Engine Overheating — Lexus NX
The engine temperature rises above normal operating range, potentially causing severe engine damage if not addressed promptly.
Severity: Critical | Repair Cost in India: ₹3,000 – ₹15,000 | Affected Years: 2018-2024 | Frequency: Common
What is the “Engine Overheating” problem?
The engine temperature rises above normal operating range, potentially causing severe engine damage if not addressed promptly.
Impact on driving: Can cause engine seizure and permanent damage
Issue Details at a Glance
- Severity
- Critical
- Impact
- Can cause engine seizure and permanent damage
- Estimated Repair Cost
- ₹3,000 – ₹15,000 (parts + labour, Indian workshops)
- Affected Years
- 2018-2024
- Frequency
- Common
Symptoms to Watch For
- Temperature gauge rising
- Steam from hood
- Coolant warning light
- Sweet smell from engine bay
- Loss of power
Likely Causes
- Low coolant level
- Faulty thermostat
- Damaged radiator
- Water pump failure
- Clogged coolant passages
Recommended Solutions
- Check and refill coolant
- Replace thermostat
- Repair or replace radiator
- Replace water pump
- Flush cooling system
Prevention Tips
- Regular coolant checks
- Flush coolant every 40,000 km
- Inspect hoses for leaks
- Check radiator fan operation
Should you worry about this issue?
This is a critical severity issue on the Lexus NX. Get it inspected immediately at an authorised service centre — driving with this fault can be unsafe and may lead to far costlier damage.