Book a Glow Plugs Repair for your Mercedes

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 Mercedes

We’ll come to you at home or work

RAC Mobile Mechanic for your Mercedes

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!

OEM quality parts

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.

Mechanics you can trust

Our mobile mechanics are friendly, honest, and backed by the RAC.

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.

Diagnostic check

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

Full error report and advice on repairs

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 Mercedes

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

View all garages

Scallons Auto Services Ltd

4.7/5

Scallons Auto Services, is on Water Street, behind the new Tesco Express. At our Garage we aim to give our customers the satisfaction that all work has been carried out professionally, within a reasonable time frame, at a competitive price. We hope that all customers will return and recommend us to their family and friends.

58 Water Street, Thornton, Liverpool, L23 1TB

Swanmore Car Repair Centre

4.8/5

Swanmore Car Repair Centre is an independent repair garage established in 2008. We offer a wide range of services and commend ourselves by providing the best quality and efficiency on every single job we undertake. Our clean, modern and well-equipt premises allow us to welcome any repair and rectify it. We cover anything from a simple service, right through to a full engine rebuild. On-site we have a vast range of different diagnostics equipment from a range of leading suppliers. We can facilitate diagnostics to complete vehicle reprogramming depending on individual need. We can accommodate all vehicle make's and models and are happy to be able to provide you with a reputable dealer level of service, all for the price of an independent garage. Our team specialise in Clutch, Cambelt and Brake repairs and are proud to be rated a national top performer. We are members of the approved garage network This ensures you have peace of mind and confidence when repairing with us. All of our team here at Swanmore Car Repair Centre are fully qualified and trained to the highest standard. We strive in making sure we deliver professional work with results, always put the customer's needs first. Customer satisfaction is essential on each and every job, no matter how big or small. We are very pleased to be able to provide both a collection and delivery service within 10 miles, or a courtesy car subject to availability. Of course, however, you may just prefer to wait in our comfortable waiting room, with free Wi-Fi and refreshments on offer.

Unit 7 Swanmore Business Centre, Lower Chase Road, Swanmore, Southampton, SO32 2PB

Heath Mill Garage

5.0/5

A real alternative to the Main Dealers offering Servicing, Tyres, Exhausts, 4 Wheel Alignment, Air Con and much more. Conveniently located on Heath Mill Road, Wombourne, close to Sainsbury's we offer a full range of facilities with a reception and waiting room, we also have courtesy cars available. We use top quality parts such as Brembo Braking and Shell Oils to ensure your vehicle is running at it's best. We also update Electronic Service Records for modern vehicles without a service book.

Heath Mill Road, Wombourne, Wolverhampton, WV58AP

Diplock Fuel Injection Services Ltd

5.0/5

We at Diplock Fuel Injection Services Ltd are a professional and friendly company based in Hailsham. Established since 1985, with individuals having over 50 years experience our car mechanics offer an array of car maintenance services. We specialise in diesel fuel injection and MOT testing, and can offer a comprehensive selection of repair work. We have built up a highly sought-after reputation and we come highly recommended by people in the trade. We also pride ourselves on offering very good rates on MOT tests; so please contact us for an unbeatable price!

Unit 3/4 Avocet Way, Diplocks Way, Hailsham, BN27 3JF

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 on glow plug repair

What does my glow plug do?

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

What happens when my glow plug fails?

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

Can I drive with a bad glow plug?

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

How often should I replace my glow plugs?

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

Can I replace glow plugs myself?

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

Why should I replace faulty glow plugs?

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

Are my glow plugs covered by warranty?

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.

Is glow plug replacement necessary for all diesel engines?

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