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 Sudbury

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

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

£450.76

Average price for this repair in Sudbury 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 Sudbury

We’ll come to you at home or work

RAC Mobile Mechanic in Sudbury

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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 Sudbury

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

Kestrels Motor Company

We are a small professional team that offers sales servicing and repairs. We provide one of the best services for MOT tests at our Garage in Halstead. By using highly experienced staff and equipment you can be assured your car is in good hands to be inspected. Kestrels Motor Company have fully qualified and experienced staff that can supply and fit brakes for all makes and models at competitive prices. At Kestrels Motor Company we can cure most types of diagnostics on your car. Looking to buy tyres for your car? Kestrels Motor Company can get you driving safe and legal on the road. We carry an extensive range of batteries, which are available to be fitted while you wait. Ranging from a 3-year, 4-year & 5-year warranty.
Bluebridge Industrial Estate, Unit 6 Third Avenue., Halstead, CO92SX

GB Autos

We are an idependant garage thats a member of the RMI & IMI. We aim to carry out work to main dealer levels & above with our clean & well equiped workshop. GB Autos has Diagnostic Equipment equivalent to your main dealer, we can under take any jobs from correcting your tyre pressures to full engine rebuilds. GB Autos is now RAC Approved & are a Bosch Car Service Centre so we have passed a stringent audit & are able to work under the RAC & Bosch Banner. You can be assured that we are using the very best parts on your car for servicing & repairs & all our parts carry a 1 year warranty so rest assured that you are getting the very best Independent Car workshop possible.
Unit 46, Broton Drive, Halstead, CO91HB

Great Horkesley Garage

First established in 1994, we have decades worth of experience to tackle anything you challenge us with! We are a very successful, family run business that provides MOT, servicing, fuel sales and a shop for everyday essentials. Our mechanics are fully qualified and committed to providing a high quality service at reasonable prices on all makes and models of cars and vans.
The Causeway, Great Horkesley, CO64EJ

Mitchells Motors Repairs Ltd

MITCHELL'S Motor Repairs is Haverhill's leading independent garage, the only AA & RAC Approved and Trading standards approved independent garage in the area giving you peace of mind. Here at MITCHELL'S we put the customers best interest in everything we do to give cost effective repairs & maintenance, exceptional customer service and have workshops with the latest diagnostic equipment and Technicians trained to manufacture standards. We have been serving the local community of Haverhill and the surrounding villages for 30 years with 3 generations on the Mitchell family working passionately within the business. As we say.... 'You're in safe hands'
20-22 Hollands Road, Haverhill, Suffolk, CB98PP

Euro Pit Tyres LTD (Bury St Edmunds)

Europit Tyres – Bury St Edmunds Welcome to Europit Tyres Bury St Edmunds – your trusted local garage, proudly part of a family-run business with over 25 years of successful trading across the region. At our Bury St Edmunds branch, our team offers over 85 years of combined experience in vehicle servicing, repairs, MOTs, and tyre fitting. We’re committed to providing honest, reliable, and friendly service with no pushy sales tactics, just genuine advice and high-quality workmanship. Whether it’s a routine service, brake repair, MOT test or a new set of tyres, we treat every job with care and attention to detail. Why choose us? - We offer competitive pricing without compromising on quality - Our experienced team takes pride in getting the job done right, first time - We only use trusted parts and follow manufacturer recommendations - We're fast, efficient, and flexible – with convenient appointment times - Above all, we care about building long-term relationships with our customers At Europit Tyres Bury St Edmunds, you’re not just another booking, you’re a valued customer. Book today and experience the difference of a garage that puts your satisfaction and safety first.
Unit 5 Cratfield Road, Bury St Edmonds, IP327DF

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.