About this part
What it does. Pronto Air Filter Pronto 455-PA99871K keeps dust and debris out of the intake so the engine draws clean air.
Symptoms that point to this part
- Reduced fuel economy
- Sluggish acceleration
- Visibly dirty or clogged filter element
Service note. Typically inspected at every service and replaced roughly annually.
Fitment. Catalogued as fitting 2026 BMW M4, 2024 BMW M2. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.