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In partnership with AXA™ InsuranceThey 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.
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.
Save up to 30% on your spark plugs replacement in Liverpool. See our table below to browse our honest, upfront prices.
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.
Daniel, from London
Hey Fixter, how often should spark plugs need replacing?
Terry, Fixter in-house mechanic expert
Free collection and delivery — anywhere, anytime
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.
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.
Save up to 30% on your spark plugs replacement in Liverpool. See our table below to browse our honest, upfront prices.
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.
Daniel, from London
Hey Fixter, how often should spark plugs need replacing?
Terry, Fixter in-house mechanic expert
Free collection and delivery — anywhere, anytime
| Car make and model | Dealers average price | exclusive price | Instant savings |
|---|---|---|---|
 BMW 116d Se 2 litres | £92.25 | £76.30 | 17% |
 Audi A2 Tdi 1.4 litres | £93.67 | £75.60 | 19% |
 Dacia Sandero Stepway Laureate 0.9 litres | £92.55 | £76.30 | 18% |
 Fiat 500l 0.9 litres | £88.53 | £75.60 | 15% |
BMW 116i Se A 1.6 litres | £86.88 | £72.10 | 17% |
BMW 116 I Es 1.6 litres | £87.01 | £70.00 | 20% |
Audi A1 Sport Tfsi 1.4 litres | £87.17 | £70.70 | 19% |
 Citroen C4 Lx 1.4 litres | £83.82 | £71.40 | 15% |
BMW 116i Se 1.6 litres | £84.98 | £70.70 | 17% |
Fiat 500l Mpw 1.3 litres | £84.68 | £71.40 | 16% |
Dacia Sandero Stepway Laureate 0.9 litres | £92.55 | £76.30 | 18% |
BMW 116i Se A 1.6 litres | £86.88 | £72.10 | 17% |
Audi A1 Sport Tfsi 1.4 litres | £87.17 | £70.70 | 19% |
Citroen C4 Lx 1.4 litres | £83.82 | £71.40 | 15% |
BMW 116i Se 1.6 litres | £84.98 | £70.70 | 17% |
* The cost of your spark plugs replacement depends on your car make and model and may vary depending on your location.
Anthony from Huddersfield
This is the second time I have used this brilliant service and it was flawless again. I booked the collection for 8am the driver was there for 7:55am I asked for the car back before 4pm it was as back for 2pm. This service is perfect for busy people like myself. Well worth the 5 star rating I have g...
Nikos from Manchester
I was very skeptical initially with the service I was going to be provided by Fixter. Nevertheless it is very convenient that they come and get your car from any place and date. So I booked for a major service on the date and place I wanted. On that day, a guy came with his folded bike (10mins late)...
Jason from Altrincham
I thought it made the mot and service ball ache a lot better, I got to stay at home and the friendly chap came and took my car off for work. You get kept informed all the way through the process. I will be using fixter next time
Calnette from Manchester
I booked in for a major service and MOT. They were very efficient. They picked up my car, serviced it well and returned it well in time. Thank you guys so much
Angela from Salford
Excellent! Recommend to everyone.. great prices and great job done! Thank you!
Raja
Very good service will be using it agen
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.
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.
What do spark plugs do?How often should spark plugs need replacing?What happens when we replace your spark plugs?What causes spark plugs to stop working correctly?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.
Most manufacturers recommend that spark plugs should be replaced at around every 30k miles; this is only a guideline, as the quality of the component, engine performance and driving habits can affect spark plug lifespan significantly.
Old or damaged spark plugs can affect engine performance areas that cause an MOT failure, for example, in emissions testing. Poor performing spark plugs or filters that clog up can affect the gasses that are delivered from your exhaust; replacing these faulty parts can often rectify the problem.
Spark plugs can wear out over time, at which point they should be replaced to ensure the correct combustion of fuel. There is also a chance of potential carbon build up on the electrodes; this is known as carbon fouling and will affect the correct operation of the spark plugs. Oil can build up on the spark plugs too, which can be rectified with a simple cleaning.
Spark plugs can occasionally melt due to excessive engine temperatures. This isn’t usually a spark plug fault, but that of the engine or fuel system.
If your car struggles or fails to start, it could be down to faulty spark plugs.
If your engine cuts out after starting or during its usual operation, if it fails to run smoothly or it vibrates excessively under normal use, then your spark plugs could be due to worn out spark plugs.
Any dashboard warning light is due to a sensor detecting fault or incorrect operation of a related component. An engine warning light could relate to a faulty spark plug.
Faulty spark plugs can cause your engine to burn fuel in an erratic manner, affecting both vehicle performance and fuel consumption. If you notice a change in your fuel consumption, it could be a spark plug problem.
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