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June 27, 2026 Service bulletin

Customer may feel something transmitted via the steering column while turning the steering wheel

BMW technical service bulletin B640426 for 2023 BMW 530I.

Bulletin number
B640426
Component
Engine
Summary
Customer may feel something transmitted via the steering column while turning the steering wheel. There may also be coolant lost accompanied by a check control message: ‘Top up coolant’.

Owners of these vehicles have filed 2 complaints in the engine category.

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