Question Details

My car wont start most of the time after pushing the start button but has new batteries in smart key and everything functioning

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MBFanatic  1 year 5 months ago

The key that you are using could very well be defective. I would try a second key and see if that is still having intermittent start issues.

Also I would double check the batteries that you installed. Test them with a voltmeter. Do you know what the expiration date was on those batteries. You may be surprised to find out that they are discharged. It can happened.