How do you read Mercedes fault codes?
Go to Mercedes > Select Model. Go to Auto Scan. Allow the scanner to go through all the systems and determine fault codes stored on each one. This will take a few minutes.
How do you clear a Mercedes fault code?
The first way to reset a check engine light on your Mercedes-Benz is with a scanner. If you have one, simply plug it in, read the related codes, and press “clear” or “reset.” So long as the code issue has been resolved, it should go off.
What Mercedes engine do I have?
Open the bonnet of your Mercedes. Locate the stamped engine ID number on the top or side of the engine block, towards the rear of the engine. Write down the letter or letters that begin the engine ID number. These letters indicate the style of motor (sedan, touring, roadster and so on) installed.
How do I know what model my Mercedes is?
To find your Mercedes VIN, look for it printed on the car:
- Behind the windshield on the driver’s side of the dashboard. This is the first place to look.
- Driver’s side door jamb.
- Engine block.
- Vehicle registration and insurance certificates also often carry the VIN.
Are there any fault codes for Mercedes Benz?
This is the complete list of Mercedes Benz fault codes. If you are working on a Mercedes-Benz engine and need more information we have factory printed manuals available at the links below:
What are the MR codes for Mercedes trucks?
MR 3707 – The SCR compressed air on valve has a short to positive. MR 3709 – The SCR compressed air activation valve has an electrical circuit break. MR 3817 – The measured values of the temperature sensors on the catalyst are unreliable. MR 3906 – AdBlue pump has a short to ground. MR 3907 – AdBlue pump has a short to positive.
How many control units does a Mercedes Benz have?
There are also codes for other control units such as transmission, ABS, SRS, ESP, 4ETS, airbag, A/C. Mercedes-Benz can have up to 47 control units. You can NOT diagnose them with a simple OBD-2 scanner. To read these systems and their fault codes or erase them from your Mercedes-Benz you need more advanced OBD-II scanners.
What is the PSM code for a Mercedes truck?
2420 Excited “Output” (Contact X4 18/13) has a short to ground. The “Reverse gear engaged” output (Pin X4 18/9) has a short to positive or open circuit. 3220 Kick-down output (Pin X4 18/11) has a short to ground. 6340 Start Trigger Input (X2 18/9) has a short to ground.