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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 12-27-2008, 12:32 PM   #1 (permalink)
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fuel system

Ok guys and gals this is probably a stupid question but i need to make sure. Sometimes my car starts and then doesnt. I hear a click under the hood when i turn the key on and it starts. If i dont hear the click it doesnt start. So my question is can i rule out the fuel pump and guess its the fuel pump relay ????
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Old 12-27-2008, 01:13 PM   #2 (permalink)
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I would say its the starter motor.
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Old 12-27-2008, 04:34 PM   #3 (permalink)
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no its not the starter motor. The engine cranks and will fire with ether but wont run unless i hear the click when i turn the key to on, not start.
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Old 02-19-2009, 03:04 AM   #4 (permalink)
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It is problebly the Starter Solinoid...Take apart and clean real good-or-buy replacement for less than$100.00.Eventually you'll be tapping on your starter/solinoid to get her to turn-over...Although I did have one that finally came around on its own and never did have that issue again-the rule of thumb is to repair/replace solonoid.
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Old 02-19-2009, 03:21 AM   #5 (permalink)
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i know this is probly a dumb answer but are ur battery terminals tight? An is ur earth wire connectd?
I had a simular prob thort it was starter motor but it end'd up being the earth wire was loose the bolt had fallen off an it was just hanging there
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Old 02-20-2009, 01:42 PM   #6 (permalink)
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Sounds like the Main/DME relay going bad. The 3 relays in a row on the drivers side of the engine compartment it is the one closest to the front of the car, PN 61 36 1 729 004 Another problem this relay will cause is the car will randomly die while driving down the road.
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Old 02-20-2009, 03:35 PM   #7 (permalink)
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The click you are hearing is the starter solenoid.

it's what you're actually energizing when you push the key to the start position, it closes a contact like a magnet, that have 2 terminals on it. 1 comes from the batter Positive post and the other goes to the starter.

If that solenoid doesn't click power doesn't go to the starter, simple as that.

You just need a new solenoid, hopefully yours is servicable. Good luck.
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