Power Window Reverses Or Is Inoperative
Topic number

LI72.40-P-065822

Version

8

Function group

72.40 - Door control

Date

1/23/25

Validity

MODEL 213 up to manufacturing date 15.10.2019

Reason for change

Complaint/cause/remedy supplemented

Complaint
- Power window reverses direction on reaching upper end position.
- Power window inoperative, fault code P060A64 / B18C12A / B192015 is stored in fault memory of door control unit.

Cause
- Software error in door control unit (N69/X).
- Power window motor(s) on front door, left (M10/3) and/or front door, right (M10/4) => On vehicles with CODE 808,
809 or 800.

Remedy
1.) Read out hardware version of affected door control unit (N69/X) using quick test (see Figure 1).
=> For door control units with hardware version equal to/higher than 16/20 (year/week), continue with operation step
2.
=> For door control units with hardware versions 13/49, 14/23, 14/24 and 14/30, continue with operation step 3.

2.) Replace affected power window motor (M10/X).
IMPORTANT NOTE (see also SI document under WIS reference):
For vehicles with CODE 808, 809 or 800, the only motors in stock are the new power window motors with
modified carbon brushes for the front doors. For this reason, when replacing the power window motor left front door
(M10/3) or the front right power window motor, it is also essential to adapt the power window parameters in the corresponding control unit, front door, left (N69/1)
or control unit, front door, right (N69/2).

When doing so, the following procedure must be followed:
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a) Replace power window motor(s) on front door, left (M10/3) and/or right (M10/4).
b) Carry out commissioning of the door control unit(s) for the front door, left (N69/1) and/or right (N69/2) using
Xentry Diagnostics.
c) Then perform a function test on the power window system by
operating the power window switch in the direction of "AUTOMATIC DOWN" and "AUTOMATIC UP"to fully
open and close the side window.

Note:
Only replace the power window motor if the door control unit hardware version is 16/20!

3.) Perform commissioning of affected door control unit.
(Path: Xentry Diagnostics => Control units view => DCU-XX (N69/X) => Adaptations => Commission)
Note:
Since 09.08.2018, a new SCN coding is available for the current software release!
Commissioning ensures that the door control unit receives the current software release and the new SCN coding.

Attachments
File

Description

Bild 1.JPG

Picture 1 - Extract from quick test: Read out hardware
version of door control unit

WIS-References
Document number

Title

Note

SI72.29-P-007A

Service information: Using new power
window motors

Disclaimer
NOTE: The information contained in this document is intended for use by trained, professional technicians with the
knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz
approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and
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provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect
is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a
symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes
resulting in the same or similar symptoms or conditions described in this document, and trained professional service
technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained
in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

Symptoms
Body > Glazing > Window lifting mechanism/window operation > Remains stationary
Body > Glazing > Window lifting mechanism/window operation > Does not run up
Body > Glazing > Window lifting mechanism/window operation > Stiff/sluggish
Body > Glazing > Window lifting mechanism/window operation > Opens by itself

Parts
Part number

ES1 ES2 Designation

Quantity Note

EPC

A0009062910

TRANSMISSION MOTOR
FOR LEFT FRONT DOOR
WINDOW LIFTER

1

Code: 808, 809, 800

X

A0009062810

TRANSMISSION MOTOR
FOR RIGHT FRONT DOOR
WINDOW LIFTER

1

Code: 808, 809, 800

X

A2139060502

TRANSMISSION MOTOR
1
FOR LEFT REAR DOOR WINDOW LIFTER

X

A2139060602

TRANSMISSION MOTOR
FOR RIGHT REAR DOOR
WINDOW LIFTER

1

X

A2139069901

TRANSMISSION MOTOR
FOR LEFT FRONT DOOR
WINDOW LIFTER

1

Code: 807

X

A2139069501

TRANSMISSION MOTOR
FOR RIGHT FRONT DOOR
WINDOW LIFTER

1

Code: 807

X

Control unit/fault code
Control unit

Fault text

N69/1 - Left front door (DCU-LF) (DMFL222_MOPF)

-

N69/1 - Left front door (DCU-LF) (DMFL213)

-

N69/2 - Right front door (DCU-RF) (DMFR222_MOPF)

-

N69/2 - Right front door (DCU-RF) (DMFR213)

-

N69/3 - Left rear door (DCU-LR) (DMRL222_MOPF)

-

N69/3 - Left rear door (DCU-LR) (DMRL213)

-

N69/4 - Right rear door (DCU-RR) (DMRR222_MOPF)

-

N69/4 - Right rear door (DCU-RR) (DMRR213)

-

Operation numbers/damage codes
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Op. no.

Operation text

Time

Damage
code

Note

72220GR
72230GR
73A30GR
73N30GR

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