SIB 52 23 19
SEATS IN THE G05, G06, G07

2022-02-17

This Service Information Bulletin (Revision 10) replaces TRI B52 23 19 dated October 2021.
This bulletin is information only, no claim information intended.
What’s New (Specific text highlighted):
This Service Bulletin B52 23 19 replaces TRI B52 23 19
Additional detail has been added for when the 2nd row seat is stuck in the folded position

MODEL
E-Series

Model Description

Production Date

G05
G06
G07

X5 Sports Activity Vehicle
X6 Sports Activity Vehicle
X7 Sports Activity Vehicle

From Start of Production (SoP)

INFORMATION
Refer to attachment B52 23 19.

Supporting Materials
picture_as_pdf B52 23 19_REV10.pdf
picture_as_pdf B52 23 19 Seat Guide.pdf

Copyright ©2022 BMW of North America, Inc.

Service Information Bulletin
Seats

February 17, 2022
B52 23 19

SEATS IN THE G05, G06, G07
This Service Information Bulletin (Revision 10) replaces TRI B52 23 19 dated October 2021.
This bulletin is information only, no claim information intended.
What’s New (Specific text highlighted):
• This Service Bulletin B52 23 19 replaces TRI B52 23 19
• Additional detail has been added for when the 2nd row seat is stuck in the folded position

MODEL
E-Series

Model Description

Production Date

G05
G06
G07

X5 Sports Activity Vehicle
X6 Sports Activity Vehicle
X7 Sports Activity Vehicle

From Start of Production (SoP)

INFORMATION
With the launch of the G05 (X5) Sports Activity Vehicle in August 2018, a new style of networked
seats was introduced that have new operating parameters. This service information bulletin details the
operation of the new style seats.
The biggest change is that the vehicle’s 3 rows of seats will all communicate with one another, so that
a problem with one seat can affect the operation of the other 2 rows of seats. This is done to ensure
two seats cannot interfere with one another during operation.
The button controls also differ, in that there is a time delay between pushing the button(s) and when
the seat responds. If a customer doesn’t know about this small delay, they may push the same button
a second time which will cancel the operation, leading to customer inquiries.
For details on each of the features shown below, please refer to ISTA or AIR and read through the
Functional Description (FUB) documents.
Seat information can also be found on TIS in the training reference manuals:
• G05 Complete Vehicle - ST1831
• G07 Complete Vehicle - ST1832
The seat initialization procedure can be found in ISTA by choosing
• SERVICE FUNCTIONS
• BODY
• SEATS
• SEAT ADJUSTMENT STANDARDIZATION
Then select the correct ABL test plan for the relevant seat.
When a seat is not initialized, some seemingly unrelated functions such as seat heating may be
disabled.
To manually move a seat and see status requests, select the seat you want to initialize from the
vehicle test screen (Control Unit Tree):
• SMFA - Seat Module Driver
• SMBF - Seat Module Passenger
• SMFAH - Seat Module Driver Rear

•

SMBFH - Seat Module Passenger Rear

Highlight the correct seat module and then select 'Call up ECU Functions'.
Then select 'Seat Adjustment'.
First Row Seats, Second Row Seats with Executive - Captain’s Seats
Possible Adjustments of the Seat

The first row seat and the second row seat
executive/captain’s seats function similarly.

Forward / Back adjustment motor

NOTES:
The flexible shafts that connect the seat rail to
the motors are available separately part number
52 10 7 454 056
The seat rails are equipped with a mechanical
end stop.

•
•
•

Upper Backrest adjustment motor

Lower Backrest adjustment motor

Seat Angle Adjustment

When replacing a seat rail this end
stop must be transferred to the new
rail.
Failure to install these end stops will
prevent the seat from initializing.
End stop part number 52 10 7 469 879

Head Restraint adjustment motor

Backrest width / Lumbar adjustment
motor(s)

Cooling Fan motors

The fan motors in these vehicles work differently
than previous models. The fans work to draw
heat away from the body rather than blow hot air
onto the body.

Drivers seat mounted switch block

Drivers door mounted switch block

Drivers door mounted window switch block

The window lock switch (13) is on the driver’s
door switch block.

Window lock switch

•

Always confirm this is turned off when
diagnosing seat operation concerns

•

If the LED is lit on the switch then the
lock is turned on

•

The lock may not turn off if the driver’s
door is open

This lockout switch affects multiple systems in
the vehicle. If the LED is turned on, it will lock out
the following:
•

Window Controls

•

Power sun shades (if equipped)

•

Sunroof Controls (3rd row only)

•

**Seat Controls (2nd and 3rd row) on side
of seat and C pillar mounted controls
** NOTE: Vehicles with I-Level
S18A-20-07-500 or higher no longer lock
the controls of the 2nd and 3rd row seats.

2nd Row Lift / Tilt adjustment

2nd Row Captains Seat only
This lever moves the seat forward and lifts/tilts to
allow easy access to the 3rd row seats.
•

If you hold it up, then let it go, it will return
to its original position

•

Or, you can pull back on the entire seat
manually until you hear the seat click and

it will finish returning to its original
position
•

Captains Seat will move forward but
doesn’t fold flat

The M6 bolt that mounts the second-row seat
armrests is available separately. Part number 52
20 9872574.

2nd Row Lift - Tilt adjustment cam

When the lever controlling the Bowden cable for
the tilt adjustment is not applied, the microswitch
is depressed by the cam.

2nd Row Lift - Tilt adjustment cam

When the lever controlling the Bowden cable for
the tilt adjustment is applied, the microswitch is
no longer actuated by the cam.

J Safety Hooks

The second row seats have a safety interlock
when they are in the normal seating position.
This “J hook” interlock is there in case of an
accident.
The seats can slide forward or rearward when in
the normal seating position, but they cannot lift
upwards until they slide forward on the seat rail.
If the seat is properly initialized, it will not cause
interference between the J hooks. However if a
seat is not initialized, it is possible to move the
seat forward, raise it, then slide it backwards.
This can force the J hooks to interfere.
Do not operate seats unless they are initialized.
For more details see the video
• B52 01 19 - G05-G07 Seat
Troubleshooting 6 Passenger

Second Row Comfort / Bench Seats (40-20-40 Split seats, aka 60/40 seat)
Seat overview

Electric motor locations

1.

Cupholder

2.

Release for head restraint tilt

3.

Release for electrically folding the backrest

4.

Button for electric easy entry function

5.

ISOFIX mount

6.

Button for electric seat adjustment

7.

Safety belt height adjustment

1. Electric Motors for adjusting, folding down
and raising up the backrest
2. Electric Motors for Forward / Back Adjustment
3. Electric Motors for Comfort Entry

Microswitch Locations

Harness Routing near folding seatback
Drivers side 60% seat

The wiring harness can be damaged if routed
incorrectly at the folding seatback (recliner). The
pictures shows the factory routing.
The white plastic plate at the top of each photo is
for pinch protection and must be installed as per
the picture (the color of the plate may vary).

Passenger side 40% seat

Pinch protection plate

Lift - Fold adjustment

This button is located on the ‘shoulder’ of the 2nd
row seat and folds the seat down or lifts it back
up.

Easy Access to 3rd row

2nd row seat mounted switch block

This button is located on the side of the 2nd row
seat and it allows easy access to the 3rd row
seats.

These controls are identical on the side of the
bench or captain seats.
On a bench seat, the middle section moves with
the driver seat
1
2
3

Cupholder - Armrest

Resets the 2nd row seat to its default position
Seat Forward - Backward
Seatback Forward - Backward

The armrest of the 60/40 seat can be folded
down to access the cupholders.
The armrest position is not monitored.

Center 20% Seat section

The center section (20%) of the seat can be
folded down independently of the driver’s 2nd row
seat by pulling on the release (circled).
The center section (20%) is a monitored status.
If this is folded down, it can influence the front
seat backrest position if the vehicle thinks there
will be interference between the seats.

Center 20% Seat section mounting pin

The middle section of the seat is retained by a
pin (circled) on the drivers 2nd row seat.
• This pin folds down - retracts into the
seat once the middle section is folded

Passenger 40% Seat Trim Inteference

G05 vehicles ONLY - The inner seat trim can
contact the seat rail when returning from the
easy entry position. Modified trim was introduced
into production December 2020.
On G05 vehicles produced prior to 12/2020
where the seat trim contacts the seat rail, the
trim can be modified with either a small belt
sander or file.
See TIS Noise Catalogue video V520121.mp4
Trim Interference Noise.

Cam Interlock on latch

At the seat bottom latch there is an interlock cam
(circled) that turns to actuate a microswitch when
the seat is unlatched and tilted forward.
This picture shows the cam that is attached to
the seat latch assembly.
• This cam is moved when it contacts the
tab mounted on the seat rail

Cam Interlock on rail

The matched section of the cam interlock is
located on the seat rail. This tab (shown raised)
contacts the interlock when the seat is lowered
to its normal seating position.
The spring lock beveled star washer (circled; P/N
52 20 5A37D37) must keep contact on the
spring, or the tab can move out of position
damaging the cam interlock.
For more details see the video
• B52 02 19 - G05-G07 Seat
Troubleshooting 7 Passenger

Cam interlock Microswitch

Here is the microswitch location (circled) for the
cam interlock.
Replacement microswitch with plastic cap for the
60/40 seat is P/N 52 20 5A37D34.

Crash lock Spring correct

On the side of the seat at the pivot there is a
crash lock spring.
• This spring keeps the latch spring loaded
so it won’t release in case of an accident
The spring is shown in the correct position.

Crash lock Spring incorrect

Here the spring is out of its correct position.

not OK

Seat Manual Release 1

The seat can be manually released in case of
electrical failure to access the third row seats.
• This is located at the outer pivot point on
each side of the 2nd row seat.

Seat Manual Release 2

The seat release (red) is for the third row
passenger to actuate, enabling exiting the
vehicle in case of electrical failure.

REPLACEMENT SEAT COMES IN SHIPPING
POSITION #1 / SEAT STUCK IN FOLDED
POSITION
The second-row seat is shipped in a folded-flat
position. When in this shipping position, the
manual releases detailed above will not work.
The manual release will only allow the seat to
fold. To unfold the seat it must be either
electrically (#1) or mechanically(#2) turned at the
backrest pivot.
Reference the attachment to SI B52 05 20 and
power the seat backrest motor directly with a drill
battery and connector (V cable 612 160) to
open/unfold the backrest. Once the backrest has
been powered open, the manual release cables
will then allow the backrest to fold.
REPLACEMENT SEAT COMES IN SHIPPING
POSITION #2 / SEAT STUCK IN FOLDED
POSITION
When in this shipping position, the seat can also
be unfolded by spinning the circled pivot by hand
using a screwdriver.
This pivot can be accessed after removal of the
T25 screw.

16 point Seat Mounting bolts

The seats are mounted with a new style 16 point
internal bolt.
• Always replace the bolt after removal
• Torque to 42 Nm

16 point special tool(s)

For the new style 16 point internal seat mounting
bolts use either:
•

Wheel lock kit P/N 83 30 0 492 518:
use the #32 socket

•

A special tool P/N 36 13 6 765 545

Third Row manual seats
Upright position

A – Third Row Seats in upright position

Drivers seat folded down

B – Third Row Seats with Drivers side folded
down.

Third Row Power Seats
Seat overview

C-pillar mounted switch block

The buttons (S311 and S312) to control the
third row seats are located on the C-pillar.
•

Pulling the button lowers the seatback

Motor for head restraint fold and latch release

•

Pushing the button raises the seatback

•

The small recess above the buttons is
there to assist in entering the 3rd row

•

Wiring Schematics for these motors can
be found under “Electric seats 6 seats”

In each seat backrest there is one motor that
controls 3 Bowden cables.
•

•

•

Cables for head restraint fold / latch release

One of the cables controls the head
restraint folding. Once pulled, the
headrest will release and pivot
downwards.