Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
HiCustomer I can answer all of those questions for you but first can you tell me why you think it's a neutral safety switch problem? What are the symptoms?
Ok Tim, it's a mechanical switch on the driver's side of the transmission. If you swipe the shifter back and forth a few times and try starting it in neutral you might get lucky. As long as the linkage is still attached there is a plastic driver that may have broken on the switch itself. We can hot wire the starter directly from under the hood or we can do some testing at the neutral safety switch. We probably should start with the starter. You'll need a test light or a jumper wire. The starter is located at the lower right rear of the engine. Take a look and see if you can access the solenoid easily enough.
Hi Tim, there's no connector on the harness underneath the car. It's just straight to the switch on the driver's side of the transmission. You can jump the starter from the big cable on the starter to the little wire on the starter. Leave the key off so it doesn't start yet. You just want to make sure it works right now. If it works let me know and I'll help you further with the diagnosis.
No problem Tim, you'll want to jack up the left side of the car behind the front wheel. Make sure you use a jack stand! The neutral safety switch is just above the transmission pan about halfway back. It would be about in line with where your right knee would rest in the car, directly below at the center.
Thanks Tim, if you get nothing when you connect battery positive to the small wire at the starter then you have a bad solenoid or maybe a frozen solenoid?? If you have a voltmeter we can check power at the little wire when holding the key to start to be sure or you could try lightly tapping on the solenoid to see if it frees up.
That's great Tim. I'm glad you got it going. Let me know if you need anything else.