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Hassle-free spark plugs replacement

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spark plugs replacement
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up to 30% cheaper than average

Manufacturer-equivalent

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Our expert insights into spark plugs replacement

Our expert insights into spark plugs replacement

What do spark plugs do?

They convert electric current from the ignition coil into a spark that ignites the fuel and air mix inside the car engine. This combustion is what powers the engine and moves the car.

Symptoms of malfunctioning spark plugs

If your car struggles or fails to start, or if your engine cuts out after starting or during its usual operation, or if it fails to run smoothly or it vibrates excessively under normal use it could be down to faulty spark plugs.

View more symptomsView more symptoms

How much does it cost to change my spark plugs?

Save up to 30% on your spark plugs replacement. See our table below to browse our honest, upfront prices.

What happens when we replace your spark plugs?

Our mechanics will check for possible fault codes relating to the ignition system or the spark plugs themselves. Wherever required your spark plugs will be replaced.


Learn more

Daniel, from London

Hey Fixter, how often should spark plugs need replacing?

Daniel
Terry

Terry, Fixter in-house mechanic expert

checkedCollection and delivery — anywhere

What do spark plugs do?

They convert electric current from the ignition coil into a spark that ignites the fuel and air mix inside the car engine. This combustion is what powers the engine and moves the car.

Symptoms of malfunctioning spark plugs

If your car struggles or fails to start, or if your engine cuts out after starting or during its usual operation, or if it fails to run smoothly or it vibrates excessively under normal use it could be down to faulty spark plugs.

View more symptomsView more symptoms

How much does it cost to change my spark plugs?

Save up to 30% on your spark plugs replacement. See our table below to browse our honest, upfront prices.

What happens when we replace your spark plugs?

Our mechanics will check for possible fault codes relating to the ignition system or the spark plugs themselves. Wherever required your spark plugs will be replaced.


Learn more

Daniel, from London

Hey Fixter, how often should spark plugs need replacing?

Daniel
Terry

Terry, Fixter in-house mechanic expert

checkedCollection and delivery — anywhere

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COVID-19 Update - Tuesday, 1 December 2020

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How much does spark plugs replacement cost?

How much does spark plugs replacement cost?

Honest, upfront quotes and savings up to 30%

A typical spark plugs replacement in the UK costs around £76.48 - £82.92. Depending on your car brand, model and engine, and whether you live in a big city or a small one, the price of a spark plugs replacement on your vehicle can be higher or lower. We have computed prices for some of the best-selling cars in the UK in order to give you an idea of how much the spark plugs replacement should cost.

Car make and modelDealers
average price
Fixter logoexclusive price
Instant savings

Volkswagen Polo-hatch

1.4 litres

£94.84 £79.7016%

Toyota Prius

1.6 litres

£91.77 £76.4817%

Volkswagen Polo-hatch

1.2 litres

£95.64 £79.7017%

Suzuki Wagon-r-plus

1.6 litres

£94.67 £78.8917%

Skoda Octavia

1.4 litres

£101.16 £82.9218%

Vauxhall Astra-h

1.4 litres

£95.83 £77.2819%

Peugeot 309

1.6 litres

£95.83 £77.2819%

Toyota Aygo

1 litres

£93.51 £77.2817%

Kia Pride

1.6 litres

£99.36 £82.1117%

Vauxhall Viva

1.6 litres

£100.82 £81.3119%

Volkswagen Polo-hatch

1.4 litres

£94.84 £79.7016%

Skoda Octavia

1.4 litres

£101.16 £82.9218%

Peugeot 309

1.6 litres

£95.83 £77.2819%

Toyota Prius

1.6 litres

£91.77 £76.4817%

Suzuki Wagon-r-plus

1.6 litres

£94.67 £78.8917%
Get your free quote and save up to 30%Get an instant quote

* The cost of your spark plugs replacement depends on your car make and model and may vary depending on your location.

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Your spark plugs replacement is in safe hands with our top-rated mechanics

We personally select every local garage based on our unique 25-point criteria, which includes staff qualifications, equipment standards and customer ratings.

Fully qualified mechanics with 10+ years’ experience 👨‍🔧

Your car is in the UK’s safest expert hands.

Manufacturer-equivalent parts only ⚙️

Identical to your manufacturer’s, but much cheaper!

In-house experts approve all work personally 🔍

Every service carried out by our partner garages is fully reviewed.

12-month warranty on parts and labour 🛠

Any additional work needed will be carried out for free.

Get an instant quote

Your spark plugs replacement is in safe hands with our top-rated mechanics

mechanics

We personally select every local garage based on our unique 25-point criteria, which includes staff qualifications, equipment standards and customer ratings.

Fully qualified mechanics with 10+ years’ experience 👨‍🔧

Your car is in the UK’s safest expert hands.

Manufacturer-equivalent parts only ⚙️

Identical to your manufacturer’s, but much cheaper!

In-house experts approve all work personally 🔍

Every service carried out by our partner garages is fully reviewed.

12-month warranty on parts and labour 🛠

Any additional work needed will be carried out for free.

Get an instant quote

Want to learn more about spark plugs replacement?

Want to learn more about spark plugs replacement?

What do spark plugs do?

Spark plugs convert electric current from the ignition coil into a spark that ignites the fuel and air mix inside the car engine. This combustion is what powers the engine and moves the car. Spark plugs are located in the cylinder head and are connected via external leads attached to the engine.

What are the symptoms of bad spark plugs?

The main symptoms of faulty or worn-out spark plugs will manifest in engine performance. You could have problems starting the car, keeping it running, or even running smoothly. You might even notice some vibrations from the engine as it misfires.

With any engine issue, your check engine light should illuminate on your dashboard.

How often do you need to change spark plugs?

There is a rule of thumb that suggest spark plugs should be changed anywhere between 20,000 and 30,000 miles. There are long-life spark plugs that can take you well over 100,000 miles, so always be sure to check which you're running and your vehicle manufacturer's guidelines.

What is the use of spark plugs?

Your spark plugs ignite the petrol and air mixture in your engine's combustion chamber, creating the power you need to move the pistons and propel your car. The spark itself is an arc of electricity jumping across the gap between the plug's electrodes.

What spark plugs do I need for my car?

Spark plugs come in 3 main varieties: copper, platinum, and Iridium. The correct option for your engine is outlined in your owner's manual. If you haven't got the manual, then you can ask your mechanic or use an online checking tool that matches the correct plugs to your vehicle's registration number.

What happens if you don't replace spark plugs?

Over time your spark plugs deteriorate. This is due to a build-up of carbon or the reduction in metal on the electrodes. It's hardly a surprise, given they continuously spark around 1,000 times every minute.

This deterioration will result in a lack of performance. You may notice that your car is unstable when idling, its acceleration isn't as responsive, it runs less smoothly, and you may even notice a reduction in fuel economy.

How long can you drive with bad spark plugs?

It depends how bad they are; whatever state they're in, it's a far better option to get them replaced as soon as possible. If a spark plug, or selection of plugs, isn't working correctly, you could be sending unburned fuel to your catalytic converter. Your CC should burn the fuel off; yet get very hot in the process. A burned-out catalytic converter is an expensive component to replace. That's only one possible outcome—there are many more equally serious and costly eventualities.

Should I replace all spark plugs at once?

Ideally, yes. All of your plugs need to operate in the same manner; that means fitting the same brand and type of plugs, and in the same condition. That means fitting them at the same time, so they wear at the same rate.

Another good reason for a full switch is that the labour cost is often far greater than the price of the parts. Given that your spark plugs will each have the same lifespan, it's likely that they'll start to fail at roughly the same time. By replacing them all in one go, you're limiting the chances of having to pay the same labour charges each time you need a single new plug.

Does replacing spark plugs improve performance?

It depends on the condition of the spark plugs. If they're at the end of their life, or have deteriorated enough to cause noticeable issues to how your engine runs, then you'll see a full restoration back to your car's efficient, healthy running.

Can you change spark plugs without changing the wires?

Just like the plugs themselves, the wires or cables that deliver the electricity to your spark plugs wear out over time. While replacing them at the same time as your plugs is advisable, it's not always necessary.

Your wires can be tested by measuring electrical resistance. We'd suggest checking with your mechanic if your cables are ready for replacement or not.

We cover all makes and models — anywhere in the UK

We cover all makes and models — anywhere in the UK

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