L15B (pre-2019)
Honda · 1.5L VTEC Turbo I4
2015–2019
"Oil dilution in cold climates — fuel mixes with engine oil. Widespread in northern markets. Software update helps partially."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 3
Oil dilution — fuel in oil (cold/short trips)
▸Oil level rises, oil smells of fuel, poor fuel economy
Fuel condenses in oil on cold/short trips. 2016-2018 CR-V/Civic worst. Software update + extended warranty issued.
GREECE-SPECIFIC: Much less concern than Northern Europe due to warm climate. Athens never truly cold. Low risk for Greek buyers but check service history for oil dilution records.
Head gasket failures — 2018-2024 Accords
▸Coolant loss, overheating, milky oil
Active lawsuits. 2018-2024 Accord L15B most affected. 40k-90k mile range.
Check any Accord for coolant condition. Pre-purchase coolant test recommended.
Carbon buildup (DI)
▸Rough cold idle, hesitation
Standard DI issue.
Warm Greek climate reduces buildup. Clean at 80-100k km if symptoms.
Models with L15B (pre-2019) 4
Related Guides
Other Honda Engines
Tuning Potential
200hp Stage 1
Frequently Asked Questions
Is the Honda L15B (pre-2019) reliable?
The Honda L15B (pre-2019) scores 65/100 with a verdict of CAUTION. It has 3 documented issues with total repair costs between €2,300 and €6,600.
What are the common problems with the L15B (pre-2019)?
The most common issues are:
- Oil dilution — fuel in oil (cold/short trips) — high, repair cost €0–€2,000, 0 km–80,000 km
- Head gasket failures — 2018-2024 Accords — high, repair cost €2,000–€4,000, 40,000 km–90,000 km
- Carbon buildup (DI) — minor, repair cost €300–€600, 80,000 km–150,000 km
What cars use the Honda L15B (pre-2019)?
The L15B (pre-2019) is found in:
- Accord 1.5T (2017–2019)
- CR-V 1.5T (2017–2019)
- Civic 1.0 VTEC Turbo (2016–2019)
- Civic 1.5 VTEC Turbo (2015–2019)
How much does it cost to repair the L15B (pre-2019)?
Total potential repair costs for all 3 known issues range from €2,300 to €6,600. The most expensive issue is typically .
What years was the L15B (pre-2019) produced?
The Honda L15B (pre-2019) was produced from 2015 to 2019. It is a 1498cc I4 petrol turbo engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.