Mass Airflow Sensor for Audi A4 — Price, Symptoms & Replacement Guide
Category: Engine | Failure Severity: Medium | Replacement Cost in India: ₹7,000–₹25,000
What is the Mass Airflow Sensor?
MAF sensor measures the amount of air entering the engine.
How the Mass Airflow Sensor Works
Sends airflow data to ECU to adjust fuel injection.
Why the Mass Airflow Sensor is Important
Ensures proper air-fuel ratio.
Common Problems with the Mass Airflow Sensor
- Sensor failure
- Dirty sensor
Warning Symptoms of a Failing Mass Airflow Sensor
- Check engine light
- Poor mileage
- Engine hesitation
Common Causes of Mass Airflow Sensor Failure
- Dust contamination
- Electrical faults
Impact on Car Performance
Incorrect readings reduce efficiency and power.
DIY Fix Guide — Step by Step
- Clean sensor using MAF cleaner
- Check wiring
- Scan ECU
Maintenance Tips
- Keep air filter clean
Mass Airflow Sensor Replacement Cost in India
Expect to pay between ₹7,000 and ₹25,000 for genuine parts plus labour at an authorised Audi workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Mass Airflow Sensor Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Mass Airflow Sensor listings.
When to Replace the Mass Airflow Sensor
Replace if sensor fails or gives incorrect readings.