-
Maintenance parts
- System clean glass
-
Brake
- Brake rear
- Front brake
-
Filters
- Air Filter
- Oil Filter
-
Body
- Trim/ Protection/ Decorative Strips/ Emblems
-
Body Parts/ Wing/ Bumper
- Mudguard
- Floor Panel
- Side Panel
- Wing/ Parts
- Bumper/ Parts
- Front Fairing/ Grille
- Rear-End Cowling
- Support Frame / Engine Carrier
- Non-side opening elements
- Engine compartment bulkhead
- Front and rear unit
- Exterior trims / Spoiler
- Exterior trims / Spoiler
- Exterior trims / Spoiler
- Exterior trims / Spoiler
- Clips
- Windows/ Mirrors
-
Hatches/Bonnets/Doors/Sunroof/Folding Roof
- Doors/ Parts
- Boot-/Cargo Area Flap/-Lid
- Convertible Top/Parts
- Tools
- Bodyshell
- Bodyshell
-
Engine
- Engine Timing Control
-
Gaskets
- Gasket Set, complete
-
Lubrication
- Oil Filter
-
Oil Pan/ Parts
- Wet Sump
-
Oil Pump/ Parts
- Oil Pump
-
Cylinder Head/ Parts
- Cylinder Head Cover/-Gasket
-
Engine Air Supply
- Air Filter/ Housing
- Intake Manifold
-
Crankcase
- Crankcase
-
Crankshaft Drive
-
Crankshaft
- Main Bearings, crankshaft
- Crankshaft
-
Piston Assembly
- Piston
-
Crankshaft
-
Engine Mountings
- Fasteners
-
Complete Engine/ Sub-Assembly
- Complete Engine
-
Exhaust System
- Manifold
- Exhaust system
-
Filters
- Oil Filter
- Air Filter
-
Brake System
- Brake Master Cylinder
- Handbrake
- Brake Pipes
-
Drum Brake
- Brake Drum
- Mechanical brake pump
- Brake servo
- Braking system compensator
-
Cooling System
-
Water Pump/ Gasket
- Water Pump
- Radiator/ Oil Cooler
- Radiator Fan
- Rehating - Oil or fuel cooling
-
Water Pump/ Gasket
-
Spark/ Glow Ignition
- Ignition Distributor/ Parts
- Ignition Coil/Ignition Coil Unit
- Starter switch
-
Electrics
- Alternator/- Parts
- Battery
-
Lights
-
Licence Plate Light/-Parts
- Licence Plate Light
-
Side-/Outline Lamp/-Parts
- Outline Light
-
Interior Lights
- Light, passenger compartment
- Side lights
- Side lights
- Bulbs - Fuses
- Side lights
-
Licence Plate Light/-Parts
- Headlight/ Parts
- Air/Electric Horn
-
Instruments
- Gauges
-
Starter System
- Starter
- Relay
- Sensors
- Harness
- Switches
- Switches
-
Suspension
- Shock Absorber
-
Steering
- Steering Gear/ Pump
- Control/Regulation
- Steering Wheel/Parts
-
Axle Mounting/ Steering/ Wheels
- Wheel Hub / Mounting
-
Stabiliser/Fastening Parts
- Stabilizer
- Axle Support / Axle Beam / -Mounting
-
Windscreen Cleaning System
- Wiper Blade/-Rubber
- Water Tank/ Pipe, windscreen
-
Clutch/ Parts
- Clutch Disc
-
Clutch Control
- Clutch Pedal
- Fuel Supply System
-
Transmission
-
Manual Transmission
- Transmission
- Manual speeds
- Manual speeds
-
Automatic Transmission
- Transmission Housing / Parts
- Transmission Control / Hydraulics
-
Transmission
- Automatic gearbox
- Automatic gearbox casings
- Automatic gearbox casings
- Automatic gearbox casings
- Automatic gearbox casings
- Automatic gearbox control
- Automatic gearbox control
- Automatic gearbox control
- Automatic gearbox control
- Automatic gearbox control
- Automatic gearbox gears
- Automatic gearbox gears
- Automatic gearbox gears
- Gearbox seals
- Automatic speeds
- Gear selector fork
- Gear selector fork
- Gearbox casings
- Gearbox gears
- Gearbox gears
- Gearbox gears
-
Manual Transmission
- Heater
-
Air Conditioning
- Compressor / Parts
- Controls/ Regulation
- Air conditioning
- Air conditioning
- Air conditioning
-
Fuel Mixture Formation
-
Mixture Formation
- Injection Pump
- Accelerator Pedal
- Fuel Injection Pump/High Pressure Pump
- Fuel injection
- Fuel injection
- Carburettor System
- Antipollution
- Antipollution
- Antipollution
- Antipollution
- Antipollution
- Antipollution
-
Mixture Formation
- Information/ Communication Systems
-
Interior Equipment
- Seats
- Accessories
- Ashtray
- Floor Mats
- Glove Compartment
- Sun Visor
- Panelling
- Dashboard
-
Axle Drive
- Differential
-
Propshaft
- Propshaft
-
Locking System
- Lock Set
- Lock Barrel/ Set
- Wheels/Tyres
Air filter for Renault R21 R21
Air Filter: Importance, Functionality, and Maintenance
The air filter is a critical component of your car's engine, ensuring clean air intake for optimal combustion and performance. Explore OEM air filters in our catalog.
Importance of Air Filters
The air filter is responsible for filtering out dust, dirt, and contaminants from the air before it enters the engine. This ensures that the engine receives clean air for optimal combustion and performance.
How Air Filters Work
As your engine runs, it requires a constant supply of air for combustion. The air drawn in from the environment contains contaminants that can damage engine components if not removed. The air filter acts as a barrier, trapping contaminants and allowing clean air to flow into the engine.
Structure of Air Filters
Air filters are typically made of pleated paper or synthetic filter media housed in a plastic or metal frame. The filter media traps contaminants as air passes through it, while the frame provides structural support and ensures a proper seal.
Maintaining Your Air Filter
Regular air filter changes are essential for maintaining your engine's health and performance. Over time, the filter media becomes clogged with contaminants, restricting airflow and reducing engine efficiency. Follow the manufacturer's recommended air filter change intervals to ensure optimal engine performance and longevity.
By investing in regular air filter changes, you can ensure that your engine receives clean air and operates at peak efficiency, improving fuel economy, reducing emissions, and extending the life of your engine.