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NHTSA ID Number: 10145336

Manufacturer Communication Number: B540618

TSB/Document Date: 2018-10-09


Summary

SERVICE ACTION: CHECKING AND, IF NECESSARY, REPLACING CONVERTIBLE TOP LOCKING BASE PLATE: The knurled bolts on the convertible top locking base plates may not have been installed correctly on the cowl panel.


TIS Service Bulletin

SI B54 06 18
Special Roofs

Page 1 of 3

July 2018
Technical Service

SERVICE ACTION: CHECKING AND, IF NECESSARY,
REPLACING CONVERTIBLE TOP LOCKING BASE PLATE
Please perform the procedure outlined in this Service Information on all affected vehicles before customer
delivery. In the event the customer has already taken delivery of the vehicle, please perform the procedure the
next time the vehicle is in the shop.

MODEL
I15 (I8 Roadster)

AFFECTED VEHICLES
This Service Action involves 77 I15 (I8 Roadsters) produced from 3/6/2018 to 5/14/2018.
Vehicles which require this Service Action to be completed will show it as “Open” when checked either in AIR,
the "Service Menu" of DCSnet (Dealer Communication System) or with the Key Reader.

SITUATION
The knurled bolts on the convertible top locking base plates may not have been installed correctly on the cowl
panel.

CAUSE
The knurled bolts may not have been pressed completely into the base plate.

CORRECTION
Inspect the knurled bolts for correct installation on both the right and left base plates on the upper cowl. If the
knurled bolts are not correctly installed, replace the affected base plate.

PROCEDURE

1. Lower the convertible top to inspect both convertible top
locking base plates above the windshield.

2. Inspect the installation of the knurled bolts of both base
plates. Reference the photo to the left for examples of faulty
bolt installation.
Are all 4 knurled bolts correctly pressed into both base

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TIS Service Bulletin

Page 2 of 3

plates?
YES: No further repair is needed.
NO: Continue to step 3 to replace one or both base plates.

3. Remove the upper cowl panel trim, following repair
instructions REP 51 44 150 “Replacing the cowl panel
trim, top, inner”.
4. Mark the position of the base plates before removal.
5. Disconnect the micro switch wiring and remove the affected
base plate(s) from the vehicle. Before complete removal, take
note of the number of shims used for each base plate.
Ensure the shims do not fall out when the mounting bolts are
removed.
6. Install the replacement base plate, reusing the original bolts
and shims. Be sure to install the same number of shims that
were removed. Install the base plate in the same marked
location as it was originally installed and tighten the bolts to
8nm. Reconnect the micro switch wiring.
7. For the right side base plate: After installation, ensure that
the locating pin of the convertible top is centered in the base
plate opening as seen to the left. If the locating pin is not
centered in the base plate, loosen the mounting bolts and
adjust left or right until centered.
Note: This can be visually inspected from the bottom. The
photo to the left demonstrates a view from the bottom looking up.

PARTS INFORMATION
Part Number

Description

Quantity

54 34 7 458 297

Left base plate

1

54 34 7 458 298

Right base plate

1

WARRANTY INFORMATION
Reimbursement for this Service Action will be via normal claim entry utilizing the following information:

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TIS Service Bulletin

Page 3 of 3

Defect Code:

0054550100

Completion “before” vehicle delivery to the customer or the vehicle is already in the workshop

Labor Operation:

Labor Allowance:

Description:

00 66 739

3 FRU

Checking both convertible top locking base plates
(No repair is necessary) (Plus work)

9 FRU

Checking both base plates and replacing one
convertible top locking base plate (Plus work)

10 FRU

Checking both base plates and replacing both
convertible top locking base plates (Plus work)

Or:
00 66 740
Or:
00 66 741
Or:
Completion after vehicle delivery to the customer (with no other Main work claimed)

Labor Operation:

Labor Allowance:

Description:

00 66 146

5 FRU

Checking both convertible top locking base plates
(No repair is necessary) (Main work)

11 FRU

Checking both base plates and replacing one
convertible top locking base plate (Main work)

12 FRU

Checking both base plates and replacing both
convertible top locking base plates (Main work)

Or:
00 66 147
Or:
00 66 148
And, as applicable:
Alternative Mobility Solution (AMS) for Vehicle Owners
This Service Action repair qualifies for Alternative Mobility Solution (AMS) expense reimbursement, claim this
item under the Defect Code noted above as follows:

Sublet Code 2 - Itemize the AMS sublet amount on the repair order and in the claim comment section.

Please refer to SI B01 29 16 for additional information.
[ Copyright ©2018 BMW of North America, Inc. ]

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TSB/Document ID: B540618

Replacement Service Bulletin Number:

MFR Communication Date: 2018-07-01

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: EQUIPMENT

MFR Component System:

MFR Component Subsystem:


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