High Pressure Fuel Pump — Audi Q7
Category: Engine | Severity: high | Cost: ₹25,000–₹90,000
What is High Pressure Fuel Pump?
This pump supplies fuel at very high pressure to the injectors in modern direct injection engines.
How High Pressure Fuel Pump Works
Driven mechanically, it compresses fuel and delivers it to the fuel rail.
Why is High Pressure Fuel Pump Important?
Critical for direct injection performance and efficiency.
Common Problems
- Pressure loss
- Pump failure
- Noise
Symptoms
- Hard starting
- Power loss
- Engine stalling
Causes of Failure
- Contaminated fuel
- Wear
- Low lubrication
Impact on Car Performance
Failure leads to engine stalling and no-start condition.
DIY Fix Guide — Step by Step
- Check fuel quality
- Scan ECU codes
- Inspect fuel pressure
- Replace damaged pump
- Service regularly
Maintenance Tips
- Use clean fuel
- Replace fuel filter regularly
Replacement Cost in India
Estimated range: ₹25,000 – ₹90,000
Where to Buy Online
When to Replace High Pressure Fuel Pump
Replace when pressure drops or pump fails.