Service bulletins for the 2020 BMW X4
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
250 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Body and frame are shown. Show all
| B011219 | 2020-11-16. Service bulletin. STRUCTURE:FRAME AND MEMBERS. FRONT GRILLE UPPER/LOWER ACTIVE AIR FLAPS: LTD WTY EXT TO 15 YEARS/150,000 MILES: Component-Specific Limited Warranty Extension This component-specific limited warranty extension applies to defects in materials or workmanship. This coverage is subject to the same vehicle eligibility requirements, limitations, and exclusions that apply to the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Air flap issues caused by debris/blockage from outside influences is not a defect in materials or workmanship and is not claimable. During the extended limited warranty coverage period (Eligible vehicles that are beyond the 4 year/50,000 mileage New Vehicle Limited Warranty coverage), Active Air Flap cosmetic defect issues are not covered. |
|---|---|
| B512119 | 2020-10-19. Service bulletin. STRUCTURE. ACTIVE AIR FLAP FAULT DIAGNOSIS AND REPAIR: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated. |
| B541119 | 2019-10-21. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE. SUNROOF WATER LEAK DIAGNOSIS: This bulletin outlines multiple known areas of possible water entry for the vehicles listed above. It serves only as a diagnostic resource in troubleshooting water leak complaints from the roof area. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.