Installation instructions for Mercedes

Seat occupancy sensor emulator installation is very easy. Just follow the instructions below:

1. Before fitting the emulator, turn the ignition off.

2. Fit the device in place of the seat occupancy sensor. Cars for European market have mats with 3 wires:

  • white: signal
  • red: +12V
  • brown: GND

The device has wires with the same colours.

3. If the emulator is equipped with the plug, it’s enough to remove the mat plug and fit the device in that place. If the emulator is not equipped with the plug, replace the wires in the plug - white for white, red for red and brown for brown.

For some cars we have neither plugs nor original pins. In such a situation it is necessary to use special connectors or solder wires.

 

The next step is fitting the seat belt emulator.seat belt fastener

1.  Before fitting the emulator, turn the ignition off.

2. Fit the device in place of the seat belt buckle. There are 2 wires,   usually blue and yellow. Sometimes there can be another colours.           In case of any problems with finding the correct plug, find the wire       that comes from the seat belt buckle and follow it to the right plug.

Attention! Do not confuse the seat belt buckle’s wires with the seat belt tensioner’s wires!!!

 

 

BELOW YOU CAN FIND SOME PICTURES OF MAT CONNECTORS FROM DIFFERENT MERCEDES MODELS.

Attention! We are not able to make pictures of plugs in all models of cars. If there are no photographs of plugs from your car, you can make such photos for us. For good quality photos that we can use in the instructions we are about to give a partial refund of the purchase - more information at: contact@blshop24.com, please write ”photos for instructions” and a model of the car in the mail subject.

Wiring diagram for 3 pin mat connector and 2 pin seat belt connector:

Widing diagram mercedes occupancy sensor

 

 Scroll down or click on car model:

• A-Class: W168

• B-Class: W245 2004+ (2-wired mat) - it looks the same on A Class W169 with 2 wired mat

• B-Class: W246 (3-wired mat: blue, brown, black)

• C-Class: W203 2000-2005

 W203 2005-2007

- mat connectors comparison on W203 models - click to see 

 W204 2007-2014

• CLK-Class: W208 W208 1997-2002

• S-Class: W220 

• E-Class: W210 1995-2003 and W211 2002-2003 and W211 2003-2009 and W211 2005+ USA

• ML-Class: W163

• ML-Class: W164

• R-Class: W251

• SLK-Class: R171

• Vito: W638

• Viano: W639


 

 A-Class: W168

seat occupanncy sensor plug_w168

seat occupancy sensor wires_w168

seat occupancy sensor emulator w168

 go top to car models list                                       

 B-Class: W245 (2-wired mat)

seat occupanncy sensor plug_w245

seat occupanncy sensor plug_w245

 go top to car models list                                       

 B-Class: W246

The seat occupancy sensor has different wires colours than earlier Mercedes models - blue, brown, black.

Our emulator has wires: red, brown, white. To connect the emulator you should exchange wires in the mat connector in line with the scheme below:

Brown - brown - "GND"
Black - red - "+12V"
Blue - white - signal

seat occupanncy sensor plug_w246

seat occupanncy sensor plug_w246

seat occupanncy sensor plug_w245
Our seat occupancy sensor emulator connector and wires


Seat occupancy sensor connector from a car

 go top to car models list                                       

C-Class: W203 2000-2005

The view from the front of the seat (the car side wires).

seat occupancy sensor wires w203

 The view from the back side of the seat (seat side wires - the mat: white, red, brown and the seat belt: yellow, blue).

seat occupancy sensor wires w203

 go top to car models list                                       

 C-Class: W203 2005-2007

The view from the front of the seat. On the right there’s the seat belt plug, on the left - the seat occupancy sensor plug.

w203 seat occupancy sensor plug

 

w203 seat occupancy  and seat belt plugs

w203 wires

 go top to car models list                                         

 C-Class: W204

The view from the back side of the seat. The first plug on the left is the seat occupancy sensor plug. The first on the right - the seat belt plug.

w204 seat occupancy sensor wires

 go top to car models list                                       

 CLK-Class: W208 1997-2002

On the left there is a seat belt buckle plug, on the right - the seat occupancy sensor plug.

w208 seat occupancy sensor plug

w208 seat occupancy sensor wires

 go top to car models list                                       

 ML-Class: W163

W163 seat occupancy sensor wires

 go top to car models list                                       

 ML-Class: W164

The view from the back side of the seat. The first yellow plug on the left is the seat occupancy sensor plug.

W164 seat occupancy sensor plug

The view from the front of the seat.

W164 seat occupancy sensor wires

The seat belt plug is placed in the back side of the seat. Wires: yellow, blue.

W164 seat belt plug

 go top to car models list                                       

 S-Class: W220

The view from the back side of the seat. The first plug on the left is the seat belt plug, the second one from the left is the seat occupancy sensor plug.

w220 plugs

w220 seat occupancy sensor wires

 go top to car models list                                       

 E-Class: W210 1995-2003

The first plug on the left (yellow) is the seat mat plug. On the other side of this connection, wires colors are: red, white, brown

W210 1995-2003 seat occupancy sensor emulator

 E-Class: W211 2002-2003

The view from the front side of the seat. 

W211 2002-2003 seat occupancy sensor emulator

w211 seat occupancy sensor plug

 go top to car models list                                        

E-Class: W211 2003-2009

The view from the back side of the seat. The first plug on the left is the seat occupancy sensor plug. The first on the right - the seat belt plug.

w211 seat occupancy sensor wires

 go top to car models list                                       

E-Class: W211 2005+ USA

The installation is very similar to the above W211 model with 3-wired mat, the only difference is that this one has 4-wired mat.

w211 seat occupancy sensor wires

 go top to car models list                                       

 R-Class

The view from the back side of the seat. The first yellow plug from the left is the seat occupancy sensor plug.

 r-class seat occupancy sensor plug

The view from the front of the seat.

r-class seat occupancy sensor wires

The seat belt plug is placed in the back side of the seat. Wires: yellow, blue.

r-class seat belt plug

 go top to car models list                                       

SLK-Class: R171

SLK-R171 looping

Seat belt plug with a seat belt emulator installed.

SLK R171 seat belt plug

 go top to car models list                                        

 Vito: W638 1995-2003

vito w638 seat occupancy sensor connection

 go top to car models list                                        

 Viano: W639

 viano w639 seat occupancy sensor plug

viano w639 seat occupancy sensor plug

viano w639 seat occupancy sensor plug

viano w639 seat occupancy sensor plug

viano w639 seat occupancy sensor plug

viano w639 seat occupancy sensor installation

 go top to car models list                                       

 

up
Shop is in view mode
View full version of the site
Click Shop | Hosting home.pl