2021 BMW Kidney Grill Active Air Flap Faults

BMW has released a manufacturer communication, TSB NHTSA ID 10181225, concerning BMW Kidney Grill Active Air Flap Faults that may affect several 2021 models. This bulletin informs technicians about potential issues with the active air flap system located in the kidney grille, leading to dashboard warnings.

Symptoms

Owners of affected 2021 BMW vehicles may notice one or both of the following indicators:

• An illuminated Malfunction Indicator Lamp (MIL) on the instrument cluster.
• A "check control message" displayed, specifically related to "KIDNEY GRILL ACTIVE AIR FLAP FAULTS".

These warnings indicate a potential malfunction within the active air flap system, which plays a role in engine cooling and aerodynamic efficiency.

What is the Kidney Grill Active Air Flap?

Modern BMW vehicles often incorporate active air flaps behind the iconic kidney grille. These flaps automatically open and close to regulate airflow to the engine compartment. When the engine needs more cooling, the flaps open. When less cooling is required, or for improved aerodynamics and faster engine warm-up, the flaps close. A fault in this system can impact engine performance, fuel efficiency, and potentially lead to overheating if not addressed.

What to Do If You Experience This

If your 2021 BMW displays a check control message related to BMW Kidney Grill Active Air Flap Faults or has an illuminated MIL, it is recommended to schedule an appointment with an authorized BMW service center. The TSB, NHTSA ID 10181225, provides guidance to technicians on diagnosing and resolving this specific issue. Since this is a manufacturer communication, the repair may be covered under warranty, depending on your vehicle's specific warranty terms and mileage.

Source: NHTSA ID 10181225