Question about 1997 BMW 318

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When I switch on the ignition sometimes the 318ti ,1998 don't start. The starting motor turns over but the radiator fan does not turn. the starting motor does not click in. someone told me that it may be the selonid switch needs chainging. can you tell me something about this

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The solenoid sends power to engage the starter to turn the engine. Also the starter may not be kicking out to start all the time. Either way these two are usually connected together and will be together when you purchase a new starter. The fans turn on after your car reaches a certain temp, to cool the radiator down. It's not like the older cars that turn all the time with a belt pulley system. Newer cars have relays and sensors that signal "getting hot, turn fans on".

Posted on May 09, 2010


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One thing I can think of that will do that, is if some one wire your radiator elec. fan motor direct where it runs all the time, the fan motor will act like a alternator, where it will put voltage out to the ignition system, and till it stops spinning it will power the engine elec. system, one way to check is disconnect the cooling fan elec. plug (harness) and start the engine, if it turn off right away that your problem.

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