How to test Mercedes Benz secondary air system?
The secondary air system is prone to faults that illuminate the check engine light. If you have fault codes for your secondary air, check the operation of the pump. You can test the function of the secondary air components using a Mercedes-Benz scan tool.
Where is the secondary air pump in a Mercedes Benz?
Secondary air pump testing: The secondary air pump is located at the front of the engine (green arrow). Secondary air pump testing: Disconnect the air pipe. Start by removing the pipe from the secondary air pump. Start the engine, (it should be cold).
How to replace a secondary air injection pump?
Step 1: Locate the air injection pump. The air pump is at the front of the engine with the serpentine belt wrapped around it. Tip: Make sure there is a belt routing diagram under the hood of your car so you know how to reinstall the belt. If not, take a picture of the belt routing with your phone before proceeding further.
Where is the secondary air solenoid located on a Mercedes Benz?
The secondary air solenoid is located at the right front of the engine (red arrow). Working at the engine cover (red arrow), pull off the two front air duct hoses (green arrows). To detach the ducts, pull them straight off the engine cover / air filter housing.
The secondary air system is prone to faults that illuminate the check engine light. If you have fault codes for your secondary air, check the operation of the pump. You can test the function of the secondary air components using a Mercedes-Benz scan tool.
Secondary air pump testing: The secondary air pump is located at the front of the engine (green arrow). Secondary air pump testing: Disconnect the air pipe. Start by removing the pipe from the secondary air pump. Start the engine, (it should be cold).
The secondary air solenoid is located at the right front of the engine (red arrow). Working at the engine cover (red arrow), pull off the two front air duct hoses (green arrows). To detach the ducts, pull them straight off the engine cover / air filter housing.
What is the code for secondary air injection?
Most of them have the same setup. This repair was to resolve a check engine light giving code P0410 – secondary air injection malfunction. The beginning of the video, I explain background on how I knew this was the necessary repair in this case (P0410 is a general code which may be triggered by various causes). This is a common Mercedes problem.
What is the star diagnostic tool for Mercedes Benz?
Mercedes Star Diagnostic Tool and Software. Let’s first explain what Star Diagnostic SD (C3 or C4 SD Connect) tool is for those who may be wondering. This is the diagnostic scanner that is used at Mercedes-Benz dealerships and some auto repair shops. It can also be purchased by independent shops.
Can you do SCN coding on Mercedes star scanner?
SCN Online Coding: Unless you buy the scanner from the official Mercedes-Benz source, you will not be able to perform SCN coding of control units. That’s because Mercedes Star Diagnostic scanner will try to connect to Mercedes-Benz database for verification of SCN code in order to program certain control units.
Where is the ECM located in a Mercedes Benz?
The ME-SFI engine control module (ECM) is at the right rear of the engine compartment. ECM inputs include: The electrically operated fuel pump and the integrated fuel pressure regulator are located underneath the vehicle, to the right and forward of the fuel tank.
Mercedes Star Diagnostic Tool and Software. Let’s first explain what Star Diagnostic SD (C3 or C4 SD Connect) tool is for those who may be wondering. This is the diagnostic scanner that is used at Mercedes-Benz dealerships and some auto repair shops. It can also be purchased by independent shops.
SCN Online Coding: Unless you buy the scanner from the official Mercedes-Benz source, you will not be able to perform SCN coding of control units. That’s because Mercedes Star Diagnostic scanner will try to connect to Mercedes-Benz database for verification of SCN code in order to program certain control units.
The ME-SFI engine control module (ECM) is at the right rear of the engine compartment. ECM inputs include: The electrically operated fuel pump and the integrated fuel pressure regulator are located underneath the vehicle, to the right and forward of the fuel tank.
How does the Mercedes Benz engine management system work?
OBD II software and hardware, integrated fully in the engine and engine management, monitors components that influence exhaust and evaporative emissions from the vehicle. Diagnostic trouble codes (DTCs) are generated and stored in the ECM whenever a problem with a component or system is detected.