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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53016
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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2010 mercedes c300 4matic wont start. remote seems to work

Customer Question

2010 mercedes c300 4matic wont start. remote seems to work as it locks and unlocks door but it wont start the engine. Trying to determine if it is a battery problem?
JA: Does the engine turn over? How old is the battery?
Customer: it does not turn over - no sound at all and very dim dash lights Bettery is 6 years old - only 41,000 miles on the car
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Just troubleshooting to see if it needs to go in for service. Also, not sure where the battery is?
JA: Anything else you think the mechanic should know?
Customer: no?
Submitted: 3 months ago.
Category: Mercedes
Expert:  Marty replied 3 months ago.

Hi, my name is***** definitely sounds like a bad battery. I would try a jump start or have your battery charged and tested. The battery is located under the hood on the passenger side below the cabin air filter duct. You just need to unclip the duct and move it out of the way to access the battery. Let me know how you make out.