NHTSA recall 18V755000

What's wrong: Affects vehicles equipped with an exhaust gas recirculation (egr) module with an integrated cooler. If the egr cooler leaks internally, the coolant can mix with diesel engine soot. The high egr temperatures may result in these particles possibly smoldering and melting the intake manifold.

Why it matters: The melting intake manifold can increase the risk of a fire.

The fix: Bmw will notify owners, and dealers will inspect and replace the egr cooler as necessary. If a leak has already occurred, the engine intake manifold will also be replaced. These repairs will be made free of charge. The recall began May 13, 2019.