Brake Booster (Vacuum) — Nissan Gravite
Category: Brakes | Severity: high | Cost: ₹6,000–₹18,000
What is Brake Booster (Vacuum)?
Brake booster amplifies the force applied on the brake pedal using engine vacuum, reducing driver effort.
How Brake Booster (Vacuum) Works
A vacuum diaphragm multiplies pedal force and assists the master cylinder in generating hydraulic pressure.
Why is Brake Booster (Vacuum) Important?
Ensures effortless braking and improved control.
Common Problems
- Vacuum leak
- Hard pedal
- Diaphragm failure
Symptoms
- Hard brake pedal
- Increased stopping effort
- Hissing noise
Causes of Failure
- Vacuum hose leak
- Internal diaphragm damage
Impact on Car Performance
Failure increases braking effort significantly, reducing responsiveness.
DIY Fix Guide — Step by Step
- Check vacuum hose
- Listen for leaks
- Test pedal stiffness
- Replace if faulty
Maintenance Tips
- Inspect vacuum lines
- Check during service
Replacement Cost in India
Estimated range: ₹6,000 – ₹18,000
Where to Buy Online
When to Replace Brake Booster (Vacuum)
Replace when pedal becomes hard or vacuum leak occurs.