92 hits..no responses? c'mon...need help! - Mercedes-Benz Forum

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post #1 of 35 (permalink) Old 08-13-2013, 07:47 AM Thread Starter
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92 hits..no responses? c'mon...need help!

So im a single mom with 4 kids and limited funds...change my own oil, brakes and even installed a master cylinder! But I don't know where to begin with this starting problem...doesn't seem like ignition or starter, but I don't know. please see my previous post...someone has to have an idea out there! this is (foolishly maybe) my only car!
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post #2 of 35 (permalink) Old 08-13-2013, 08:38 AM
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First things first. Clean all battery terminals. Don't just look at them and say,"Looks clean to me". Pull the terminals off and clean them. Check the ground strap for corrosion where it meets the body. Inspect the cables for internal swelling or bumps which are signs of hidden corrosion.

Check the terminal end leading down to the starter.
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post #3 of 35 (permalink) Old 08-13-2013, 08:42 AM Thread Starter
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starting problem

this is an intermittent problem, and car starts right up if I push it for a few tire rotations...would battery corrosion cause that? thankyou so much for responding!
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post #4 of 35 (permalink) Old 08-13-2013, 09:07 AM
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It certainly can and without eliminating causes in order you are just chasing your tail.

It is much better to say, "I KNOW it isn't the cables" than to say, "I'm pretty sure it isn't the cables".

Last edited by Mike D; 08-13-2013 at 09:10 AM.
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post #5 of 35 (permalink) Old 08-13-2013, 09:20 AM
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Is this a gray-market import or an aftermarket manual conversion? Obviously, most W123 5-cylinder diesels in this country are automatics ... in which case you might check the neutral safety switch (it keeps the car from starting in gear). They're a common failure point on US market diesels. I'm not sure if your car has one. Look at this thread.
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post #6 of 35 (permalink) Old 08-13-2013, 09:23 AM
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post #7 of 35 (permalink) Old 08-13-2013, 12:33 PM
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Can a mod combine these threads and put them in the w123 area?

Starter sounds like the issue but if this is a 5 speed.... Not a 4 plus reverse...it is really rare but I suspect someone did a manual conversation....if this is the case, what did they do with the neutral safety switch?

As was said, have the battery tested at an auto parts store...

Check the cables, I would suggest upgrading to thicker wires....

Then move to the starter and replace it....
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post #8 of 35 (permalink) Old 08-13-2013, 02:44 PM Thread Starter
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starter problem

Quote:
Originally Posted by Mr._Graybeard View Post
Is this a gray-market import or an aftermarket manual conversion? Obviously, most W123 5-cylinder diesels in this country are automatics ... in which case you might check the neutral safety switch (it keeps the car from starting in gear). They're a common failure point on US market diesels. I'm not sure if your car has one. Look at this thread.
I am so thankful that u guys r helping!
okay...yes, its got a 5 speed, plus reverse... a mechanic who looked at it a few months ago said the transmission was worth almost as much as the car. It was origionally an automatic, but someone converted it...5 speed was imported from Europe and installed...what is a neutral safety switch and where do I find it and how do I know if it is bad? will absolutely check cables, and will also look at the site you left info on.
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post #9 of 35 (permalink) Old 08-13-2013, 02:48 PM Thread Starter
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Actually, I don't know for sure if this was an automatic to begin with...I am assuming, because it does not have a tach, and im pretty sure that if it was produced as a 5speed to begin with, it would have a tach, right?
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post #10 of 35 (permalink) Old 08-13-2013, 02:54 PM Thread Starter
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Okay, I just read that thread that Mr. Greybeard sent, and I don't think I have a neutral safety switch, or maybe its bad or something, because one of the things the mechanic had to "fix" on the car was install a toggle switch for back up lights because I didn't have any. Does that make sense? So, do I NEED a neutral safety switch, and could that be the problem?
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