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September 20, 2023 Service bulletin

The engine malfunction warning is illuminated and one or more of the following faults are stored in...

BMW technical service bulletin B120623 for 2021-2024 BMW X5, 2021-2024 BMW X7 and 2021-2024 BMW X6.

Bulletin number
B120623
Component
Engine and engine cooling
Summary
The engine malfunction warning is illuminated and one or more of the following faults are stored in theDME: 034D63 - Exhaust switchable cam follower, system: continuous deactivation, maximum number of switchingerrors exceeded 035601 - Exhaust switchable cam follower 1, electrical: cable break 035604 - Exhaust switchable cam follower 2, electrical: cable break 034BBF - Exhaust switchable cam follower, system: switching errors

Owners of these vehicles have filed 86 complaints in the engine category.

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