ACV 42xmc002 - LFB Mercedes vehicles/Smart (W454)/VW ISO Multilead

Steering Wheel Remote Control Adapter Mercedes

Retain the original steering wheel remote control functions when replacing the factory radio with an aftermarket radio.
Depending on the vehicle's equipment, as well as the range of functions and software of the aftermarket device, individual control functions may be omitted or replaced by other functions.
Compare the adapter connectors shown with those in your vehicle and ensure that they match visually and technically.
Please also check whether one of the specified original factory radios was installed in your vehicle.
Before final assembly, check the vehicle functions, vehicle settings, and steering wheel remote control for proper functionality.

Noteice

• CAN Bus
• Connection: ISO
• Connection: OEM steering wheel remote control > 3.5mm jack / loose cable
• Vehicles with CAN Bus in the ISO power connector
• If the Mercedes connector variant is unknown:
• LFB Mercedes vehicles ISO/40-pin Quadlock Multilead  > Article: 42xmc00c
• Mercedes vehicles with 1-DIN Audio 5 OEM device
• Smart vehicles with 1-DIN OEM CD device
• VW vehicles with 1-DIN RCD 2001 OEM device
• Vehicles with radio preparation: Check CAN bus connection and ISO connector assignment by measuring before installation:
• Incorrect connection damages the interface.
• Vehicles without ISO connector assignment:
• Pin 7: +12V ignition current terminal 15
• Pin 6: +12V lighting terminal 58
• Vehicles with different comfort interior CAN bus connection:
• brown-red twisted > blue twisted: CAN high
• brown twisted > white twisted: CAN low
• CAN bus to CAN bus distributor sill trim
• CAN bus to climate control
• Reverse signal +12V not always supported:
• Reverse signal driver's side > white/blue alternative
• Dipp switch settings for the retrofit device manufacturer (see BDA)

Suitable for the following vehicles

• Mercedes A-Class (C169/W169) 10/2004 - 04/2008
• Mercedes A-Class (C169/W169) 06/2008 - 06/2012
• Mercedes B-Class (T245) 07/2005 - 04/2008
• Mercedes B-Class (T245) 04/2008 - 09/2011
• Mercedes C-Class (CL203/S203/W203) 02/2004 - 09/2007
• Mercedes Sprinter (W906) 04/2006 - 08/2013
• Mercedes Sprinter (W906) 08/2013 - 05/2018
• Mercedes Vito/Viano (W639) 04/2006 - 08/2010
• Mercedes Vito/Viano (W639) 09/2010 - 03/2014
• Smart For Four (W454) 01/2004 - 04/2007
• VW Crafter I (2EC/2EK/2F) 03/2006 - 07/2011
• VW Crafter I (2EC/2EK/2F) 07/2011 - 11/2016 

The following signals are provided

Reimported vehicles or vehicles with different software may be functionally incompatible.

red: +12V ignition terminal 15
orange: +12V lighting terminal 58
purple/white: +12V reversing signal
pink: speed signal
green: ground GND handbrake signal

Output load capacity: 250 mA max.

Current requirement greater than 250 mA:
1 relay coil resistance 75 Ohm min.
2 relay coil resistance 150 Ohm min.

Steering wheel remote control

General installation instructions

Verification:
1: Check all operating functions and vehicle setting functions of the OEM device
2: Disassemble the OEM device without voltage.
3: Check all interface connections for correctness and continuity without voltage.

Connection and connection sequence:
1: Make the settings and hardware configuration of the interface without voltage.
2: Check the configuration of the radio connection cable.
3: Connect the radio connection cable according to the operating instructions for the retrofit device.
4: Connect all other connections according to the operating instructions for the retrofit device.
5: Connect the entire installation to the vehicle with a live connection last.
6: Configure the software of the interface according to the instructions in the article text and in the user manual.
7: Configure the retrofit device according to the operating instructions for the retrofit device, steering wheel remote control/camera/HFS/antenna phantom power, and others.
8: Function test of the steering wheel remote control and vehicle.

Changes to the hardware configuration of the interface and the radio connection cable:
1: Changes Carry out the connection in a voltage-free manner.
2: Connection after modification, see above 5 to 8.

In case of malfunction of the interface or the vehicle:
1: Revert to the OEM device.
2: Operate the OEM device.
3: Establish CAN bus rest.
4: Check the hardware configuration of the interface.
5: Connection after CAN bus rest, see above 5 to 8.

Connections, connection changes, alternative connections, connections of loose cables or connection extensions of loose cables specified in the information text or the operating instructions are for guidance and information purposes only for trained specialist personnel.

Further connections, changes to the cable configuration of the wiring harness or the use of alternative connections or connection extensions:
1: Connections and modifications are to be carried out exclusively by trained specialist personnel.
2: Connections and modifications are to be checked before connection for any manufacturer approvals or manufacturer warranty conditions that may be affected by the changes.
3: Connections and modifications are to be confirmed before connection by measuring and Check for functionality and accuracy by comparing it with the vehicle's wiring diagram.
4: Connections and modifications are made at your own risk and without any guarantee of functionality.
5: Connections and modifications are made at your own risk and without any guarantee of damage to the vehicle, the retrofit device, or the interface.
6: Modifications to the pre-assembled wiring harness may void the product's warranty.