Oxygen Sensor for BMW M5 — Price, Symptoms & Replacement Guide

Category: Engine | Failure Severity: Medium | Replacement Cost in India: ₹5,000–₹20,000

What is the Oxygen Sensor?

The oxygen sensor monitors oxygen levels in exhaust gases.

How the Oxygen Sensor Works

It sends data to ECU to adjust air-fuel ratio.

Why the Oxygen Sensor is Important

Ensures efficient combustion and emission control.

Common Problems with the Oxygen Sensor

Sensor failure
Contamination

Warning Symptoms of a Failing Oxygen Sensor

Poor mileage
Check engine light

Common Causes of Oxygen Sensor Failure

Carbon buildup
Aging

Impact on Car Performance

Incorrect readings reduce efficiency.

DIY Fix Guide — Step by Step

Scan error codes

Maintenance Tips

Use quality fuel

Oxygen Sensor Replacement Cost in India

Expect to pay between ₹5,000 and ₹20,000 for genuine parts plus labour at an authorised BMW workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.

Where to Buy Oxygen Sensor Online

Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Oxygen Sensor listings.

When to Replace the Oxygen Sensor

Replace every 80,000–100,000 km.