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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3567
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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I have a 2009 c300 and I'm having a problem with starting my

Customer Question

I have a 2009 c300 and I'm having a problem with starting my car
JA: Will the headlights turn on? Is the battery fully charged?
Customer: Yes I just replaced the battery two days ago and still nothibg
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: No just want to diagbose
JA: Anything else you think the mechanic should know?
Customer: If I try to start the car it takes forever and if I turn it off and turn it back on without taking the key out it starts with no problem once I get it started but if I take the key out its back to square one
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mercedes Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Mercedes
Expert:  Chad Farhat replied 1 year ago.

Hi, I' m Chad. Welcome to JustAnswer. I' m reviewing your question now, and I will be post back with your reply ASAP

Expert:  Chad Farhat replied 1 year ago.

is there a red security light blinking on dash or steady on when you try to start and it want start ?

do you have one or 2 keys for vehicle ?

did this starting problem occur after the battery died and you replaced it ?

please let me know

Thank You
Chad Farhat
ASE Certified Technician