1 Check if cleaning makes sense
Error codes and poor throttle response do not prove the MAF is dirty. First inspect the air filter, intake hoses, and electrical connector, because a crack after the sensor gives similar symptoms.
? Tip: A dirty or inappropriate oil-soaked sport filter is a common cause of deposits on the MAF sensor.
2 Turn off the vehicle and locate the sensor
Remove the key and wait for the engine to cool. The MAF is usually located in the intake pipe right behind the filter housing; photograph its orientation before removal.
3 Disconnect and carefully remove the sensor
Release the lock on the electrical connector without pulling the wires, unscrew the screws, and pull the sensor straight out. Do not touch the thin wire, film, or probe inside the housing.
4 Rinse with a dedicated cleaner
Holding the sensor over a clean surface, spray the measuring element with several short bursts according to the spray instructions. Do not use a brush, cloth, compressed air, brake cleaner, or carburetor cleaner.
⚠ Warning: The measuring element is extremely sensitive. Physical contact or the wrong solvent can permanently destroy the sensor.
5 Dry and reinstall the sensor
Allow the sensor to dry completely naturally, then reinstall it in the same direction and connect the plug. Start the vehicle and monitor its operation; a persistent code requires diagnostics, not another spraying.