At a glance
What can fail
The exhaust gas recirculation cooler can develop internal cracks and leak coolant, causing warning lights, power loss, unusual exhaust smell, engine noise, or compartment smoke.
What the fix does
The EGR cooler will be replaced at a BMW dealership. The intake manifold will be inspected and replaced if needed.
Summarized — see the official notice for exact wording, dates, and contacts.