B58
BMW · 3.0L Turbo I6
2015–present
"Possibly BMWs best engine ever. Forged internals, insane tuning (600hp+). 300k+ km."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 3
Coolant expansion tank / line failure — early units
▸Coolant warning light, puddle under car, steam
Early B58 (2015-2017) known coolant expansion tank issue. BMW updated part. Most replaced under warranty.
Ask if expansion tank was replaced. If not: €150-350. Verify coolant level at every service.
Plastic charge pipe crack
▸Boost loss, whistle, slight power reduction under load
Same as N55 but less frequent. Aluminium upgrade recommended if Stage 1+ tune.
Very cheap fix. Non-issue at stock power levels.
Valve cover gasket oil leak
▸Oil smell, light smoke from engine bay, oil deposits on top of engine
Less frequent than N55/N20 due to better materials. Eventually all age.
Low concern engine. Standard repair at Greek BMW workshops.
This report covers the combustion engine only. Battery and electric motor reliability are not included.
Models with B58 24
Other BMW Engines
Tuning Potential
600hp+ Stage 2 safe
Frequently Asked Questions
Is the BMW B58 reliable?
The BMW B58 scores 93/100 with a verdict of BEST. It has 3 documented issues with total repair costs between €430 and €1,000.
What are the common problems with the B58?
The most common issues are:
- Coolant expansion tank / line failure — early units — moderate, repair cost €150–€350, 60,000 km–120,000 km
- Plastic charge pipe crack — minor, repair cost €80–€200, 60,000 km–150,000 km
- Valve cover gasket oil leak — minor, repair cost €200–€450, 80,000 km–160,000 km
What cars use the BMW B58?
How much does it cost to repair the B58?
Total potential repair costs for all 3 known issues range from €430 to €1,000. The most expensive issue is typically .
What years was the B58 produced?
The BMW B58 was produced from 2015 to present. It is a 2998cc I6 petrol turbo engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.