Check a VIN

July 10, 2026 Emissions

Due to an implementation error in various OBD diagnostics in the vehicle's control units, in very rare...

BMW technical service bulletin B120326 for 2023-2026 BMW X5, 2023-2026 BMW X3 and 2023-2026 BMW X1 and others.

Bulletin number
B120326 (0099020300)
Component
Engine
Summary
Due to an implementation error in various OBD diagnostics in the vehicle's control units, in very rare cases itmay happen that stored fault memory codes (DTCs) and the MIL (warning light) are not automaticallydeleted even though the underlying malfunction has already been rectified. This does not comply with the statutory OBD specifications.

Owners of these vehicles have filed 61 complaints in the engine category.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used BMW X5?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history