Add silicone booster to low temp cooling system
BMW technical service bulletin B170120 for 2019-2020 BMW X5, 2019-2020 BMW X7 and 2020 BMW X6.
- Bulletin number
- B170120
- Component
- Engine and engine cooling
- Summary
- SERVICE ACTION: ADD SILICONE BOOSTER TO LOW TEMP COOLING SYSTEM: The coolant in the low temperature cooling system may not have sufficient coolant corrosion protection. AFFECTED VEHICLES Vehicles which require this Service Action to be completed will show it as "Open" when checked either in AIR the "Service Menu" of DCSnet (Dealer Communication System) or with ISPA NEXT.
Owners of these vehicles have filed 146 complaints in the engine category.
Vehicles covered
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