knock sensor replacement in Swansea, made easy

Hassle-free MOT, Service and Car Repair

Double line
We collect
We fix
And we return your car
Fixie
Part of Renault
Part of Renault

Trusted by 50,000+ people

350+
Partner Garages Nationwide
100,000
Bookings completed
2500+
5 Star TrustPilot reviews
 
 
Mascot

We have

your back...

We find and vet the top rated garages so you don't have to.

We negotiate the best prices on your behalf.

Fair prices based on real time market data.

Save time with our car collection and delivery.

All work is guaranteed for 12 months.

Our reviews

Takes a lot of stress away

I would definitely recommend this company: knowing someone was keeping an eye on everything to make sure I wasn't being overcharged for parts and labour takes a lot of stress out of having the work done. I felt really well looked after. Thank you Fixter.

Kathleen Hodge, West Yorkshire

Excellent service

Excellent service. On time to pick up my car & drop it back. Full service cost £179, main dealer quoted me £700-lots different!

Muhammad, Birmingham

Total game-changer!

Just had my MOT done through Fixter for the first time. It took about 5 minutes of my time in total to book, hand over the key, and get it back when the car was returned. So I was able to carry on looking after my 2 year old. Total game-changer!

Oliver Woodford, London

No need to drive to a garage

Can't get more convenient than someone turning up, taking the car from the house for its MOT and returning it a few hours later. No having to drive to a garage (often miles from anywhere or in the middle of an industrial estate) or hanging around waiting.

Darren, Pontefract

I literally cannot fault them

This is the 3rd time I have used Fixter and I recommend to everyone. It makes getting an MOT super easy for me. Everyone I speak to on the phone is incredibly helpful and polite, and they seem to be the most cost effective. I literally cannot fault them.

Julia M, Bristol

Our expert insights into knock sensor replacement

What does a knock sensor do?

The knock sensor is bolted directly onto the outside of the engine block and is used to detect vibrations and detonation “knock” noises from the engine to prevent engine damage.

What are the symptoms of a bad knock sensor?

Below are the top three symptoms that could indicate you need to replace your knock sensor:

  • Engine pre-detonation known as “pinking” or knocking

  • Reduced engine power

  • Increased fuel consumption

What happens when we do a knock sensor replacement on your car?

Our certified mechanics will:

  • Perform a diagnostic check to discover any fault codes coming from the knock sensor and other related parts of the engine.

  • Once they confirm that the knock sensor is faulty, they will fit a replacement knock sensor.

  • Once replaced, the mechanic will start the engine and recheck for fault codes.

Daniel, from LondonDaniel, from London

Hey Fixter, what causes a knock sensor to break?

Knock sensors can fail due to incorrect mounting, corrosion, breaks in wiring or mechanical damage. Knock sensors are quite fragile, therefore you should take proper care of it to maintain its life for longer.

Collection and delivery - anywhere

How Fixter works

Simply book online and we'll handle the rest

How fixter works

How Fixter works

55 secs
First accordion item imageBook now, pay later

Upfront, fair pricing, with free collection & return and no hidden costs. Our in-house experts will then choose the ideal garage to work on your car.

Accordion item 2 imageWe drive your car to the best garage

A fully-insured Fixter driver will pick up your car, whenever and wherever works for you. (If you’d prefer to drive your car to the garage yourself, that’s not a problem!).

Accordion item 3 imageWe return your car the same day

Our in-house experts will keep you updated, and your card is only charged once all work has been satisfactorily completed and approved by our team. Your driver will then drop the car back when it’s convenient for you.

Want to learn more about knock sensor replacement in Swansea?

Swansea

Swansea, located on the south coast of Wales, is a bustling city known for its industrial heritage and stunning coastline. With a population of approximately 250,000, it is the second most populous city in Wales.

When it comes to car ownership in Swansea, the data collected reveals some interesting insights. The Ford Fiesta takes the top spot as the most popular car in the city, favored by Swansea residents for its reliability and fuel efficiency. Following closely behind are the Volkswagen Golf, Vauxhall Corsa, Nissan Qashqai, and the BMW 3 Series.

In addition to these popular choices, Swansea residents also show a preference for electric and hybrid vehicles, reflecting the city's commitment to sustainability and reducing carbon emissions.

Vehicle numbers in Swansea

Swansea boasts a significant number of licensed vehicles, with approximately 180,000 cars registered in the city. This high number reflects the city's reliance on private transportation and the need for efficient and reliable car maintenance services.

Postcodes and suburbs in Swansea

Swansea is divided into several postcodes and suburbs, each with its own unique charm. Some notable areas include SA1 (City Centre, Maritime Quarter, and Port Tennant), SA2 (Sketty, Uplands, and Tycoch), SA3 (Mumbles, Langland, and Bishopston), and SA5 (Gorseinon, Penllergaer, and Loughor). These diverse neighborhoods contribute to the vibrant automotive landscape of Swansea.

As a car maintenance platform catering to the needs of Swansea residents, we understand the importance of providing top-notch services to keep their beloved vehicles in optimal condition. Whether it's regular servicing, tire replacements, or body repairs, our platform connects car owners with trusted professionals who are well-versed in the specific requirements of Swansea's automotive landscape.

With our extensive network of garages and mechanics, Swansea residents can rest assured that their cars will receive the highest quality care, ensuring safe and reliable transportation throughout the city and beyond.

What does a knock sensor do?

The knock sensor is located on the outside of the engine block. Its job is to record knocking noise from the engine in order to prevent engine damage.

The knock sensor "listens out for" vibrations from the engine block and converts these into electrical signals. The signals are filtered and evaluated in the engine’s control unit. If the vibrations are determined to be outside of the predefined ‘normal’ limits, the engine management control unit will alter the ignition timing until it returns to within the correct limits.

How often should a knock sensor need replacing?

Replacing a knock sensor is not part of routine car maintenance so should only need to be fixed when it breaks or begins to fail. On most modern vehicles, the knock sensor should last over 150,000 miles or the lifetime of the vehicle.

The law, vehicle regulations and your MOT

A fault with the knock sensor will often illuminate the Engine Management Light in your car. Your vehicle will fail its MOT if your Engine Management Light remains on when the engine has been started. Under the new MOT rules, it is now classed as a major fault so will need to be fixed before a mechanic can pass your car. Therefore it’s crucial that you keep an eye out for engine warning lights and have your car inspected by one of our vetted mechanics when necessary.

What happens when we do a knock sensor replacement on your car?

Our certified mechanics will:

  • Perform a diagnostic check to discover any fault codes coming from the knock sensor and other related parts of the engine.

  • Once they confirm that the knock sensor is faulty, they will fit a replacement knock sensor.

  • Once replaced, the mechanic will start the engine and recheck for fault codes.

When should a knock sensor be replaced?

You should have your knock sensor looked at as soon as you notice any of the related symptoms, such as an illuminated engine warning light, reduced engine power or poor fuel economy. Because your knock sensor plays a vital role in preventing engine damage and in the safe and efficient running of your car, it’s very important to have it fixed as soon as possible.

What are the signs of a bad knock sensor?

Usually, there a few signs you can look for:

  • Engine pre-detonation known as “pinking” or knocking

  • Engine warning light comes on

  • Reduced engine power

  • Increased fuel consumption

How often should you replace your knock sensor?

Replacing a knock sensor is not part of routine car maintenance so should only need to be fixed when it breaks or begins to fail. On most modern vehicles, the knock sensor should last over 150,000 miles or the lifetime of the vehicle.

What happens during a knock sensor replacement?

During the repair our certified mechanics will:

  • Perform a diagnostic check to discover any fault codes coming from the knock sensor and other related parts of the engine.

  • Once they confirm that the knock sensor is faulty, they will fit a replacement knock sensor.

  • Once replaced, the mechanic will start the engine and recheck for fault codes.

What is the average life of a knock sensor?

On most modern vehicles, the knock sensor should last over 150,000 miles or the lifetime of the vehicle.

Can you drive with a broken knock sensor?

You should not drive with a bad knock sensor. If you continue to drive with a failing sensor, serious damage could be done to your engine, causing an expensive repair or replacement. As well as this a bad knock sensor will greatly reduce your cars power and fuel economy. To save yourself time and money down the line we recommend refraining from driving and getting the issue fixed as soon as possible.

Need a hand understanding your car needs?

Our in-house experts know cars, our garages and our drivers inside out.

As featured in

The times
Bloomberg
Honestjohn