Question about Mercedes-Benz S-Class
If an O2 sensor fails or provides a bad signal, it's caught by comparing the pre-cat O2 to the post-cat O2 and throws a code.Get confirmed if O2 sensors are connected proper and its not getting warm up after starting the car.
Posted on Aug 30, 2010
The 2001 Mercedes s600 mounts 4 standard 4 wires oxygen sensor.
The color code of the wiring may change depending on the brand of the sensors mounted. Mercedes mounts by factory Bosch sensors.
Here the original color codes for factory sensors:
SIGNAL : Black
GROUND : Gray
HEATER (Ignition switched +12) : White
HEATER (Gnd) :White
The most important wire for testing purpose is Signal, this determines the sensors' output.
If colors are different, simply found out ground wire with a multimeter, the two heater wires have usually same color code.
If you are re-wiring, the heater contacts can be exchanged, the heater works the same in both ways.
In case the car is mounting a different sensor, here wiring diagram for sensors from different manufacturer. If this satisfies the query, please do not forget to accept the solution.
Posted on Aug 29, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 22, 2016 | Mercedes-Benz S-Class Cars & Trucks
Feb 06, 2014 | Mercedes-Benz Cars & Trucks
Nov 28, 2013 | 1997 Mercedes-Benz C-Class
Apr 29, 2012 | Mercedes-Benz S-Class Cars & Trucks
Nov 04, 2010 | Mercedes-Benz S-Class Cars & Trucks
Aug 30, 2010 | 2001 Mercedes-Benz S-Class
Jul 19, 2010 | 2001 Mercedes-Benz C-Class
Jul 16, 2009 | 2002 Mercedes-Benz S-Class
338 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: