# Service bulletin B640220

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10177631
- Published by NHTSA: 2020\-07\-27
- Manufacturer's number: B640220
- Manufacturer's date: 2020\-06\-01
- NHTSA component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; SEATS

## NHTSA's summary

3rd ROW CLIMATE CONTROL NOT AVAILABLE: Climate control operations are not available in the 3rd row when the 3rd row seats are folded down. Software in the automatic air conditioning control unit \(IHKA\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177631-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177631-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Glass, wipers and mirrors, Heating and air conditioning, Seats

## Vehicles listed

- 2019 to 2020 BMW X7

## Recalls for the same vehicles and component

- [2022501](/recalls/tc/2022501.md), 2022-09-07: Seats And Restraints
- [22V670000](/recalls/nhtsa/22V670000.md), 2022-09-07: SEATS
- [22V267000](/recalls/nhtsa/22V267000.md), 2022-04-20: VISIBILITY:SUN/MOON ROOF ASSEMBLY
- [2021078](/recalls/tc/2021078.md), 2021-02-18: Visual System
- [2019480](/recalls/tc/2019480.md), 2019-10-01: Visual System
- [19V135000](/recalls/nhtsa/19V135000.md), 2019-02-27: SEATS

## Other bulletins for the same vehicles and component

- [B630418](/bulletins/11020927.md), 2025-07-28, Service bulletin: VISIBILITY/WIPER. One or more of the LED daytime running lights are dim or discolored.
- [B520920](/bulletins/11012089.md), 2024-12-31, Service bulletin: SEATS. HEAD RESTRAINT AND/OR BACKREST OF 3RD ROW SEATS CANNOT BE FOLDED DOWN
- [B521019](/bulletins/10252279.md), 2024-04-01, Service bulletin: SEATS. The seat leather upholstery detaches from the front of the thigh support \(aka knee bolster\) of either front seat.
- [B510819](/bulletins/10249437.md), 2024-02-01, Service bulletin: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. The basic conditions for initializing the power windows are not met.
- [B522319](/bulletins/10246302.md), 2023-12-06, Service bulletin: SEATS. Two areas of the third\-row seat backrest that may cause a noise concern have been added.
- [B522319](/bulletins/10244258.md), 2023-11-01, Service bulletin: SEATS. Second seat row blocking access to third seat row, program seat modules. Visible stitching on first row sport seat. Third seat row backrest Bowden cable routing and length change.
- [B520920](/bulletins/10244257.md), 2023-11-01, Service bulletin: SEATS. Various concerns about the third row of seats: 1. Head restraint \(aka headrest\), on one or both sides, cannot be folded down. 2. Third\-row seating, on one or both sides, cannot be folded down.
- [B540421](/bulletins/10244239.md), 2023-11-01, Service bulletin: VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE. This situation can result in two customer complaints: 1. Wind noise 2. Excess water entry
- [B540123](/bulletins/10242696.md), 2023-09-25, Service bulletin: STRUCTURE; VISIBILITY:SUN/MOON ROOF ASSEMBLY. ?Water leaking into the vehicle from the headliner/microphone area.
- [B520920](/bulletins/10242695.md), 2023-09-25, Service bulletin: SEATS. ?Various concerns about the third row of seats.

JSON: [/v1/bulletins/10177631](/v1/bulletins/10177631)

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