A customer in the garden with an RAC Mobile Mechanic in the background.A close-up of a customer tending to her garden with an RAC Mobile Mechanic in the background.
Service, Repairs & MOT

Glow plugs repair for your Subaru

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

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

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a glow plug 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

Our top pick for your Subaru

We’ll come to you at home or work

RAC Mobile Mechanic for your Subaru

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.

A customer tending to her garage with an RAC Mobile Mechanic in the background

Book a glow plugs repair

If your diesel engine is having trouble starting, especially in cold weather, it could be faulty glow plugs. Our mobile mechanics can come to you at home or work to replace defective parts, all without the hassle of getting to a garage!

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 our 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.

And it’s not just glow plug repairs that we can do for your Subaru

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

P D Vehicle Services Ltd, Bosch Car Service

4.6/5

PD Vehicle Services Ltd was formed in 2011 by Pep and Dan, two highly skilled individuals already very well established within the motor trade. Both dreamed of opening their own garage, with the aim of becoming one of the largest, most well-respected and well-equipped independent garages in the area. Since opening PD Vehicle Services, Pep and Dan have expanded the garage into what you see today; a workshop full of the latest diagnostic and testing equipment, including state of the art camera measured four wheel alignment equipment and a multi class MOT Bay that can test mopeds, motorcycles, cars, minibuses, motorhomes and 3.5t vans. With ten Ramps, including two 5.5 ton commercial ramps, two floor level flush mounted ramps for low sports cars and a dedicated diagnostic bay, PD Vehicle Services Ltd now employ ten members of staff full time, with two members reception staff and a full time driver. PD Vehicle Services are an accredited Bosch service centre having to meet stringent standards to carry the Bosch brand, we are also are an RAC Approved repairer as well as an AA Approved garage. Serving local residents with privately owned vehicles to national fleet contracts running huge fleets of vehicles for ‘household name’ companies, the workshop caters for all types of vehicle maintenance and repairs. We also carry out warranty repair work for major companies such as warranty wise, the AA, Warranty direct and the RAC. We can offer you a whilst you wait service on all servicing jobs, with a turnaround of no more than 2 hours, depending on the job. This service MUST be pre-booked as we will need to have the parts already waiting for your arrival in the garage. We have a very large and comfortable waiting room at your disposal which offers comfortable sofas, a TV with Netflix, refreshments, a work station with Wi-Fi available should you need to work. Nothing is too much trouble so please feel free to get in touch and ask any questions.
Unit 4 Soho Mills London Rd, Hackbridge, SM6 7HN

New Garage (Harnham)

5.0/5

New Garage (Harnham) ltd was established in 1984 and has been providing quality vehicle repairs and servicing in the Salisbury area for over the past 30 years. Our 4 highly trained and experienced mechanics/technicians have over 90 years of combined experience between them working on motor vehicles. We work with all makes and models and specialise in Electric and hybrid vehicles; the technology for these vehicles has been developing greatly over the last 20 years and we have kept up to date with all the technology, tools and training to be able to repair and service electric/hybrid vehicles of all makes and models. We are an RAC Approved garage and we only use high quality parts and all parts and labour we provide come with a standard 12-month warranty for added peace of mind. If you need your car picked up, a lift home or a courtesy car please let us know and we will do all we can to assist you. We look forward to hearing from you.
28-30 Harnham Trading Estate, Salisbury, SP2 8NW

Ferdotti Motor Services Ltd

5.0/5

Ferdotti Motor Services is a reputable family owned business based in West Bromwich and have been established for over 30 years. As a local vehicle service centre we offer a wide range of services for cars and commercial vehicles including: MOT testing, servicing, repairs, diagnostics, laser wheel alignment, engine re-conditioning, welding and fabrication and bodywork. The quality of our work is reflected in our loyal customer base.
40 Pleasant Street, Lyng, West Bromwich, B70 7DP

California car and commercials Ltd, Bosch Car Service

4.4/5

We are a established MOT and service centre run by two brothers with a combined experience of 15 years in the motor trade. Our new site on Garrard Way, Kettering consists of 5 service bays and a class 4, 5 & 7 MOT bay. Our aim is simple, to be a one stop shop for all your motoring needs. Wether it be your annual MOT and service or more major work our highly experienced staff are on hand to help. We have a clean, modern premises with state-of-the-art technology and equipment including the most up to date Snap-On class 4, 5 & 7 MOT bay. We run our own fleet of recovery vehicles so collection and delivery is always available. Feel free to call Tony or Mario for any of your vehicle needs
Garrard Way, Telford Way Industrial Estate, Kettering, NN168TD

Reliance Auto Test Bicester

4.3/5

Reliance Auto Test has been in business for many years, branching out to our Bicester branch providing a one stop shop for all your Car & Van requirements. We have served local residents of Bicester and surrounding areas with a friendly, high quality service that has kept us in business. All our staff are fully qualified vehicle technicians and we are fully insured. Many of our customers come back year after year enjoying a service that is personal and great value. We are open for business 5 days a week, Monday to Thursday 8.00am - 6 pm, Friday 8.00am - 5pm and Saturdays By appointment only “Honesty is our best policy.
Unit 16, Wedgewood Road, Bicester, OX26 4UL

Frequently asked questions on glow plug repair

A glow plug heats the air in a diesel engine to help it start, especially in cold weather.

When a glow plug fails, your engine might be hard to start, producing more smoke, engine misfires, and poorer performance.

You can, but it’s not a good idea. It can lead to poor engine performance, increased emissions, and overall damage.

Glow plugs typically last between 60,000 to 100,000 miles. Read your car’s manual and have them checked regularly.

It’s tricky and needs specific tools, so it’s best to let a mechanic handle it.

Replacing faulty glow plugs can improve engine start-up, reduce emissions, save fuel, and prevent engine damage.

It depends on your car’s warranty terms. They’re often not covered since they’re a wear-and-tear item, check with your warranty provider.

Yes, all diesel engines use glow plugs for starting, especially in cold weather. Regular maintenance and replacements are vital for the best performance.

Failures can be due to electrical issues, carbon build-up, corrosion, or incorrect installation. Regular maintenance helps prevent this.