Engine knocking sound under acceleration in 3 Series Long Wheelbase
Some users notice a knocking or pinging sound when accelerating hard.
Issue Details
- Severity
- high
- Impact
- Can damage engine if ignored.
- Estimated Repair Cost
- ₹5,000 – ₹70,000
- Affected Years
- 2019-2024
- Frequency
- Occasional
Symptoms
- Knocking sound
- Power loss
Causes
- Low-quality fuel
- Carbon buildup
Solutions
- Use premium fuel
- Engine cleaning
Prevention Tips
- Avoid low-grade fuel