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 in Harrow

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 in Harrow

We’ll come to you at home or work

RAC Mobile Mechanic in Harrow

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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.

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 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.

And it’s not just glow plug repairs that we do in Harrow

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

AVS Ltd.

We are a well established local Harrow garage, providing a wide range of garage services including Servicing, MOT's, Bodywork Repairs, Tyres, Brakes and Clutches to name just a few. We cater for all makes and models of vehicles and use the latest equipment in our fully equipped workshop. Many services can be carried out while you wait or we can provide you with a courtesy car upon request.
109A Roxeth Green Avenue, Harrow, HA28AB

Kwik Fix Motors LTD

Our business has been established for over two decades and we proudly work in partnership with Madena Motors, based in South Harrow. We offer a one stop shop, delivering services BSB or B2C. We cover a wide range of services from MOTs class& 7 along with repairs to all brands of vehicles. Our staff are fully qualified operating to DVSA standards. We are also an AA and RAC approved garage. Please feel free to contact us for all you motoring needs.
2A Tudor Road, Harrow, HA35PE

The MOT Centre

Based in Hatch End, The MOT Centre has a team of expert mechanics on hand to deal with all your car repair requirments. Our repair service uses the most up to date tools and equipment to repair any make and model of car. We keep most a range of parts in stock, or parts can be delivered within the hour by one of our suppliers, so most work can be done while you wait. We can undertake insurance work and also offer sub-contracted work.
Cornwall Road, Hatch End, Piner, HA54LS

Car Care Centre - Wembley Ltd

Car Care Centre (Wembley) Ltd offers a trusted and efficient service to the local community, maintaining high standards in automotive care. Our team, led by the knowledgeable Dipesh, is dedicated to providing straightforward, honest, and professional automotive services. From minor repairs to major overhauls, each task is handled with precision and integrity. We believe in building lasting relationships with our clients, ensuring their vehicles receive the best care possible. Experience the difference at Car Care Centre, where exceptional service and customer satisfaction are at the forefront of our operations.
558 Market Way, Off Turton Road, Wembley, HA02BT

Yaash Motors.

Established in 1997, Yaash Motors trades is one of the leading car garages in Wembley serving trade and private customers throughout the north and west London areas. We provide a complete range of traditional services alongside professional body modifications primarily aimed at the popular Volkswagen Golf models. Yaash Motors specialises in the delivery of a professional, reliable service where fair, open and transparent pricing is a standard feature in all of our work. We have a comfortable customer waiting room where you can enjoy refreshments and WIFI. Our team strive to provide a fantastic customer experience and will always deliver you with honest and professional advice.
Unit 5A, 255 Water Road, Wembley, HA0 1JW

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.