Service, Repairs & MOT

Alternator repair for your BMW

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

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

£445.30

Average price for this repair for your Bmw in the last 30 days^

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for an alternator repair?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

RAC Mobile Mechanic

Our top pick

RAC Mobile Mechanic

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.

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

Book a diagnostic

For when you know something isn’t right, but you’re not sure what – our mobile mechanics are here to help.

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.

And it’s not just alternator repairs we can do for your BMW

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.

Try one of our RAC Approved Garages

Active Tyres,Servicing & MOT

4.7/5

We're open 6-days-a-week: Monday - Friday : 8.30am - 6pm Saturdays: 8:30am - 5pm Sundays: CLOSED We are, above all, local people in local garages. Our commitment to quality services stems from the simple foundation that we’re members of communities that we care about. We’re all about honest MOT tests and vehicle services at honest prices. We're the leading fast-fit supplier of tyres in the country and carry stocks of over 600,000 products from leading manufacturers including Pirelli, Goodyear, Michelin, Continental and Dunlop
216 Bellingdon Road, Chesham, HP52NN

Awan Auto Tec

4.7/5

Awan Auto Tec are an independently run garage based in Ardwick, Manchester, which has been established since 2016. We have a team of three very experienced, fully qualified City & Guilds and IMI approved technicians, who are also VOSA approved MOT testers. We carry out class 4 MOT’s in house as well as all forms of mechanical repairs, MOT repairs, maintenance work and servicing. We undertake work on all makes and models of vehicles, with no job being too big or too small. Our standard opening hours are 9-5 Monday to Friday and 9-2 on Saturday. With prior booking, Sunday appointments MAY be available. We also offer our customers a recovery at a reasonable price, with distance being no issue. We pride ourselves on the quality of our work and we use good quality original equipment parts, and we guarantee all of our work. Extra 10 % discount available upon proof of ID for; NHS staff Charity organisations Motor traders Armed forces members
Unit 1 Millgreen Street, Ardwick, Manchester, M126FB

Car M.D. (Mossley) LTD

4.8/5

Car M.D. (Mossley) LTD in Mossley.
Car M.D (Mossley) Ltd, Mossley, OL59BG

D&A Autos

5.0/5

D&A Autos of Witney offer an independent personal service backed up by over 40 years experience. Although we are well known as Volvo specialists within the Oxford/Witney area, we also deal with all other makes of cars. Offering a full service from MOT/Repairs to selling carefully selected used cars. Our staff are hand picked and are also fully skilled. We feel we can offer you a service that is not only personal but highly skillful and professional. We have a good modern workshop with 4 bays fitted out by ourselves, and have daily deliveries from most franchises to cater for all makes. We also carry out diagnostic work and specialist work for other garages in the Witney/Oxford area and welcome trade enquiries.
154 Newland Industrial Estate, Witney, OX28 3JH

Witney Vehicle Repairs Ltd

4.6/5

Here at Witney Vehicle Repairs we have over 30+ years of experience, pride ourselves on our commitment to give the very best in car repairs, servicing, diagnostics, & customer satisfaction. Our pricing is very competitive with no hidden surprises, We look forward to earning your trust & gaining your custom. And now we are proud to announce we have become an RAC approved garage offering RAC inspections, repairs and other RAC products. Also we are part of the RMI & and trust my garage network, We are now offering a Shell / Forte vehicle service, parts & preventative solutions package please contact us for more information.
Witney Road, Standlake Business Park, Witney, OX297PR

Frequently asked questions about car alternator

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 is 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.