.uk/contact-us/ Please look at our Google reviews
54A Balena Close, Poole, BH177DY

Graham Hill Motor Technician

Graham Hill Motor Technician is a family run business which has grown from strength to strength over the years. We offer a host of services, ranging from but not limited to routine servicing and maintenance, brakes, clutches and repairs. We are also an RAC approved garage working in line with The Motor Ombudsman Code of Practice - promising higher levels of customer service.
20A Mannings Heath Road, Poole, BH124NQ

Auto Solutions Axminster

The best in town - We are one of the leading vehicle repair, diagnostic & servicing garages across Devon, Somerset & Dorset. Based in Axminster we border 3 large counties making us appealing and convenient to a wide range of customers. If you want quality you would expect from the dealership, but with more personal and friendly atmosphere then you have found it. We have invested in all the latest specialist tools and diagnostic software that is specifically tailored for the software in your vehicle. Our Auto Repair shop is capable of servicing a variety of models. We only do the work that is needed for your problem.
Units 1, 2 And 3 Castle Gates, Castle Hill, Axminster, EX135RL

J Day Engineering

Your vehicle is in safe hands with our dedicated, highly skilled team. From initial booking through to key handover, our staff are on hand to assist with any queries, ensuring your vehicle remains in peak condition. J Day Engineering are proudly accredited by leading industry bodies, giving complete confidence in our workmanship and customer care. Motor Trader Independent Garage of the Yearand 2024. We utilise the very latest technologies and equipment to deliver service standards that exceed main dealers across the UK. This includes 2 x Hunter Hawkeye Elite alignment to allow commercial vehicle alignment, Hunter Quick Check Drive and Quick Tread Edge, advanced ADAS calibration systems, EV and hybrid servicing, and comprehensive diagnostics for modern vehicles.
J Day Engineering, Bow Bridge, The Marsh, Henstridge, BA8 0TF

Frequently asked questions about car alternator repairs

Driving with a bad alternator isn't a good idea. A failing alternator can make the battery drain fast, leading to a breakdown. Electrical parts may also stop working, which can be unsafe. It’s best to get the alternator checked and fixed or replaced as soon as you can.

When the alternator fails, the battery won't charge and will drain. This can make the car stall and prevent it from starting. Electrical parts like lights, radio, and power windows may stop working. Get help from a mechanic right away to avoid more damage.

Alternator reconditioning means fixing an old alternator by replacing worn-out parts. This can be cheaper than buying a new one, but it may not last as long as a new alternator.

The cost of an alternator varies by the type of car and the quality of the alternator. To know exactly how much, you should talk to your local mechanic.

Yes, alternators can be repaired if the damage isn't too bad. If the alternator is very damaged, it may be better to replace it.

Replacing an alternator is often worth it if the alternator is old or very damaged. A new or rebuilt alternator can work better and prevent future problems. Talk to a mechanic to help make the best choice.

Alternators usually last between 80,000 and 150,000 miles. But it can vary based on where and how you drive, and maintenance. Regular check-ups and fixing problems early can help it last longer.

Some alternator repairs or replacements may be covered under the car’s warranty, especially if the car is still new. Check your warranty details or talk to your mechanic to see if it's covered.

They’re often not covered by standard car insurance policies because they're thought to be part of your vehicle's upkeep. But, if it's damaged in an accident, it might be covered.

You need an alternator replacement when it's very damaged or has worn-out parts that can't be fixed. If it's not keeping the battery charged or causes electrical issues, you'll need to replace it.