B37
BMW · B37 1.5 Diesel I3
2015–2020
"3-cylinder modular diesel. Shared architecture with B47/B57. Quiet for a 3-cyl. Limited production span. No major known issues — too few on road for long-term data. Timing chain is front-mounted (good)."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 1
DPF regeneration issues (city use)
▸DPF warning, limp mode
3-cylinder diesel + city driving = DPF clogging.
Αθήνα πόλη = DPF πρόβλημα. Εθνική τακτικά.
Related Guides
Other BMW Engines
Tuning Potential
140hp Stage 1
Frequently Asked Questions
Is the BMW B37 reliable?
The BMW B37 scores 75/100 with a verdict of ACCEPTABLE. It has 1 documented issues with total repair costs between €300 and €1,000.
What are the common problems with the B37?
The most common issues are:
- DPF regeneration issues (city use) — moderate, repair cost €300–€1,000, 60,000 km–120,000 km
How much does it cost to repair the B37?
Total potential repair costs for all 1 known issues range from €300 to €1,000. The most expensive issue is typically .
What years was the B37 produced?
The BMW B37 was produced from 2015 to 2020. It is a 1496cc I3 diesel 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.