Book a Glow Plugs Repair in Hertford

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 Hertford

We’ll come to you at home or work

RAC Mobile Mechanic in Hertford

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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!

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 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.

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 do in Hertford

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

D & B AUTO CARE

Welcome to D&B Autocare in Hertford, we are car repair specialists carrying out all your car servicing needs, we provide a wide range of services. Car servicing in Hertford Major engine repairs Clutches/Gearbox Batteries Timing belt/Chain replacement Exhaust Brakes and many more

Unit 12, Mimram Road, Hertford, SG141NN

Herts And Essex Commercials

Car & Van Servicing & Repairs 24 Hour Breakdown Recovery Service

Rennesley Works Anchor Lane, Wadesmill, Herts, SG120TE

JN Tyres Autocare Ltd.

JN Tyres Autocare Ltd 7 Swallow End, off Swallowfields Welwyn Garden City Herts AL7 1JA

Swallow End, Welwyn, Hertfordshire, AL71JA

SpinFix Tyres & Auto Services Welwyn Garden

At Spinfix, we pride ourselves on being more than just a tyre service – we’re your complete autocare partner. Our team of skilled and experienced technicians ensures that every job, from emergency tyre fitting to full MOT servicing, is carried out with precision and care. We combine professional expertise with affordable pricing, offering transparent costs and excellent value without compromising on quality. With a wide range of services available under one roof – including tyres, brakes, diagnostics, and complete workshop solutions – we make it easy and convenient to keep your vehicle in top condition. Whether you visit our fully equipped workshop or call us for mobile tyre fitting, our goal is always the same: fast, reliable service and complete customer satisfaction. Choosing Spinfix means choosing trust, efficiency, and peace of mind on every journey.

Unit D 27 Bridge Rd East, Welwyn Garden City, AL71JE

Collect Service Go

We are a professional reliable garage. Customer satisfaction and vehicle safety is an our main priority! All repair work comes with 1 years parts and labour warranty, we also only use OE quality parts, this guarantees any manufactures warranty you may have. Meaning even the newest Cars can be brought to Collect Service Go. Specialise In Car servicing and maintenance, MOT Testing, Brakes, Tyres, Clutches, and General Repairs. Collection and delivery available please contact for more details.

Unit 2 East Burrowfield, Welwyn Garden City, AL74TB

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.