B521423 Service Bulletin/Repair Instructions

10/25/23, 2:51 PM
52 14 23_THIRD SEAT ROW BACKREST BOWDEN CABLE CHANGE
SIB 52 14 23

THIRD SEAT ROW BACKREST BOWDEN CABLE CHANGE

☒
2023-10-25
THIS REPAIR IS MOBILE FRIENDLY
MODEL

E-Series

G07
Model Description

X7 Sports Activity Vehicle
Affected Option Code

Vehicles with power third row seat SA4UB
SITUATION

A change in Bowden cable routing is observed in the third seat row backrest.

Replacement Bowden cables are shorter than original parts.
CAUSE

A Bowden cable routing change was made in the third seat row backrest. This change was implemented

starting in February 2023 production.

All the replacement parts are the new “shortened cable” design version which requires the use of

the new routing procedure when they are installed in vehicles produced prior to February 2023.
CORRECTION

See procedure attached.

These networked seats are described in detail in Service Bulletin B52 23 19 which contains all relevant seat

bulletins.

For diagnosis of the head restraint and/or backrest of the third seat row, see Service Bulletin B52 09 20.
PARTS INFORMATION

To determine the part number that applies to the specific vehicle being repaired, enter the VIN/chassis

number into either ETK or AIR, this will consider the specific equipment and/or options that are fitted to the

vehicle.

Part Number

52 30 5 A1E 228

52 30 5 A1E 229
Description

Inboard Bowden Cable

Outboard Bowden Cable
Quantity

2 Max (if needed)

2 Max (if needed)
CLAIM INFORMATION

This Service Information Bulletin provides technical, and repair procedure-related information.

Damage and/or issues caused by outside influences are not covered under the BMW limited warranties.

Eligible and Covered Work/Repairs

Repairs that address a verified defect in materials and/or workmanship are covered under the terms of the

BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks.

To submit a claim, please follow the established and applicable warranty policy and procedures

(Labor/Part/Sublet) that apply to the repair being performed.

Refer to AIR for the corresponding Repair Code for claim submission. Obtain applicable flat rate labor

operation codes (including the diagnosis* that applies) and the corresponding flat rate unit (FRU)
Copyright ©2023 BMW of North America, Inc.

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10/25/23, 2:51 PM
52 14 23_THIRD SEAT ROW BACKREST BOWDEN CABLE CHANGE
allowances.

Only one Main labor operation code can be claimed per repair visit.

BMW Group’s AIR Application Resource for Flat Rate Labor Operation Codes

To obtain the corresponding flat rate unit (FRU) allowance information from the BMW Group AIR application

resource, start by entering the Chassis Number (the last seven (7) characters of the VIN, select the

applicable Model if two or more vehicle choices show), or enter the full VIN (17 characters), click on the

“Search” button. Next, click on the “Flat Rate Units” button and enter the flat rate labor operation code in the

field to the right, click “Search” to display the Flat Rate Unit Group detail choices.

*Based on which one applies to your center, please refer to SI B01 01 20 or B01 07 20 for the applicable

procedure for documenting, claiming, and explaining, on the RO and in the claim comments, your diagnosis

work time (WT), job/repair work time (WT), and the vehicle repairs your center performed, unless otherwise

required by State law.
FEEDBACK REGARDING THIS BULLETIN

Technical Feedback

Warranty Feedback

Parts Feedback
To submit feedback for the technical topic of this bulletin: Submit your

feedback in the rating box at the top of this bulletin

To submit feedback for the CLAIMS section of this bulletin: Submit an IDS

ticket to the Warranty Department, or use the chat available in the

Warranty Documentation Portal

To submit feedback for the PARTS section of this bulletin: Submit an IDS

ticket to the Parts Department
Supporting Materials

picture_as_pdf B521423 Replace bowden cables G07 3SR.pdf
Copyright ©2023 BMW of North America, Inc.

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52 14 23_THIRD SEAT ROW BACKREST BOWDEN CABLE CHANGE
Copyright ©2023 BMW of North America, Inc.

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Attachment to SI B52 14 23
October 2023
Bowden cable changes for third row seat backrest G07
1. Identify which Bowden cable you will be using for replacement

a) Shorter type (new) Introduced in production vehicles February 2023

b) Longer type (old)

2. Removing OB Bowden cable

3. Seat structure without Bowden cables

4. Assembly (routing) new Bowden cables

5. Replacing (routing) old Bowden cable
IB = Inboard side of seat

OB = Outboard side of seat
Page: 1
slide #2
slide #3

slide #13

slide #17

slide #18
Attachment to SI B52 14 23
October 2023
1. Long/old vs Short/new bowden cable

Inboard bowden cable (barrel end)

5A1E229
Outboard bowden cable (snowman end)

5A1E228

Old:

Has 2 clipping barrels
Old:

Has 2 clipping barrels
New:

Has 1 clipping barrel
New:

Has 1 clipping barrel
Page: 2
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable

1.
Place the seat structure in construction

(upright) position. Like

shown in the image.
Page: 3
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable
2. Move down the actuator of the

head rest. This will release tension

from the Bowden cable.
Page: 4
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable
3. Remove plastic cover of the

actuator with a screwdriver

pushing the ribs to the side.
Page: 5
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable

4. Unclip Bowden cable barrel from

the actuator housing.
Page: 6
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable

5. Remove Bowden cable from the

white clip and remove Christmas tree

clip from back panel.
OB side
Page: 7
IB side
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable

6. For OLD Bowden cables ONLY; move the Bowden

cable to the back side of the seat structure and remove

cable from the white plastic fixation clip of the rear

traverse support.
Page: 8
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable
7. For OB side, unclip the

Bowden barrel from the pulley

housing.
OB side
IB side
For IB side, unclip the

Bowden barrel from the

bracket.
Page: 9
Attachment to SI B52 14 23
Replacing old bowden cable
October 2023
OB side

IB side
8. Remove the Bowden cable from

the chanel of the pulley .
Page: 10
Attachment to SI B52 14 23
October 2023
OB side
Replacing old bowden cable

9. For OB side, detach snowman

clip from latch pin with pliers.
Page: 11
Attachment to SI B52 14 23
October 2023
IB side
Replacing old bowden cable

10. For IB side, remove Bowden

cable barrel from plastic clip pushing

towards OB of the car in Y direction
Page: 12
Attachment to SI B52 14 23
October 2023
Replacing old bowden cable
11. Seat Structure without Bowden cables
Page: 13
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly
1. Place the seat structure in KO-KO position, as shown.

Old bowden cable routing
New bowden cable routing
Page: 14
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

2. For OB side, insert the snowman clip in the latch and pull to ensure the assembly.The seam of the end sleeve (metallic

barrel that holds the wire) must be facing IB side.

OB side
OB side
Page: 15
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

3.For IB side, align end barrel in its slot as shown in the picture on the right.

Then for IB/OB side, loop the wire thru the pulley so it fits in its chanel.

IB side
OB side
Page: 16
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

Caution!

For new Bowden cable assembly; routing is

not requiring the white fixation clip.

Bowden cable is going under the back panel and

on the side of the isofix bracket, like it shows on

the image.

IB side
OB side
Rear view

Page: 17
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

Exception for old Bowden cables

(Before February 2023)
For old Bowden cable assembly; routing

should be done throughout the rear traverse,

insert the barrel in the white plastic fixation

clip.
For OB Bowden cable, it should run from OB to

IB throughout the traverse and upwards in the

IB side of the backrest.
IB side
OB side
For IB Bowden cable, it should run from IB to

OB throughout the traverse and upwards in the

OB side of the backrest.
Front view

Page: 18
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly
Old Bowden cable
5. Loop down from the backrest and install

the Christmas tree.

Follow the routing according to the cable

used.

OB side
IB side
Front view
New Bowden Cable

IB side

OB side
OB side
IB side
Rear view

Page: 19
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly
New Bowden Cable
Old Bowden Cable
6. Route the cable and attach Bowden

cable into its white clip.

Follow the routing according to the

Bowden cable used.
OB side
IB side
Page: 20
OB side
IB side
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

7. Attach the new

Bowden cable spring by

attaching the end in the

spindle nut (white plastic)

of the actuator.
Page: 21
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

8. Attach barrel in actuator by

pulling the cable until the barrel

can fit in the actuator.

Then push the barrel in its place, a

click must be heard.
Page: 22
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly

9. Reinstall actuator cover.
Page: 23
Attachment to SI B52 14 23
October 2023
Bowden Cable Assembly
10. Function test seat to confirm everything is working well.
Old Bowden Cable
Page: 24
New Bowden Cable

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