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

Our mobile mechanics will spend up to 30 minutes checking your car for faults and talk you through any repairs you might need and give you a report for your records. Plus, when we’ve diagnosed the problem get £50 off mobile mechanic repairs over £150 – for a limited time only. ^†T&Cs apply. Offer ends 17/08, 23:59.

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

Maidenhead Auto Repair Centre

5.0/5

Maidenhead Auto Repair Centre are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute. In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. Since 1985, we have been building our Maidenhead garage and investing in the latest equipment so that we’re always one step ahead. We specialise in all makes and models of vehicles for Servicing, Mechanical Repairs, Bodywork and Accident Repairs plus MOT’s, Valet Services and Fleet Cars, which has enabled us to become the largest independent auto repair centre in Maidenhead. Our Maidenhead repair workshop is fully equipped with the latest technology to carry out all types of mechanical work from routine servicing to major overhauls and repairs. We accommodate four separate working bays all with hydraulic lifts and exhaust gas extraction. Each station employs its own fitting bench and full set of tools For body work, all spraying is carried out in our Nova Verta Booth which is large enough to accommodate all cars and Light Commercial Vehicles (LCV’s). We also have built in infrared heaters which allow the booth to perform low temperature baking to ensure a durable finish. If you’re looking for bodywork repairs in Maidenhead, then you’ve come to the right place.

M.A House, Cordwallis Street, Maidenhead, SL6 7BE

WHEELBASE

5.0/5

Wheelbase are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute. In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. We cover Basingstoke and surrounding areas and offer courtesy cars as well as a free collection and delivery service.

24B Victoria Way, Burgess Hill, RH15 9NF

W G Friend & Son Ltd

4.0/5

W G Friend & Son Ltd

Units 8-10 Stowford Business Park, Ivybridge, Plymouth, PL21 0BE

Cavanfields Autocentre.

4.6/5

We have been established for over 18 years now, and are very proud of the excellent reputation that we have built up. We are proud to offer you a first class customer service and very competitive pricing, so please browse our stock list. At Cavanfields Uk Ltd we stock a range of used cars to suit all budgets and lifestyles so we are sure to have the right car for you.

Pennings Road, Tidworth, Salisbury, SP97SU

Campbells Garage

4.7/5

We are a 3rd generation family run business that has been trading for the last 25 years we do all major and minor garage repairs from tyres and exhausts to engine rebuilds. With over 110 years of combined experience between our 6 mechanics/technicians we are certainly one of the most experienced garages in the area. We offer dealer level services and diagnostics but at a fraction of the price giving you genuine value for money when you come to us. With all the latest diagnostic equipment and tuning tools, we can diagnose, service and repair 99% of all cars and light commercials no matter the model or make. we also offer specialty engine remapping services on a wide range of vehicles. For your convenience we can provide a courtesy car (due to availability) and also collection and delivery of your vehicle if you’re in the local area (up to about 5 miles) to make the process of having your vehicle repaired as easy and stress free as possible.

103 Redcar Road, Marske, Redcar, TS116HU

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.