Mass Airflow Sensor (MAF) — Audi Q3 Sportback
Category: Engine | Severity: medium | Cost: ₹5,000–₹20,000
What is Mass Airflow Sensor (MAF)?
Measures amount of air entering engine.
How Mass Airflow Sensor (MAF) Works
Sends airflow data to ECU for fuel adjustment.
Why is Mass Airflow Sensor (MAF) Important?
Ensures correct air-fuel mixture.
Common Problems
- Sensor contamination
- Failure
Symptoms
- Check engine light
- Poor mileage
- Rough idle
Causes of Failure
- Dust
- Oil contamination
Impact on Car Performance
Incorrect fueling reduces performance.
DIY Fix Guide — Step by Step
- Scan ECU codes
- Remove sensor
- Clean with MAF cleaner
- Reinstall properly
- Replace if faulty
Maintenance Tips
- Keep air filter clean
Replacement Cost in India
Estimated range: ₹5,000 – ₹20,000
Where to Buy Online
When to Replace Mass Airflow Sensor (MAF)
Replace when faulty readings occur.