Engine knocking sound under acceleration in M4 CS — BMW M4 CS
A knocking or pinging sound is heard when accelerating hard.
Severity: High | Repair Cost in India: ₹5,000 – ₹80,000 | Affected Years: 2022-2025 | Frequency: Occasional
What is the “Engine knocking sound under acceleration in M4 CS” problem?
A knocking or pinging sound is heard when accelerating hard.
Impact on driving: Can damage engine components.
Issue Details at a Glance
- Severity
- High
- Impact
- Can damage engine components.
- Estimated Repair Cost
- ₹5,000 – ₹80,000 (parts + labour, Indian workshops)
- Affected Years
- 2022-2025
- Frequency
- Occasional
Symptoms to Watch For
- Knocking noise
- Loss of power
Likely Causes
- Low-quality fuel
- Incorrect ignition timing
Recommended Solutions
- Use premium fuel
- Engine tuning
Prevention Tips
- Always use recommended fuel
Should you worry about this issue?
This is a high severity issue on the BMW M4 CS. Get it inspected immediately at an authorised service centre — driving with this fault can be unsafe and may lead to far costlier damage.