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Best O2 Sensor Cleaner of 2026
Last updated on 03/04/2026
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1
Liqui Moly 4066 Air Flow Sensor Cleaner 200ml & 1803 Injection Cleaner 300ml
Liqui Moly
Why we love it
Fast and gentle cleaning.
Residue-free evaporation.
Effective for all engines.
Main Highlights
Product 1: Special active solvent for fast and gentle cleaning of sensitive components of the air flow sensor in gasoline and diesel engines
Product 1: The Cleaner also distinguishes itself by means of a very fast evaporation that is free of residues
Product 1: Removes contaminants at the hot wire or the hot plate of air flow sensors
Product 1: Suitable for use in gasoline and diesel engines
Product 2: Removes deposits on injection valves, intake valves, spark plugs and in the combustion chamber and prevents them from reforming. Eliminates start problems and rough engine running.
Product 2: For rectifying problems such as difficulties with starting, irregular idling, poor throttle response, performance losses, surges due to lean mixture and poor exhaust values caused by contaminated injection systems.
Product 2: One 300 ml can is sufficient for up to 70 liters of fuel. This product is effective over 2,000 km. Injection Cleaner can be mixed with fuel at any time since mixing is spontaneous.
Product 2: Repeat treatment if problems reoccur. Suitable for all gasoline injection systems.
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9.7
Exceptional
Check Price
9.7
Exceptional
Liqui Moly
Liqui Moly 4066 Air Flow Sensor Cleaner 200ml & 1803 Injection Cleaner 300ml
Check Price
Show More
Why we love it
Fast and gentle cleaning.
Residue-free evaporation.
Effective for all engines.
Main Highlights
Product 1: Special active solvent for fast and gentle cleaning of sensitive components of the air flow sensor in gasoline and diesel engines
Product 1: The Cleaner also distinguishes itself by means of a very fast evaporation that is free of residues
Product 1: Removes contaminants at the hot wire or the hot plate of air flow sensors
Product 1: Suitable for use in gasoline and diesel engines
Product 2: Removes deposits on injection valves, intake valves, spark plugs and in the combustion chamber and prevents them from reforming. Eliminates start problems and rough engine running.
Product 2: For rectifying problems such as difficulties with starting, irregular idling, poor throttle response, performance losses, surges due to lean mixture and poor exhaust values caused by contaminated injection systems.
Product 2: One 300 ml can is sufficient for up to 70 liters of fuel. This product is effective over 2,000 km. Injection Cleaner can be mixed with fuel at any time since mixing is spontaneous.
Product 2: Repeat treatment if problems reoccur. Suitable for all gasoline injection systems.
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Value for Money
2
Wynn's 25692 Catalytic Converter & Oxygen Sensor Cleaner 500ml, Black
Wynn's
Why we love it
Reduces harmful emissions significantly.
Prolongs catalytic converter life.
Prevents OBD warning light.
Main Highlights
Removes deposits (oil and unburnt fuel particles) and reduces emissions
Extends the life of the catalytic converter and oxygen sensors
Prevents the OBD warning light from illuminating
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9.5
Superb
Check Price
9.5
Superb
Wynn's
Wynn's 25692 Catalytic Converter & Oxygen Sensor Cleaner 500ml, Black
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Why we love it
Reduces harmful emissions significantly.
Prolongs catalytic converter life.
Prevents OBD warning light.
Main Highlights
Removes deposits (oil and unburnt fuel particles) and reduces emissions
Extends the life of the catalytic converter and oxygen sensors
Prevents the OBD warning light from illuminating
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3
Archoil AR2810 Mass Air Flow Sensor Cleaner MAF, MAP, Air Intake Plenum and EGR Cleaner, 500ml, Residue Free Multi Action Formulation for Fast Results & Zero Waste. Professional Nozzle Applicator
Archoil
Why we love it
Removes deposits fast and safely.
Cleans intakes and sensors.
Simple to use design.
Main Highlights
REMOVES DEPOSITS FAST. The AR2810 MAF mass airflow Sensor Cleaner contains a powerful, residue-free solution that safely and effectively removes deposits from Mass Air Flow and Mass Air Pressure sensors, restoring correct airflow metering.
CLEANS INTAKES AND SENSORS. The multipurpose formulation will also clean all intake system components such as the Intake Plenum and Exhaust Gas Recirculation Valve etc. Acts as a MAF sensor cleaner and then the intake system and EGR for zero waste.
SIMPLE TO USE. The revolutionary flip spray cap delivers a controlled flow of product, and the inverted valve ensures the contents can be sprayed whilst the can is inverted, for difficult to reach areas.
WILL NOT HARM WIRES, PLASTICS OR RUBBERS. AR2810 MAF cleaner sensor spray will not harm MAF sensor wires or associated materials such as plastics or rubbers.
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9.4
Superb
Check Price
9.4
Superb
Archoil
Archoil AR2810 Mass Air Flow Sensor Cleaner MAF, MAP, Air Intake Plenum and EGR Cleaner, 500ml, Residue Free Multi Action Formulation for Fast Results & Zero Waste. Professional Nozzle Applicator
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Show More
Why we love it
Removes deposits fast and safely.
Cleans intakes and sensors.
Simple to use design.
Main Highlights
REMOVES DEPOSITS FAST. The AR2810 MAF mass airflow Sensor Cleaner contains a powerful, residue-free solution that safely and effectively removes deposits from Mass Air Flow and Mass Air Pressure sensors, restoring correct airflow metering.
CLEANS INTAKES AND SENSORS. The multipurpose formulation will also clean all intake system components such as the Intake Plenum and Exhaust Gas Recirculation Valve etc. Acts as a MAF sensor cleaner and then the intake system and EGR for zero waste.
SIMPLE TO USE. The revolutionary flip spray cap delivers a controlled flow of product, and the inverted valve ensures the contents can be sprayed whilst the can is inverted, for difficult to reach areas.
WILL NOT HARM WIRES, PLASTICS OR RUBBERS. AR2810 MAF cleaner sensor spray will not harm MAF sensor wires or associated materials such as plastics or rubbers.
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4
Nitrox Catalytic Converter Petrol Cleaner, 500 ml
Nitrox
Why we love it
Boosts engine performance instantly.
Sails through emissions tests.
Easy pour-in fuel solution.
Main Highlights
RESTORE YOUR ENGINE: Breathe new life into your engine! This multi-purpose formula gets to work instantly, cleaning away harmful carbon and resin deposits from the entire engine, fuel and exhaust system, boosting MPG, and reducing harmful emissions from your car.
SAIL THROUGH EMISSIONS TESTS: Use just before your MOT to help you pass emissions tests
INSTANT EFFECT: Clean Cat's advanced formula cleans your system straight away
EASY USE: Pour straight into your fuel tank and let Clean Cat get to work
PERFORMANCE BOOST: Clean and restore your engine to its original performance
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9.3
Superb
Check Price
9.3
Superb
Nitrox
Nitrox Catalytic Converter Petrol Cleaner, 500 ml
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Why we love it
Boosts engine performance instantly.
Sails through emissions tests.
Easy pour-in fuel solution.
Main Highlights
RESTORE YOUR ENGINE: Breathe new life into your engine! This multi-purpose formula gets to work instantly, cleaning away harmful carbon and resin deposits from the entire engine, fuel and exhaust system, boosting MPG, and reducing harmful emissions from your car.
SAIL THROUGH EMISSIONS TESTS: Use just before your MOT to help you pass emissions tests
INSTANT EFFECT: Clean Cat's advanced formula cleans your system straight away
EASY USE: Pour straight into your fuel tank and let Clean Cat get to work
PERFORMANCE BOOST: Clean and restore your engine to its original performance
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5
Wynn's Turbo Cleaner - Safe for Diesel & Petrol Engines - Dissolves Carbon, Gum, Varnish & Tar - Restores Turbo Geometry & Air/Fuel Ratio - Compatible with DPF & EGR Systems - 200ml
Wynn's
Why we love it
No dismantling required for cleaning.
Effective foam for deep clean.
Restores turbo power quickly.
Main Highlights
✅ TURBOCHARGER GEOMETRY CLEANING WITHOUT DISMANTLING: Effectively cleans and unblocks dirty turbocharger geometry whether dismantling the unit or not. This powerful cleaning solution is designed to penetrate deep into the intricate components of the turbo system, ensuring complete and thorough cleaning even in hard-to-reach areas. The formula is engineered to act rapidly upon contact, starting the cleaning process immediately by loosening stubborn deposits and residues. It reaches internal surfaces of the turbo where gum, carbon, and varnish tend to accumulate, restoring the smooth functioning of variable geometry systems.
✅ ACTIVE FOAM FOR LASTING CLEANING ACTION: Upon spraying, the product generates a dense, active foam that adheres to the turbo’s surfaces, ensuring extended contact time for maximum cleaning efficiency. This foam clings to every curve and crevice within the turbocharger, allowing the advanced formula to dissolve and dislodge layers of built-up contaminants such as tar, oil residues, gum, and soot. The long-lasting action of the foam ensures that the active ingredients have enough time to break down even the toughest deposits without damaging sensitive components.
✅ RESTORES ORIGINAL TURBO PERFORMANCE: Formulated to dissolve harmful substances like gum, lacquer, tar, carbon, and varnish, this cleaner works to restore the turbocharger's power output to its original factory level. Contaminants in the turbocharger can severely restrict airflow, resulting in power loss and reduced engine efficiency. By removing these obstructions, the cleaner helps restore airflow dynamics and boosts the responsiveness of the turbo system. The engine regains its full torque potential, especially at lower RPMs, which is critical for both performance and fuel economy.
✅ OPTIMAL AIR/FUEL RATIO RECOVERY: Supports the recovery of the optimal air/fuel ratio by eliminating deposits that interfere with airflow regulation. The cleaner helps the turbo function as intended, providing the engine with the correct amount of compressed air needed for ideal combustion. This improves the air/fuel balance which is critical for engine performance, emissions reduction, and fuel efficiency. Whether for diesel or petrol engines, this function ensures that combustion remains clean and efficient, reducing exhaust smoke and enhancing throttle response.
✅ SAFE FOR EXHAUST GAS AFTER-TREATMENT SYSTEMS: Completely safe for use with all types of modern exhaust gas after-treatment systems, including diesel particulate filters (DPF), catalytic converters, and EGR valves. The formulation contains no aggressive components that could harm these sensitive systems, making it a suitable option for vehicles equipped with advanced emission control technologies. By not producing harmful residues or chemical reactions within the exhaust line, the cleaner preserves the integrity and function of all downstream components
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9.3
Superb
Check Price
9.3
Superb
Wynn's
Wynn's Turbo Cleaner - Safe for Diesel & Petrol Engines - Dissolves Carbon, Gum, Varnish & Tar - Restores Turbo Geometry & Air/Fuel Ratio - Compatible with DPF & EGR Systems - 200ml
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Show More
Why we love it
No dismantling required for cleaning.
Effective foam for deep clean.
Restores turbo power quickly.
Main Highlights
✅ TURBOCHARGER GEOMETRY CLEANING WITHOUT DISMANTLING: Effectively cleans and unblocks dirty turbocharger geometry whether dismantling the unit or not. This powerful cleaning solution is designed to penetrate deep into the intricate components of the turbo system, ensuring complete and thorough cleaning even in hard-to-reach areas. The formula is engineered to act rapidly upon contact, starting the cleaning process immediately by loosening stubborn deposits and residues. It reaches internal surfaces of the turbo where gum, carbon, and varnish tend to accumulate, restoring the smooth functioning of variable geometry systems.
✅ ACTIVE FOAM FOR LASTING CLEANING ACTION: Upon spraying, the product generates a dense, active foam that adheres to the turbo’s surfaces, ensuring extended contact time for maximum cleaning efficiency. This foam clings to every curve and crevice within the turbocharger, allowing the advanced formula to dissolve and dislodge layers of built-up contaminants such as tar, oil residues, gum, and soot. The long-lasting action of the foam ensures that the active ingredients have enough time to break down even the toughest deposits without damaging sensitive components.
✅ RESTORES ORIGINAL TURBO PERFORMANCE: Formulated to dissolve harmful substances like gum, lacquer, tar, carbon, and varnish, this cleaner works to restore the turbocharger's power output to its original factory level. Contaminants in the turbocharger can severely restrict airflow, resulting in power loss and reduced engine efficiency. By removing these obstructions, the cleaner helps restore airflow dynamics and boosts the responsiveness of the turbo system. The engine regains its full torque potential, especially at lower RPMs, which is critical for both performance and fuel economy.
✅ OPTIMAL AIR/FUEL RATIO RECOVERY: Supports the recovery of the optimal air/fuel ratio by eliminating deposits that interfere with airflow regulation. The cleaner helps the turbo function as intended, providing the engine with the correct amount of compressed air needed for ideal combustion. This improves the air/fuel balance which is critical for engine performance, emissions reduction, and fuel efficiency. Whether for diesel or petrol engines, this function ensures that combustion remains clean and efficient, reducing exhaust smoke and enhancing throttle response.
✅ SAFE FOR EXHAUST GAS AFTER-TREATMENT SYSTEMS: Completely safe for use with all types of modern exhaust gas after-treatment systems, including diesel particulate filters (DPF), catalytic converters, and EGR valves. The formulation contains no aggressive components that could harm these sensitive systems, making it a suitable option for vehicles equipped with advanced emission control technologies. By not producing harmful residues or chemical reactions within the exhaust line, the cleaner preserves the integrity and function of all downstream components
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6
VSGO 12 Pack Digital Camera Cleaning Swab Full Frame Sensor Cleaning Swabs with 10ml Sensor Cleaning Solution Dry CCD CMOS Clean Swab with Sensor Cleaner for Nikon Sony Canon DSLR Camera Clean
VSGO
Why we love it
Impressive cleaning and examining quality.
Remarkable sensor swab softness.
Comprehensive cleaning application scope.
Main Highlights
[Sensor Cleaning Swab Size]: 24mm (0.94in), Dry CCD CMOS Clean Swab.
[Special Softness Design]: VSGO sensor cleaning swab matching the ergonomic, is comfortable to use，protect your optical coating.
[Snug-fitting]: The front end is wrapped with lens cloth, which will not drop debris. Sensor cleaning swab is capable of snug-fitting when cleaning the sensor.
[Application Scope]: are able to clean sensitive sensors, optics lens, filters, LCD/plasma display, CCD/CMOS or other photosensitive parts, as well as the edge of palm computer & PDA, Mobile phone accessories etc.
[High-quality Products and Services]: We are committed to providing customers with high-quality products and services. If there are any problems, we will do our best to solve them for you.
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9.2
Superb
Check Price
9.2
Superb
VSGO
VSGO 12 Pack Digital Camera Cleaning Swab Full Frame Sensor Cleaning Swabs with 10ml Sensor Cleaning Solution Dry CCD CMOS Clean Swab with Sensor Cleaner for Nikon Sony Canon DSLR Camera Clean
Check Price
Show More
Why we love it
Impressive cleaning and examining quality.
Remarkable sensor swab softness.
Comprehensive cleaning application scope.
Main Highlights
[Sensor Cleaning Swab Size]: 24mm (0.94in), Dry CCD CMOS Clean Swab.
[Special Softness Design]: VSGO sensor cleaning swab matching the ergonomic, is comfortable to use，protect your optical coating.
[Snug-fitting]: The front end is wrapped with lens cloth, which will not drop debris. Sensor cleaning swab is capable of snug-fitting when cleaning the sensor.
[Application Scope]: are able to clean sensitive sensors, optics lens, filters, LCD/plasma display, CCD/CMOS or other photosensitive parts, as well as the edge of palm computer & PDA, Mobile phone accessories etc.
[High-quality Products and Services]: We are committed to providing customers with high-quality products and services. If there are any problems, we will do our best to solve them for you.
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7
Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 1L Treats 1,000L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (1Litre)
Archoil
Why we love it
Transforms diesel into Super Fuel.
Ensures maximum engine performance.
Resolves potential engine problems.
Main Highlights
EXCEPTIONAL HIGH-PERFORMING SUPER DIESEL FUEL. AR6900-D MAX converts low-quality supermarket diesel into high-performing Super Diesel Fuel using a carefully selected blend of pure 2-EHN cetane improver, multiple detergents, ester lubricant, stabiliser and combustion catalyst.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Diesel Fuel. 1L bottle treats up to 1,000L of fuel.
TRANSFORMS ALL DIESEL ENGINES GUARANTEED. Improved Cold Start, Eliminates Diesel Knock, Fuel System Cleaner, Fuel Injector Cleaner, Carbon Cleanr, DPF Cleaner, EGR Valve Cleaner, CAT Cleaner, Turbo Cleaner and Exhaust cleaner.
MAXIMUM ENGINE PERFORMANCE AND FUEL ECONOMY. This diesel additive maintains & improves engine pickup, performance and fuel economy. This diesel additive also lowers harmful exhaust emissions and exhaust particulates.
RESOLVES ENGINE PROBLEMS. Multiple detergents and post-combustion fuel-borne catalysts deliver a proprietary blend of Professional Grade Cleaning. Now you can reduce the chance of engine problems while enjoying a smoother and more responsive engine.
CLASS LEADING CETANE IMPROVER AND ESTER LUBRICANT using the highest purity 2-EHN and proprietary ester lubricant delivering below 290 on the HFRR scar wear test.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this diesel cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.
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9.2
Superb
Check Price
9.2
Superb
Archoil
Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 1L Treats 1,000L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (1Litre)
Check Price
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Why we love it
Transforms diesel into Super Fuel.
Ensures maximum engine performance.
Resolves potential engine problems.
Main Highlights
EXCEPTIONAL HIGH-PERFORMING SUPER DIESEL FUEL. AR6900-D MAX converts low-quality supermarket diesel into high-performing Super Diesel Fuel using a carefully selected blend of pure 2-EHN cetane improver, multiple detergents, ester lubricant, stabiliser and combustion catalyst.
HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Diesel Fuel. 1L bottle treats up to 1,000L of fuel.
TRANSFORMS ALL DIESEL ENGINES GUARANTEED. Improved Cold Start, Eliminates Diesel Knock, Fuel System Cleaner, Fuel Injector Cleaner, Carbon Cleanr, DPF Cleaner, EGR Valve Cleaner, CAT Cleaner, Turbo Cleaner and Exhaust cleaner.
MAXIMUM ENGINE PERFORMANCE AND FUEL ECONOMY. This diesel additive maintains & improves engine pickup, performance and fuel economy. This diesel additive also lowers harmful exhaust emissions and exhaust particulates.
RESOLVES ENGINE PROBLEMS. Multiple detergents and post-combustion fuel-borne catalysts deliver a proprietary blend of Professional Grade Cleaning. Now you can reduce the chance of engine problems while enjoying a smoother and more responsive engine.
CLASS LEADING CETANE IMPROVER AND ESTER LUBRICANT using the highest purity 2-EHN and proprietary ester lubricant delivering below 290 on the HFRR scar wear test.
CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this diesel cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.
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8
Triple QX 48304 0.3L OxyCat Power Clean 300ml Exhaust System Cleaner O2 Sensor
Triple QX
9.1
Superb
Check Price
9.1
Superb
Triple QX
Triple QX 48304 0.3L OxyCat Power Clean 300ml Exhaust System Cleaner O2 Sensor
Check Price
9
Wynn's Catalytic Converter & Lambda Sensor Cleaner - Optimises Efficiency, Reduces Emissions & Restores Engine Performance - Ideal for Petrol & Hybrid Engines - 325ml
Wynn's
Why we love it
Reduces emissions, improves efficiency.
Saves money on replacements.
Essential for city driving.
Main Highlights
✅ OPTIMISES THE EFFICIENCY OF THE CATALYTIC CONVERTER: Ensures the catalytic converter operates at peak performance by effectively removing carbon deposits and other contaminants that can accumulate over time. A clean catalytic converter improves overall engine efficiency, reducing harmful emissions and extending the lifespan of the vehicle’s exhaust system. Regular use helps maintain optimal exhaust flow, preventing blockages that could lead to costly repairs. Designed to restore lost performance in vehicles experiencing sluggish acceleration or increased fuel consumption. Enhancing the converter’s efficiency contributes to a cleaner, more environmentally friendly drive.
✅ ENSURES OPTIMAL WORKING OF THE LAMBDA (OXYGEN) SENSORS: Helps maintain the proper functioning of lambda sensors, which are crucial for adjusting the air-fuel mixture in petrol engines. A well-functioning oxygen sensor ensures efficient combustion, optimising engine performance while reducing excess fuel consumption. Prevents sensor contamination from soot and carbon deposits, allowing them to send accurate readings to the engine control unit. Keeping lambda sensors in top condition also helps maintain fuel efficiency and minimises the risk of increased emissions that could lead to MOT test failures.
✅ IMPROVES CLEANLINESS AND REDUCES EMISSIONS: Works by cleaning internal components of the exhaust system, including the catalytic converter and oxygen sensors, to reduce harmful emissions. Carbon buildup can cause excessive pollution, leading to higher emissions output and environmental impact. By removing deposits, the formula helps meet stricter emission regulations and supports a cleaner engine. Regular use prevents excessive carbon accumulation, ensuring compliance with emissions standards. Suitable for petrol and petrol hybrid engines, particularly beneficial for vehicles that frequently operate in city driving conditions where stop-and-go traffic increases carbon buildup.
✅ RESTORES ENGINE PERFORMANCE AND INCREASES FUEL ECONOMY: Helps regain lost power by improving the overall efficiency of the exhaust and fuel system. Carbon deposits and dirty sensors can lead to sluggish performance, poor acceleration, and increased fuel consumption. This treatment works by eliminating these inefficiencies, restoring optimal power output and fuel economy. By ensuring clean combustion and proper sensor operation, it supports a smoother drive with improved throttle response. Also helps extend the life of the engine and exhaust components, reducing the likelihood of expensive mechanical issues related to poor exhaust efficiency.
✅ EASY TO USE AND RECOMMENDED FOR REGULAR MAINTENANCE: Specifically formulated for petrol and petrol hybrid engines, making it ideal for routine engine care. Highly recommended for vehicles subjected to frequent urban driving, where stop-start conditions contribute to increased carbon build-up. Helps avoid costly catalytic converter replacements by keeping the system clean and functioning correctly. For best results, use before every MOT emissions test and drive at least 100 miles (160 km) before the inspection to maximise the cleaning effect.
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9.1
Superb
Check Price
9.1
Superb
Wynn's
Wynn's Catalytic Converter & Lambda Sensor Cleaner - Optimises Efficiency, Reduces Emissions & Restores Engine Performance - Ideal for Petrol & Hybrid Engines - 325ml
Check Price
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Why we love it
Reduces emissions, improves efficiency.
Saves money on replacements.
Essential for city driving.
Main Highlights
✅ OPTIMISES THE EFFICIENCY OF THE CATALYTIC CONVERTER: Ensures the catalytic converter operates at peak performance by effectively removing carbon deposits and other contaminants that can accumulate over time. A clean catalytic converter improves overall engine efficiency, reducing harmful emissions and extending the lifespan of the vehicle’s exhaust system. Regular use helps maintain optimal exhaust flow, preventing blockages that could lead to costly repairs. Designed to restore lost performance in vehicles experiencing sluggish acceleration or increased fuel consumption. Enhancing the converter’s efficiency contributes to a cleaner, more environmentally friendly drive.
✅ ENSURES OPTIMAL WORKING OF THE LAMBDA (OXYGEN) SENSORS: Helps maintain the proper functioning of lambda sensors, which are crucial for adjusting the air-fuel mixture in petrol engines. A well-functioning oxygen sensor ensures efficient combustion, optimising engine performance while reducing excess fuel consumption. Prevents sensor contamination from soot and carbon deposits, allowing them to send accurate readings to the engine control unit. Keeping lambda sensors in top condition also helps maintain fuel efficiency and minimises the risk of increased emissions that could lead to MOT test failures.
✅ IMPROVES CLEANLINESS AND REDUCES EMISSIONS: Works by cleaning internal components of the exhaust system, including the catalytic converter and oxygen sensors, to reduce harmful emissions. Carbon buildup can cause excessive pollution, leading to higher emissions output and environmental impact. By removing deposits, the formula helps meet stricter emission regulations and supports a cleaner engine. Regular use prevents excessive carbon accumulation, ensuring compliance with emissions standards. Suitable for petrol and petrol hybrid engines, particularly beneficial for vehicles that frequently operate in city driving conditions where stop-and-go traffic increases carbon buildup.
✅ RESTORES ENGINE PERFORMANCE AND INCREASES FUEL ECONOMY: Helps regain lost power by improving the overall efficiency of the exhaust and fuel system. Carbon deposits and dirty sensors can lead to sluggish performance, poor acceleration, and increased fuel consumption. This treatment works by eliminating these inefficiencies, restoring optimal power output and fuel economy. By ensuring clean combustion and proper sensor operation, it supports a smoother drive with improved throttle response. Also helps extend the life of the engine and exhaust components, reducing the likelihood of expensive mechanical issues related to poor exhaust efficiency.
✅ EASY TO USE AND RECOMMENDED FOR REGULAR MAINTENANCE: Specifically formulated for petrol and petrol hybrid engines, making it ideal for routine engine care. Highly recommended for vehicles subjected to frequent urban driving, where stop-start conditions contribute to increased carbon build-up. Helps avoid costly catalytic converter replacements by keeping the system clean and functioning correctly. For best results, use before every MOT emissions test and drive at least 100 miles (160 km) before the inspection to maximise the cleaning effect.
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10
LIQUI MOLY Air Flow Sensor Cleaner | 200 ml | Service spray | SKU: 4066
Liqui Moly
Why we love it
Fast and gentle cleaning.
Free of residues.
Suitable for all engines.
Main Highlights
Special active solvent for fast and gentle cleaning of sensitive components of the air flow sensor in gasoline and diesel engines
The Cleaner also distinguishes itself by means of a very fast evaporation that is free of residues
Removes contaminants at the hot wire or the hot plate of air flow sensors
Suitable for use in gasoline and diesel engines
Disconnect electrical connection of the air flow sensor and remove the sensor
Spray generously onto dirty components such as the hot wire or hot plate and allow the dirt to drip off
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8.9
Excellent
Check Price
8.9
Excellent
Liqui Moly
LIQUI MOLY Air Flow Sensor Cleaner | 200 ml | Service spray | SKU: 4066
Check Price
Show More
Why we love it
Fast and gentle cleaning.
Free of residues.
Suitable for all engines.
Main Highlights
Special active solvent for fast and gentle cleaning of sensitive components of the air flow sensor in gasoline and diesel engines
The Cleaner also distinguishes itself by means of a very fast evaporation that is free of residues
Removes contaminants at the hot wire or the hot plate of air flow sensors
Suitable for use in gasoline and diesel engines
Disconnect electrical connection of the air flow sensor and remove the sensor
Spray generously onto dirty components such as the hot wire or hot plate and allow the dirt to drip off
Show More
