The 1984 BMW 633 has 1 NHTSA recall campaign affecting an estimated 1,612 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 1 complaint with NHTSA, most often about the vehicle speed control. Last updated July 5, 2026.
THE POWER BRAKE BOOSTER MAY HAVE BEEN IMPROPERLY MACHINED CAUSING STRESS AND POSSIBLY CRACKS IN THE MASTER CYLINDER WHERE IT IS ATTACHED TO THE POWER BRAKE BOOSTER.
COMPONENTS WILL BE INSPECTED FOR IMPROPER MACHINING AND, IF FOUND, MASTER CYLINDER AND POWER BRAKE BOOSTER WILL BE REPLACED.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Idle valve failure, causing sudden acceleration. *sd”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1984 BMW 633 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.