Mercedes won't start or crank Issue Video Included. No ignition spark C280 Please HELP SOLVE

DAVIDSMTL

MEMBER
2006 MERCEDES BENZ C280
3.2L
V6
2WD
AUTOMATIC
95,000 MILES

Benz Experts

I'm having a huge issue with my C280 Luxury 2006.
Here is a 2min video of the issue

https://youtu.be/rrgfY6W0Z9U

It won't crank or start at all. As soon as I put the key into the 3rd ignition position. The car wont crank BUT the COOLER FAN is sounding LOUD like a Jet Turbine.

I did the following changes:
1. Checked and Boosted the Battery
2. Fully charged the battery for 45mins at advanced auto parts
3. Checked all fuses and replaced any that had issues
4. Replaced Fuse 52 for a new 20amp one
5. Checked ignition relays and put new Siemens relays.
6. I don't know what else to do

I took it to the Dealership for a mercedes recall on the sunroof that was detaching and not working. They took 4 hours to work on my car. They said they needed some glue. I took it back from the dealership for the 14 mile drive.

Since then the car won't turn on at all.

Please all your help is appreciated.

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

In this case, I really feel it would be a good idea to scan the CAN bus system. This would identify any faults on the vehicle. Here is a video that shows how it's done:

https://youtu.be/InIlnsjOVFA

Also, I attached a pic below. It shows the starting system wiring schematic. Have you checked the fuses/relay in the pic? If you look at pic 2, it shows location in the under hood fuse box. In addition to checking the fuse, confirm there is power in and out from it. Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know if this helps or if you have other questions.

Take care,
Joe

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