the engine of the vehicle was not starting?

2001 MERCEDES BENZ C180
354,356 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
Avatar
BLESSING EWOBOR
  • MEMBER
  • 753 POSTS
Hello, the engine of the vehicle was not starting, after diagnosis it was observed that the insulator on the wire harness was bad. The harness had been replaced but it seems that some connections are not right somewhere.
Could I get the circuit diagram of the engine?
Thank you very much.
Nov 19, 2024 at 11:15 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
I would find out if you are missing fuel or spark.

Here is a video that should help:

https://www.youtube.com/watch?v=lXLJbuAZ4CE&t

Here is a guide to help with the wiring testing and I have included the engine wiring diagrams as requested. Check out the images (below). Please let us know what happens.
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Nov 19, 2024 at 1:45 PM
Advertisement
Avatar
BLESSING EWOBOR
  • MEMBER
  • 753 POSTS
Thank you very much.

From the diagram that was sent, it seems that it is different from what I have here (on the vehicle). Fuel injectors 1 and 2 share the same signal wires, fuel injectors 3 and 4 share the same signal wire but from the diagram sent (Y62), each fuel injector has individual signal wires from the ECU. It is that someone has worked on the connections before now or that is how it supposed to be on the vehicle?
Nov 19, 2024 at 8:26 PM
Avatar
BLESSING EWOBOR
  • MEMBER
  • 753 POSTS
The vehicle looks like this.
Image (Click to enlarge)
Attached Media
Nov 19, 2024 at 8:32 PM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Yep, you don't have the c180 in the states we have the c230 which is as close as I can get for the engine wiring diagrams. Will it run on starting fluid? Please go over this video to help you see what we are missing to have the engine run:

https://www.youtube.com/watch?v=lXLJbuAZ4CE

Please upload pictures or videos in your response of any problems so we can see what to help you with.
Nov 21, 2024 at 10:07 AM
Avatar
BLESSING EWOBOR
  • MEMBER
  • 753 POSTS
Thank you.
Nov 22, 2024 at 5:33 PM