Coolant leaking from the low temperature cooling system (B58C engine)
BMW technical service bulletin B170220 for 2019-2020 BMW X5, 2019-2020 BMW X7 and 2020 BMW X6.
- Bulletin number
- B170220
- Component
- Engine and engine cooling
- Summary
- COOLANT LEAKING FROM THE LOW TEMPERATURE COOLING SYSTEM (B58C ENGINE): This Service Information Bulletin (Revision 1) replaces SI B17 02 20 dated March 2020. Premature breakdown of the coolant with gassing in the low temperature cooling system.
Owners of these vehicles have filed 146 complaints in the engine category.
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