NHTSA ID Number: 11028215

Manufacturer Communication Number: 2080372/1

TSB/Document Date: 2026-02-04


Summary

Window Drop Glass Operation | Continental GT/GTC | 25-26MY. Condition: • Incorrect operation / function of the front and / or rear window drop glass • Front and / or rear drop glass fails to open / close or attempts to close and re-opens once contact has been made between the glass and applicable seal • DTC for window regulator motor no basic setting B148754 evident within any of the 4 window control modules (diagnostic address 42, 52, BB and BC) for loss of basic settings


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TSB/Document ID: 2080372/1

Replacement Service Bulletin Number:

MFR Communication Date: 2026-01-20

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: STRUCTURE:BODY

MFR Component System:

MFR Component Subsystem:


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adjusters are being adjusted out of specification.
In some cases, since not all adjusters are visible, there is a possibility that the adjusters can be set to their maximum
inboard/outboard and induce excess tension in the regulators and affect the angle the windows enter the seals.
There is free play built into the front and rear regulators, therefore as the windows are being held in place by the cant
rail/convertible roof seals when closed, this may not be apparent when measuring. However, these extreme
adjustments can cause issues with how the windows enter the cant rail/convertible roof seals or how the front and rear
glasses interlock with each other, in some cases this can cause the seals to pinch and cause an anti-trap condition
leading to window reversal.
The following procedure should be applied to reset the regulator adjusters to factory delivered specification and then
fine tune any adjustments from there in line with the TPI specifications. To access all 8 adjusters the front door and
rear quarter panel trims will require removal.

INTERNAL

Front quarter glass adjuster reset - 1

The measurement between the bottom of the
mounting washer and division bar frame, is
12.5mm.
To reset this adjuster without removing the
quarter glass;
1. loosen the lock nut.
2. Screw the adjuster fully clockwise until it
bottoms out on the frame.
3. Unscrew the adjuster counterclockwise by
four complete turns.
4. Resecure the lock nut.
Figure 1. Image for reference, glass does not require removal
from vehicle

INTERNAL

Finally, set the height and profile to the TPI
specification before proceeding to the next step.

Front door regulator adjuster reset - 2

Regulator adjusters A, B
A = To reset this adjuster without removing the regulator
fully screw in clockwise until hard stop, then unscrew 4 turns
anticlockwise and relock the lock nut
B = To reset this adjuster without removing the regulator
fully screw in clockwise until hard stop, then unscrew 4 turns
anticlockwise and relock the lock nut

B

A

Regulator adjusters C, D

C

Figure 2

INTERNAL

D

C = To reset this adjuster without removing the front
regulator, fully screw in clockwise until hard stop, then
unscrew 12 turns anticlockwise and relock the lock nut.
D = To reset this adjuster without removing the quarter
glass fully screw in clockwise until hard stop, then unscrew
8.5 turns anticlockwise relock the lock nut.

Measuring from front div bar to rear of
the glass

Specification
971mm ± 1mm
If out of specification, refer to the next
slide to adjust the glass position
INTERNAL

Measure 100mm up from
the waist rail

Front door glass check and set

Loosen bolts -3- & -4- to ensure the glass sits in mounting position in its
lowest position. Then resecure the bolts.
NOTE: If the 971 mm ± 1mm specification shown on the previous slide is
incorrect, these bolts must be loosened to adjust the glass forward or
backward as needed to meet the correct specification.

Figure 3

GTC ONLY
If the specifications for interlock points 2, 3 or 4 cannot be achieved through normal
adjustment, insert the ratchet as shown in figure 4 and unwind both screws two full
turns counterclockwise.
Then loosen the two purple bolts (-3- & -4-) in figure 3, raise the glass evenly as
required, and re-secure the two purple bolts. Finally, return to the allen key (ratchet)
adjustment to set interlock points 2, 3 and 4 to specification. Check the 971mm
measurement has not altered, if so, re-adjust as required.
INTERNAL

Figure 4

Rear quarter regulator adjuster reset

Ensure blue closing panel (see image) is
not stopping the regulator from moving
when performing these adjustments by
ensuring the nuts securing this are
loose while resetting this regulator.
Figure 6

INTERNAL

Rear quarter regulator adjuster reset

Rear Regulator adjusters 1, 2, 3
Adjust the rear window regulator adjusters at the
following points as shown in the following page
Before resetting adjusters remove the 3 13mm lock
nuts (1-3 in image) to allow adjusters to be fully
screwed in without damaging the regulator.
1 – Fully screw in clockwise until hard stop, then
unscrew 9.5 turns anticlockwise and refit the lock nut.

INTERNAL

Figure 7

2 – Fully screw in clockwise until hard stop, then
unscrew 9.5 turns anticlockwise, refit the lock nut

NOTE: After you have carried out the reset
procedure, ensure measurements are rechecked as
per the check & measurements attachment

3 – Fully screw in clockwise until hard stop, then
unscrew 1 turn anticlockwise, refit the lock nut.

Door ECU wire check/replacement

For 25MY & Pre 25MY Only
After completing the regulator reset procedure,
replace the original motor-to-door ECU feed
wires (yellow in the photograph) with new wires
(part number: 000 979 242 E).
Approximately eight wires are required to achieve
the necessary extension length.
Parts should be sourced from VW/Audi.
Refer to the information below and ElsaPro
Repair Group 97 Wiring harness repairs
Figure 8

INTERNAL

Final checks
After all adjustments have been made and recorded. Door ECU basic settings must be
relearnt. Ensure battery is fully charged and passes battery test in ODIS.
Test window operation in all scenarios, e.g. global open/close, individual window
switches, driver door switches, convenience open/close (where applicable), short drop
functions when opening/closing doors and with convertible roof open/closed if working
on a New GTC.
Finally, ensure vehicle still passes water ingress test and does not have excessive wind
noise, any further adjustments must remain within ELSA specifications.

INTERNAL

Retailer Glass Measurement
Procedure for GTC
BY635

For measurement specifications refer only to the
information in this TPI, refer to ElsaPro for all
adjustment instructions as required.

INTERNAL

INTERLOCK POINT 1

The steel rule shown in the images is for reference purposes
only. To avoid potential damage to vehicle surfaces, it is
recommended to use a plastic rule or vernier when performing
measurements or alignments.

From block to bright ware for all
interlock points
Specification
7.5mm ± 1mm
(Interlock Tool WT10549/1)

Place block 50mm in
front of front div bar
INTERNAL

Record measurement for
all interlock points

If the measurement is out of specification
refer to ElsaPro
Repair Group 64 ‘Front door quarter
glass – To adjust’

INTERLOCK POINT 2

From block to bright ware for all
interlock points
Specification
8.5mm ± 1mm
(Interlock Tool WT10549/1)

FRONT DIV BAR

If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door quarter
glass – To adjust’

Place block 100mm in
front of front div bar
INTERNAL

Record measurement for
all interlock points

If the specification for interlock points 2, 3 or 4 cannot be
achieved through normal adjustment, refer to page 6 of the
glass reset procedure.

INTERLOCK POINT 3

Specification
8.5mm ± 1mm
(Interlock Tool WT10554)

150mm from front
corner of window glass
as shown
INTERNAL

1. Hook onto glass with door open at measured point
2. Close door and allow glass to close
3. Lightly push gauge to top and take measurement
at indicated point. Do not deform the seal.

If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’
If the specification for interlock points 2, 3 or 4 cannot
be achieved through normal adjustment, refer to page
6 of the glass reset procedure.

INTERLOCK POINT 4

Specification
8.5mm ± 1mm
(Interlock Tool WT10554)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’
If the specification for interlock points 2, 3 or 4
cannot be achieved through normal adjustment, refer
to page 6 of the glass reset procedure.

50mm from rear edge of
the front door glass as
shown
INTERNAL

1. Hook onto glass with door open at measured point
2. Close door and allow glass to close
3. Lightly push gauge to top and take measurement
at indicated point. Do not deform the seal.

INTERLOCK POINT 5 ROOF UP

Do not use a Steel Rule against the div bar to measure, use a
plastic vernier/rule

Specification
11mm ± 1mm
(Ruler/vernier)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’

50mm from corner
INTERNAL

Record measurement

INTERLOCK POINT 5 ROOF DOWN

Do not use a Steel Rule against the div bar to measure, use a
plastic vernier/rule

Specification
11mm ± 1mm
(Ruler/vernier)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’

Take measurement
50mm from top of glass
INTERNAL

Record measurement

INTERLOCK POINT 6 ROOF UP & DOWN

Do not use a Steel Rule against the div bar
to measure, use a plastic vernier/rule

Specification
11mm ± 1mm
(Ruler/vernier)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’

50mm from corner
INTERNAL

Record measurement

INTERLOCK POINT 7

Specification
8.5mm ± 1mm
(Interlock Tool WT10554)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’

50mm behind rear div bar

1. Hook onto glass with door open at measured point
2. Close door and allow glass to close
3. Lightly push gauge to top and take measurement at
indicated point. Do not deform the seal.

INTERNAL

INTERLOCK POINT 8

Specification
8.5mm – 16mm
(Interlock Tool WT10554)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Front door
quarter glass – To adjust’

100mm from corner

1. Hook onto glass with door open at measured point
2. Close door and allow glass to close
3. Lightly push gauge to top and take measurement
at indicated point. Do not deform the seal.

INTERNAL

PROFILE POINT 1

Specification
10mm ± 1mm
(Profile Tool WT10549/2)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

50mm in front of front div
bar
INTERNAL

Flat against glass to
brightware

PROFILE POINT 2

Specification
14mm ± 2mm
(Profile Tool WT10549/2)

FRONT DIV BAR

Place block 50mm in front
of front div bar
INTERNAL

If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

Flat against glass to
brightware

PROFILE POINT 3 ROOF UP
3
7

A

Front

50mm

B
50mm from upper corner
INTERNAL

Flat against front
window, measure gap

Specification
Point A tool against glass is +2mm
Allowable up to 3mm refer to Point B
(Profile Tool WT10549/3)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

PROFILE POINT 3 ROOF DOWN
3
7

A

50mm
Front

B

50mm from upper corner
INTERNAL

Flat against front window,
measure gap

Specification
Point A tool against glass is
+2mm
Allowable up to 3mm refer to
Point B
(Profile Tool WT10549/3)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

PROFILE POINT 4
4

A

Front

50mm

B
50mm from lower corner
INTERNAL

Flat against front
window, measure gap

Specification
Point A tool against glass = +2mm
Allowable up to 3mm refer to Point B
(Profile Tool 17301)
If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

WAIST SEAL MEASUREMENT POINT A
Specification
(A.1) 100mm from corner
(A.2) 5mm ± 1mm
(Ruler)

A.1

If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

A.2

See image below, for OK and NOK after
adjustment/checking
NOK

OK

Mark on tape 100mm
from div bar (A.1)
INTERNAL

Measure from first lip rubber
seal to window glass (A.2)

WAIST SEAL MEASUREMENT POINT B

B.2
Specification
(B.1) 100mm from corner
(B.2) 5mm ± 1mm
(Ruler)

B.1

If the measurement is out of
specification refer to ElsaPro
Repair Group 64 ‘Slide glass
checking and adjusting’

Mark on tape 100mm from
div bar (B.1)
INTERNAL

Measure from first lip
rubber seal to window glass
(B.2)

WAIST SEAL MEASUREMENT POINT C

C.1
C.2

Specification
(C.1) 100mm from corner
(C.2) 5mm ± 2mm
(Ruler)
If the measurement is out
of specification refer to
ElsaPro Repair Group 64
‘Slide glass checking and
adjusting’

Mark on tape 100mm
from div bar (C.1)
INTERNAL

Measure seal to
window gap (C.2)

RECORDED MEASUREMENTS

Interlock

Profile

Waist Seal

INTERNAL

Point

Position

Specification

Interlock Point 1

50mm in front of front div bar

7.5mm ± 1mm

Interlock Point 2

100mm in front of front div bar

8.5mm ± 1mm

Interlock Point 3

150mm from front corner of window glass

8.5mm ± 1mm

Interlock Point 4

123


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