84 W123 diesel start issues - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 07-15-2013, 12:02 PM Thread Starter
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Date registered: Jun 2013
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Exclamation 84 W123 diesel start issues

I recently purchased a 1984 W123. When I bought the car, the seller said that sometimes it doesn't start and he uses a needle nose pliers to jump the car via 2 screws near the battery. I have not had any start issues until last night when I went to start the car and after letting the glow plugs warm up, I turned the key and all power shut off. I went to perform the pliers trick and when I touched the battery cable, the alarm went off. Turned the key, still no power. However, when I shut the door or the hood, the electricity comes back on and the dash lights up. I'm still new to diesels and MB and don't have any idea where to start troubleshooting. Tried jumping the car with another vehicle and nothing.
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post #2 of 3 (permalink) Old 07-17-2013, 07:54 AM
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Proceed to the W123 forum. Dieselheads everywhere!

Felicita e un bicchiere di vino con un panino.
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post #3 of 3 (permalink) Old 07-18-2013, 05:15 AM
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Its better to change the battery if its creating problem while it starts. Diesel cars require good maintenance and if you want better mileage and performance from your diesel vehicle than you have to take car of its parts.
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