What Are Common BMW B57 Engine Problems?
The BMW B57 engine , first released in 2015, is a well-known 3.0-litre straight-six turbo-diesel that’s found in a wide range of BMWs. You’ll see it in models like the 5 Series (G30/G31), 7 Series (G11/G12), and X5 (G05), as well as newer SUVs like the X6 (G06) and X7 (G07). One of the most common versions, the B57D30A, is popular for good reason—it offers strong performance, a smooth driving experience, and solid fuel efficiency. However, even significant engines have their flaws. Being aware of the common issues with the B57 can help you catch problems early and keep your BMW running at its best. Common Issues with the BMW B57 Engine 1. EGR Cooler Leaks (Exhaust Gas Recirculation) One of the most prevalent problems with the B57 engine is a faulty exhaust gas recirculation (EGR) cooler leak. As it begins to malfunction, the coolant can seep into the intake system, causing white exhaust smoke, rough idling, or in the worst-case scenario, serious engine damage. The problem became so pre...