Suzuki knock sensor replacement, 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
 
 
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 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.

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

Want to learn more about Suzuki knock sensor replacement?

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.

Suzuki

The Suzuki Motor Corporation is a Japanese multinational automotive and motorcycle manufacturer, established in 1909, over 100 years ago.

Possibly better known as a leading motorcycle manufacturer, the cars from this marque are becoming a well-known household name in UK motoring. The Suzuki Swift and Suzuki Vitara have made a real impact on UK drivers, being responsible for over half of the 408k Suzuki models on the roads today.

Good value small city cars and SUV driving

Suzuki’s success has been dependent on their provision of small, well-priced cars that offer excellent value and good fuel economy. They offer a selection of city cars and small hatchbacks, with added hybrid fuel options for green drivers and those who want further economy from their motoring.

It’s possibly the Vitara, Ignis and the SX4 S-Cross SUV and crossover models that are making the most impact for this brand, despite not achieving quite the same impressive sales figures as the Swift.

Suzuki provides great technology for budget brand cars

For cars at their price-point, Suzuki crams in a lot of tech. The Vitara, for example, comes with Suzuki’s Boosterjet turbocharged engine and Allgrip 4-wheel drive system for performance, and a host of additional technology for drivability.

It also incorporates driver assistance features such as a lane departure warning that includes visual signals and a vibrating steering wheel, cruise control and fully integrated smartphone connectivity—features you’d tend to expect to find on much higher priced vehicles.

The Suzuki SHVS hybrid system

In the current climate where ecology and green motoring has become prevalent, the ‘Smart Hybrid Vehicle by Suzuki’ advanced driving system reduces CO2 emissions and lowers your running costs. What Suzuki has done here, is create a lighter and smaller system than the standard hybrid arrangement. Combine that with their cars’ lightweight chassis and nimble performance, and the efficiency becomes even more impressive.

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