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<blockquote data-quote="Tor" data-source="post: 598977" data-attributes="member: 21887"><p>Ok, A 525 1981 is most likely a 525i (another word a fuel injected). The engine is (if original) a M30 engine. <a href="http://en.wikipedia.org/wiki/BMW_M30" target="_blank">http://en.wikipedia.org/wiki/BMW_M30</a></p><p></p><p>The problem that i had with the same engine, was that a temperature-sensor to the warm-up regulator had stopped working, so the engine could not get enough gasoline when it was cold. When engine was warm it had no problems. </p><p>Try to borrow that sensor (a plug that is situated on the engine block) from another BMW for troubbleshooting, as these sensors are fairly expencive.</p></blockquote><p></p>
[QUOTE="Tor, post: 598977, member: 21887"] Ok, A 525 1981 is most likely a 525i (another word a fuel injected). The engine is (if original) a M30 engine. [URL="http://en.wikipedia.org/wiki/BMW_M30"]http://en.wikipedia.org/wiki/BMW_M30[/URL] The problem that i had with the same engine, was that a temperature-sensor to the warm-up regulator had stopped working, so the engine could not get enough gasoline when it was cold. When engine was warm it had no problems. Try to borrow that sensor (a plug that is situated on the engine block) from another BMW for troubbleshooting, as these sensors are fairly expencive. [/QUOTE]
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