Car-Interface CI-RL2-MBN45 User manual

Version 11.05.2021 HW CAM(V31),(V22) CI-RL2-MBN45
Video-inserter
CI-RL2-MBN45
Compatible with Mercedes Benz vehicles
Generation NTG4.5 with Command Online or Audio20
with 4pin HSD LVDS connector on the monitor
Video-inserter for rear-view camera
and two additional video sources
Product features
Video-inserter for factory-infotainment systems
2 CVBS video-inputs for after-market devices (e.g. DVD-Player, DVB-T tuner)
CVBS Rear-view camera video-input
Automatic switching to rear-view camera input on engagement of reverse gear
Activatable parking guide lines for rear-view camera (not available for all vehicles)
Video-in-motion (ONLY for connected video-sources)
Video-inputs PAL/NTSC compatible

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Contents
1. Prior to installation
1.1. …Delivery contents
1.2. Checking the compatibility of vehicle and accessories
1.3. Boxes and connectors
1.3.1. CAN-bus box
1.3.2. Video-interface
1.4. Dip-switch settings
1.4.1.1. …Enabling the interface’s video inputs (dip 2-3)
1.4.1.2. Rear-view camera setting (dip 5)
1.4.1.3. Monitor selection (dip 7-8)
2. Installation
2.1. Place of installation
2.2. Connection schema
2.3. Connection - video-interface and CAN-box
2.4. Connection - factory monitor
2.5. Connection - head-unit
2.6. Connecting –video sources
2.6.1. Audio-insertion
2.6.2. After-market rear-view camera
2.6.2.1. Case 1: CAN-box detects reverse gear
2.6.2.2. Case 2: CAN-box does not detect reverse gear
2.7. Connection video-interface and keypad
2.8. Picture settings and guide lines
3. Interface operation
3.1. By infotainment key
3.2. By keypad
4. Specifications video-interface
5. Frequently asked questions

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Legal Information
By law, watching moving pictures while driving is prohibited, the driver must not be
distracted. We do not accept any liability for material damage or personal injury resulting,
directly or indirectly, from installation or operation of this product. This product should only
be used while standing or to display fixed menus or rear-view-camera video when the
vehicle is moving, for example the MP3 menu for DVD upgrades.
Changes/updates of the vehicle’s software can cause malfunctions of the interface. If
available, we offer free software-updates for our interfaces for one year after purchase. To
receive a free update, the interface must be sent in at own cost. Labor cost for and other
expenses involved with the software-updates will not be refunded.
1. Prior to installation
Read the manual prior to installation.
Technical knowledge is necessary for installation. The place of installation must be free of
moisture and away from heat sources.
1.1. Delivery contents
Take down the serial number of the interface and store this manual for support
purposes: ____________________

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Voraussetzungen
Brand
Model
Navigation
Mercedes
A-class (W176) since 07/2012 up to 08/2015
B- class (W246) since 11/2011 up to 10/2014
C- class (W204) since 03/2011 up to 10/2014
C- class Coupé (C204) since 06/2011 up to about 2014
CLA-Coupé (C117) since 01/2013 up to about 09/2014
CLS-Coupé (C218) since 06/2011 up to about 07/2014
E- class (S/W212) since 06/2011 up to about 10/2014
E- class Coupé (C207) since 06/2011 up to about 05/2015
G-model (G463) since 07/2012 up to 09/2016
GL- class (X166) since 11/2012 up to 08/2016
GLA- class (X156) since 09/2013 up to about 08/2015
GLK- class (X204) since 01/2011
ML- class (W166) since 11/2011 up to 07/2015
SLK- class (R172) since 03/2011 up to about 2015
SL- class (R231) since about. 2012 up to about 09/2015
Comand Online
NTG4.5
Audio20 NTG4.5
Both with 4-Pin HSD
connector at the
monitor
Not compatible with
dual-view monitors!
Limitations
Video only The interface inserts ONLY video signals into the infotainment.
For audio insertion a factory audio-AUX input or FM-modulator
is required. For AUX option coding we offer OBD-N45-X-01.
Factory media interface If available, its AUX cable with 3.5mm jack (available at MB), can
be used for audio insertion. While used for audio insertion, the
Apple adapter or USB adapter cannot be used simultaneously.
Factory rear-view camera Automatic switch-back from inserted video to factory rear-view
camera only while reverse gear is engaged. To delay the switch-
back time, additional electronics is required.
PDC and guidelines If the video interface does not receive the required information
from the vehicle CAN-bus, neither guide-lines nor optical PDC
display will be supported.
1.2. Checking the compatibility of vehicle and accessories

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1.3. Boxes and connectors
1.3.1. CAN-bus box
The CAN-bus box reads digital signals from the vehicle’s CAN-bus and converts them for the
video-interface.
1.3.2. Video-interface
The video-interface converts the video signals of connected after-market sources in a factory
monitor compatible picture signal which is inserted in the factory monitor, by using separate
trigger options. Further it reads the vehicle’s digital signals out of the vehicle’s CAN-bus and
converts them for the video interface.

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1.4. Dip-switch settings
Some settings must be selected by the dip-switches on the
video interface. Dip position down is ON and position up is OFF.
See following chapters for detailed information.
1.4.1.1. Enabling the interface’s video inputs (dip 2-3)
Only the enabled video inputs can be accessed when switching through the interface’s video
sources. It is recommended to enable only the required inputs for the disabled will be
skipped when switching through the video interfaces inputs.
1.4.1.2. Rear-view camera setting (dip 5)
If set to OFF, the interface switches to factory LVDS picture while the reverse gear is engaged
to display factory rear-view camera or factory optical park system picture.
If set to ON, the interface witches to its rear-view camera input CAM while the reverse gear
is engaged.
1.4.1.3. Monitor selection (dip 7-8)
Dips 7 and 8 customize the monitor-specific video settings which sometimes even vary
within head units of the same version, caused by different monitor specifications. It is
necessary to try all possible combinations while a working video source is connected to the
chosen input of the interface (both OFF, both ON, 7 OFF and 8 ON, 7 ON and 8 OFF). One of
the 4 combinations will show the best picture size and quality (some may give
no picture/black picture). It is possible to first hot plug through the dip combinations. If
there is no change of picture visible after trying all 4 options, retry and disconnect the 6pin
plug of the video intzerface between every change of the dip setting.
After each Dip-switch-change a power-reset of the Video Interface has to be performed!
Dip
Function
ON (down)
OFF (up)
1
No function
-
set to OFF
2
Video 1 input
enabled
disabled
3
Video 2 input
enabled
disabled
4
No function
-
set to OFF
5
Rear-view cam type
after-market
factory or none
6
No function
set to OFF
7
Monitor specific
adjustments
Try all 4 possible combinations of Dips 7 and 8 to receive
the best picture (in quality, size and in case of black
picture)
8

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2. Installation
To install the interface, first switch off the ignition and disconnect the vehicle’s battery.
Please read the owner`s manual of the car, regarding the battery`s disconnection! If
required, enable the car`s Sleep-mode (hibernation mode)
In case the sleep-mode does not succeed, the disconnection of the battery can be done
with a resistor lead.
If the necessary stabilized power supply for the interface is not taken directly from the
battery, the chosen connection has to be checked for being constantly stabile.
The interface needs a permanent 12V source!
2.1. Place of installation
The interface shell be installed on the backside of the factory monitor and head-unit.

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2.2. Connection scheme

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2.3. Connection - video-interface and CAN-box
The CAN-bus box reads digital signals from the CAN-bus and converts them for the video-
interface. ACC +12V max. 0.5A (red of 6pin) and reverse gear +12V max. 0.5A (green of 6pin)
constant signal. Video-source switching (white of 6pin) as +12V impulse.
Connect theblack female 10pin connector of the Quadlock harness to the male 10pin
connector of the CAN-box.
Connect the white female 6pin connector of the 6pin to 8pin cable to the male 6pin
connector of the video-interface.
Connect the black female 8pin connector of the 6pin to 8pin cable to the male 8pin
connector of the CAN-box.
Note: Check the LEDs on CAN-box after reconnecting the battery, two must be on.
Not all vehicles are kompatible. If the CAN-box does not deliver ACC to pin2 of the video-
interface or blocks the thevehicle’s CAN, it is possible to install the video interface without
the CAN-box. In this case see also note in chapter after-market rear-view camera if one is
supposed to be connected.

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2.4. Connection - factory monitor
Remove factory monitor.
Remove the blue female 4pin HSD connector from the rearside of the factory
monitor and connect it to the aubergine colored male 4pin HSD connector of the
picture signal cable.
Connect the waterblue colored female 4pin HSD connector of the picture signal cable
to the white male 4pin HSD connector of the factory monitor.
Connect the waterblue colored female HSD+2 connector of the picture signal cable
to the male HSD+2 connector of the video-interface.
Note: No liability for vehicle wire colours and pin definition!
Changes by the vehicle manufacturer are possible. The given information has to be verified
by the installer..

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2.5. Connection - head-unit
Remove head-unit and unlock and disconnect the female 40pin Quadlock connector at the
head unit’s rear-side.
Clip out the conceivably existing optical leads at the female Quadlock
connector of the factory harness and clip it in the prefabricated
plug-in location at the female Quadlock connector of the Quadlock
harness.
Connect the previously become free female Quadlock connector of the
factory harness to the male Quadlock connector of the Quadlock harness.
Connect the opposite female Quadlock connector of the Quadlock harness
to the Quadlock connector of the head unit.

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2.6. Connection –video sources
It is possible to connect 2 after-market Video-sources and 1 after-market rear-view camera
to the video-interface.
Before final installation of the peripheral devices, we recommend a test-run of the
interface. Due to changes in the production of the vehicle manufacturer is always the
possibility of incompatibility.
Connect the female 6pin connector of the video cable to the male 6pin connector of the
video-interface.
Connect the video RCA of the video source 1 and 2 to the female RCA connector
“Video IN1” and ”Video IN 2” of the 6pin video cable.
Connect the video RCA of the rear-view camera to the female RCA connector
“Camera IN” of the 6pin video cable.

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2.6.1. Audio insertion
This interface can only insert video signals into the factory infotainment. Audio insertion
must be done by factory audio AUX input or FM-modulator. The inserted video-signal can be
activated simultaneously to each audio-mode of the factory infotainment.
2.6.2. After-market rear-view camera
Some vehicles have a different reverse gear code on the CAN-bus which the included CAN-
box is not compatible with. Therefore, there are two different ways of installation. If the
CAN-box detectes the vehicle’s reverse gear, the green wire of the 6pin to 8pin cable should
carry +12V while the reverse gear is engaged.
Note: Do not forget to set dip5 of video-interface to ON before testing.
2.6.2.1. Case 1: CAN-box detects reverse gear
If the CAN-bus interface delivers +12V on the green wire of the 6pin to 8pin cable when
reverse gear is engaged, the video interface will automatically be switched to the rear-view
camera input CAM while reverse gear is engaged.
Additionally, the +12V (max. 500mA) power supply for the rear-view camera can be
taken from the green wire of the 6pin to 8pin cable.

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2.6.2.2. Case 2: CAN-box does not detect reverse gear
If the CAN-bus interface does not deliver +12V on the green wire of the 6pin to 8pin cable
when reverse gear is engaged (not all vehicles are compatible) an external switching signal
from the reverse gear light is required. As the reverse gear light signal contains electronic
interference, a normally open relay (e.g AC-RW-1230 with wiring AC-RS5) or filter (e.g. AC-
PNF-RVC) is required. Below schema shows the use of a relay (normally open).
Connect the green wire of the 6pin to 8pin cable to the output connector (87) of the
relay.
Connect the Reverse light’s power-cable to coil (85) and the vehicle’s ground to coil
(86) of the relay.
Connect the output connector (87) of the relay to the rear-view camera’s power-
cable, like you did it to the green wire of the 6pin to 8pin cable before.
Connect stabile and permanent +12V to the relay’s input connector (30).

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2.7. Connecting video-interface and keypad
Connect the female 4pin connector of the keypad to the male 4pin connector of the
video-interface.

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2.8. Picture settings and guide lines
The picture settings are adjusted by the 3 buttons on the video-interface. Press the MENU
button to open the OSD settings menu or to switch to the next menu item. Press UP and
DOWN will change the selected value. The buttons are embedded in the housing to avoid
accidental changes during or after installation. Picture settings must be done separately for
AV1 and AV2 while the corresponding input is selected and visible on the monitor. The rear-
view camera settings conceivably have to be done in AV 2.
Note: The OSD menu is only shown when a working video source is connected to the
selected video-input of the interface.
The following settings are available:
Contrast
Brightness
Saturation
Position H (horizontal)
Position V (vertical)
Guide-CNTRL (guide lines ON/OFF)
Note:
To adjust the reverse picture, engage the reverse gear.
To adjust the guide lines, move the steering wheel to see the changes.
If there is no communication between interface and the vehicle`s CAN-bus (several vehicles
aren’t compatible), the reverse gear guide-lines can`t be shown during the vehicle’s
operation, even if they once appear after having switched the system to powerless!
Optionen: GUIDE-CNTRL
All ON: Guide lines und PDC werden
angezeigt
PDC ON: Nur PDC wird angezeigt.
Guide ON: Nur Guide lines angezeigt.
ALL Off: Guide lines und PDC
werden nicht angezeigt.

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3. Interface operation
2.6. By infotainment-buttons
Some of the Comand-buttons can be used to execute interface functions.
Long press C button (3 sec.) beside knob in centre console to switch the video source. Each
repetition will switch to the next enabled input. If all inputs are enabled the order is:
Factory video  video 1  video 2  factory video
Inputs which are not enabled by dip switch settings are skipped.
Switchover by vehicle buttons isn’t possible in all vehicles. In some vehicles the external
keypad must be used.
Note: The white wire of the 6pin cable can be used with a +5-12V pulse to switch the video-
sources alternatively.
3.1. By keypad
Alternatively or additionally to the factory infotainment buttons the interface’s external
keypad can be used to switch the enabled inputs.
4. Specifications video-interface
BATT/ACC range 7V - 25V
Stand-by power drain 15mA
Power 310mA
Video input 0.7V - 1V
Video input formats PAL/NTSC
Temperature range -40°C to +85°C
Dimensions video-box (W x H x D) 113 x 22 x 115mm
Dimensions CAN-box (W x H x D) 89 x 27 x 65 mm

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5. FAQ –Trouble shooting Interface functions
For any troubles which may occur, check the following table for a solution before requesting
support from your vendor.
Symptom
Reason
Possible solution
No picture/black
picture (factory
picture).
Not all connectors have been
reconnected to factory head-
unit or monitor after
installation.
Connect missing connectors.
No power on CAN-bus box (all
LED CAN-bus box are off).
Check power supply of CAN-bus box. Check CAN-bus
connection of CAN-bus box.
CAN-bus box connected to
CAN-bus in wrong place.
Refer to the manual where to connected to the CAN-
bus. If not mentioned, try another place to connect to
the CAN-bus.
No power on video-interface
(all LED video-interface are
off).
Check whether CAN-bus box delivers +12V ACC on red
wire output of 8pin to 6pin cable. If not cut wire and
supply ACC +12V directly to video-interface.
No picture/black
picture/white picture
(inserted picture) but
factory picture is OK.
No picture from video source.
Check on other monitor whether video source is OK.
No video-source connected to
the selected interface input.
Check settings dips 1 to 3 of video interface which
inputs are activated and switch to corresponding
input(s).
LVDS cables plugged in wrong
place.
Double-check whether order of LVDS cables is exactly
connected according to manual. Plugging into head-
unit does not work when the manual says to plug into
monitor and vice versa.
Wrong monitor settings of
video-interface.
Try different combinations of dips 7 and 8 of video-
interface. Unplug 6pin power after each change.
Inserted picture totally
wrong size or position.
Inserted picture double
or 4 times on monitor.
Inserted picture
distorted, flickering or
running vertically.
Video sources output set to
AUTO or MULTI which causes
a conflict with the interfaces
auto detection.
Set video source output fixed to PAL or NTSC. It is best
to set all video sources to the same standard.
If error occurs only after
source switching: Connected
sources are not set to the
same TV standard.
Set all video sources to the same standard.
Some interfaces can only
handle NTSC input.
Check manual whether there is a limitation to NTSC
mentioned. If yes, set source fixed to NTSC output.
Inserted picture b/w.
Inserted picture qual.
bad.
Picture settings have not been
adjusted.
Use the 3 buttons and the interface's OSD to adjust the
picture settings for the corresponding video input.
Inserted picture size
slightly wrong.
Inserted picture
position wrong.
Camera input picture
flickers.
Camera is being tested under
fluorescent light which shines
directly into the camera.
Test camera under natural light outside the garage.
Camera input picture is
bluish.
Protection sticker not
removed from camera lens.
Remove protection sticker from lens.

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Symptom
Reason
Possible solution
Camera input picture
black.
Camera power taken directly
from reverse gear lamp.
Use relay or electronics to "clean" reverse gear lamp
power. Alternatively, if CAN-bus box is compatible
with the vehicle, camera power can be taken from
green wire of 6pin to 8pin cable.
Camera input picture
has distortion.
Camera input picture
settings cannot be
adjusted.
Camera input picture settings
can only be adjusted in AV2
mode.
Set dip 3 of video-interface to ON (if not input AV2 is
not already activated) and connect the camera to AV2.
Switch to AV2 and adjust settings. Reconnect camera
to camera input and deactivate AV2 if not used for
other source.
Graphics of a car in
camera input picture.
Function PDC is ON in the
interface OSD.
In compatible vehicles, the graphics will display the
factory PDC distance. If not working or not wanted, set
interface OSD menu item UI-CNTRL to ALLOFF.
Chinese signs in
camera input picture
Function RET or ALL is ON
(function for Asian market) in
the interface OSD.
Set interface OSD menu item UI-CNTRL to ALLOFF or
PDCON.
Not possible to switch
video sources by OEM
button.
CAN-bus interface does not
support this function for
vehicle.
Use external keypad or cut white wire of 6pin to 8pin
cable and apply +12V impulses for AV-switching.
Pressed too short.
For video source switching a longer press of about 2.5
seconds is required.
Not possible to switch
video sources by
external keypad.
SW-version of interface does
not support external keypad.
Use OEM-button or cut white wire of 6pin to 8pin
cable and apply +12V impulses for AV-switching.
Interface does not
switch to camera input
when reverse gear is
engaged.
CAN-bus interface does not
support this function for the
vehicles.
Cut the green wire of the 6pin to 8pin cable and apply
+12V constant from reverse gear-lamp signal. Use
relay to "clean" R-gear lamp power.
Interface switches
video-sources by itself.
CAN-bus interface
compatibility to vehicle is
limited.
Cut the grey wire of 6pin to 8pin and isolate both
ends. If problem still occurs, additionally cut the white
wire of 6pin to 8pin cable and isolate both ends.
10R-03 5384
Made in China