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I have a 1984 300D turbo diesel with 250000 miles on it.<br>
Here is my problem<br>
last night i left my lights on for about a 1/2 hour - 1 hour to see what i was doing in the dark. My battery died (shoulda known it would) and got it jumped, started up ok and let it run for almost a 1/2 hour then turned it off. I then re started it and drove for 10 min. When i went to start it again it would turn at all. I got it jumped and the engine started but the brake light, battery light and the gas reserve light stayed on after the engine started. Also all the lights including headlights were very dim. Once i couldnt get it started again so i figured the battery just couldnt hold a charge and got a new one. Now it starts no problem and every thing is fine but, the brake pad light , gas reserve light and battery light still stay on once the engine starts. They dim slightly when the Rpms increase but they are still on. Any ideas? A loose belt or bad altenator?<br>
Incidentally, i dont know if this is related or not but, when i put the ignition in the 2 position before i start the engine the heater fan blows but once i start the engine it stops. If i jiggle the key once the engine starts the heater fan kicks on. Im guessing the ignition is iffy. Or are the two problems related?<br>
Thanks for any help you can provide.<br>
Mike
 

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ok u have a new batt, make sure that the terminals are covered with distilled water.<br> <br> get a jumper and take it straight to the mecanic.<br> <br> get them to test the output of the altenator should be around 30 to 35<br> <br> it weired but about 3 weeks ago, after about 3hrs of coninueous driving, i stoped the car to check the post box and the batt was dead flat. starter didnt even flinch. had the output of the altenator checked it was fine.<br> didnt get the batt charged just drove it for about 20mins no problems since.<br> <br> it is a freak thing but a batt can go dead flat if there is a lot of static in the air or if lightning hitst the car.<br> <br> one other poss could be the glow plugs are comming onn without you knowing.<br> <br> while your driving- keep lookinh down to see ig the light may come on<br> <br> when the key is in the first position - that they arnt comming on then<br> <br> when starting the car- that they do not stay on for too long<br> <br> the glowing process takes alot of power, if you are driving and the altenator is sending the batt a max of 35amp and the glow plugs come on at 70amp there isnt any chance of keeping up with demand. the batt would go falt in a matter of minutes.<br> <br> also , if u have the head lights, the aircon to the max, the cooling fan on, the radio and cd playing and demister, all on at once it can amount to about 5amps of draniage which means you are using all power comming from the altinator plus any stored in the batt. can take an hour or so to flatten the batt that way.<br> <br> some poss reasions.<br> <br> good luck <br> <br> louis
 
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