BMW 530E 2016–2021 — technical service bulletin

Bulletin B640821 · NHTSA communication 10204659 · issued Sep 1, 2021

Technical service bulletin

communication type

Electrical System

component

2016–2021

model years

vehicle entries

Official summary

The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38F to 60F +) without changing any climate control settings. In some cases the air conditioning may have stopped blowing cold air altogether.

Vehicles covered

2018 BMW 530E
2019 BMW 530E
2020 BMW 530E
2021 BMW 530E
2017 BMW 530I
2018 BMW 530I
2019 BMW 530I
2020 BMW 530I
2021 BMW 530I
2018 BMW 540D
2019 BMW 540D
2020 BMW 540D
2017 BMW 540I
2018 BMW 540I
2019 BMW 540I
2020 BMW 540I
2021 BMW 540I
2018 BMW 640I
2019 BMW 640I
2020 BMW 640I
2017 BMW 740E
2018 BMW 740E
2019 BMW 740E
2017 BMW 740I
2018 BMW 740I
2019 BMW 740I
2020 BMW 740I
2021 BMW 740I
2016 BMW 740LI
2017 BMW 740LI
2020 BMW 745E
2018 BMW 750I
2019 BMW 750I
2016 BMW 750LI
2017 BMW 750LI
2018 BMW 750LI
2019 BMW 750LI
2021 BMW 750LI
2020 BMW 840I
2021 BMW 840I
2018 BMW B7 Alpina
2019 BMW B7 Alpina
2020 BMW B7 Alpina
2021 BMW B7 Alpina
2018 BMW C 400 X
2017 BMW F800 R
2021 BMW F 850 GS Adventure
2018 BMW M5
2019 BMW M5
2020 BMW M5
2021 BMW M5
2017 BMW M550I
2018 BMW M550I
2019 BMW M550I
2020 BMW M550I
2021 BMW M550I
2017 BMW M760I
2018 BMW M760I
2019 BMW M760I
2020 BMW M760I

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.