COOLANT LEVEL CHECK AND TOP-OFF AT SECOND OIL SERVICE: A new, additional coolant level check task is now...
BMW technical service bulletin B170420 for 2017-2020 BMW 530I, 2016-2019 BMW 750LI and 2017-2020 BMW 540I and others.
- Bulletin number
- B170420
- Component
- Engine and engine cooling
- Summary
- COOLANT LEVEL CHECK AND TOP-OFF AT SECOND OIL SERVICE: A new, additional coolant level check task is now linked to the second engine oil service (Service Counter 2 only). The scope of maintenance work will display in ISPA Next that applies to the high-temperature circuit. This new coolant check only pertains to the above listed models with gasoline engines. During the normal operation of the vehicle, there is a certain amount of coolant absorption by the various components/gaskets/seals contained within the coolant systems. Over time, the coolant absorption can cause the coolant level to fall below the maximum fill level in the reservoir. In some cases, the level may even fall low enough to cause the high-temperature circuit low coolant level warning light to illuminate, along with displaying the corresponding Check Control message.
Owners of these vehicles have filed 43 complaints in the engine category.
Vehicles covered
- BMW 530I 2017-2020 2017201820192020
- BMW 750LI 2016-2019 2016201720182019
- BMW 540I 2017-2020 2017201820192020
- BMW 750I 2018-2019 20182019
- BMW 740I 2017-2020 2017201820192020
- BMW 530E 2018-2020 201820192020
- BMW 740LI 2016-2017 20162017
- BMW M550I 2017-2020 2017201820192020
- BMW 640I 2018-2020 201820192020
- BMW 840I 2020 2020
- BMW 540D 2018-2020 201820192020
- BMW 740E 2017-2019 201720182019
- BMW M850I 2019-2020 20192020
- BMW M760I 2017-2020 2017201820192020
- BMW F800 R 2017 2017
- BMW B7 Alpina 2018-2020 201820192020
- BMW 745E 2020 2020
- BMW M8 Gran Coupe 2020 2020
VIN decoder
See the problems and recalls for an exact car
Buying a used BMW 530I?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history