The 2017 BMW 328D has 3 recalls, the most serious being a fire risk tied to the exhaust gas recirculation system, where the intake manifold can melt and potentially ignite.
The exhaust gas recirculation module, which routes hot exhaust gases back through the engine to reduce emissions, contains an integrated cooler that can allow the plastic intake manifold to overheat and melt. Once the manifold softens and breaks down, the risk of an engine fire follows. There is also a separate concern with the high-pressure fuel pump, which can fail without warning while the vehicle is in motion, cutting engine power and leaving the driver without the ability to accelerate or maintain speed, which raises the risk of a crash.