[marahekyser]

Mercedes 2006 c280 cranking issues. Take at least 3 times before it finally cranks up properly. Turn key over and just makes the regular starting sound but not complete crank, 2nd time is the same, 3rd time sounds as it cranked completely but when you press gas it will shut off, 4th time you get a complete crank and ready to drive. Already been replaced items are
Fuel pump and filter
Crank sensor
All spark plugs
Crank shaft sensor
And possibly one other thing!
I’m leaning towards the ignition switch now???
Please help!

 

[Car Hamro]

If you're having cranking issues with your Mercedes c280, it could be a few different things. First, check the battery to see if it's fully charged. If not, charge it or replace it. Next, check the starter motor and make sure it's getting power. If not, you may need to replace it. Finally, check the engine itself to see if there are any mechanical issues that could be causing the problem. If everything looks good there, then it's likely an electrical issue and you'll need to consult a professional to figure out the cause.