Mass Airflow Sensor (MAF) — Audi Q3

Category: Engine | Severity: medium | Cost: ₹5,000–₹20,000

What is Mass Airflow Sensor (MAF)?

MAF sensor measures air entering the engine.

How Mass Airflow Sensor (MAF) Works

Sends airflow data to ECU for fuel calculation.

Why is Mass Airflow Sensor (MAF) Important?

Ensures proper air-fuel ratio.

Common Problems

Sensor contamination
Failure

Symptoms

Poor mileage
Check engine light
Rough idle

Causes of Failure

Dust
Oil contamination

Impact on Car Performance

Incorrect fuel mixture reduces efficiency.

DIY Fix Guide — Step by Step

Clean MAF sensor
Check ECU codes

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 cleaning doesn't fix issue.