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The BMW Range
5 Series
E34
Weird E34 temperature incident!
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<blockquote data-quote="bimmerman" data-source="post: 101480" data-attributes="member: 126"><p>Ok guys! It's fixed. What was the actual problem?</p><p></p><p>Air in the coolant? Nope. I wish it was. Would have been so much cheaper.</p><p></p><p>Broken temperature switch? Nope! Temperature at radiator was so cool it never even needed to trigger the aux fan.</p><p></p><p>Fan cluch then? Well, my fan clutch was slow but still sucking enough air through the radiators.</p><p></p><p>Water pump then? No it was not the water pump. These water pumps with metal impellars really seem to last forever until they leak. Mine had no leaks whatsoever.</p><p></p><p>It's the freakin thermostat!!! Yup, it was a sticky thermostat refusing to open when needed and the radiator also had a very minor leak which could get worse so I changed it anyway.</p><p></p><p>Here's the damage:</p><p></p><p>Thermostat - RM30</p><p>Thermal switch for aux fan - RM75</p><p>Viscous fan clutch - RM250</p><p>Water pump - RM370 (metal impellar)</p><p>Radiator (BEHR) - RM700</p><p></p><p>Workmanship - RM100 including battery water for the radiator.</p><p></p><p>As you can see, the original waterpump is still in good shape but whay the heck, I get peace of mind. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="bimmerman, post: 101480, member: 126"] Ok guys! It's fixed. What was the actual problem? Air in the coolant? Nope. I wish it was. Would have been so much cheaper. Broken temperature switch? Nope! Temperature at radiator was so cool it never even needed to trigger the aux fan. Fan cluch then? Well, my fan clutch was slow but still sucking enough air through the radiators. Water pump then? No it was not the water pump. These water pumps with metal impellars really seem to last forever until they leak. Mine had no leaks whatsoever. It's the freakin thermostat!!! Yup, it was a sticky thermostat refusing to open when needed and the radiator also had a very minor leak which could get worse so I changed it anyway. Here's the damage: Thermostat - RM30 Thermal switch for aux fan - RM75 Viscous fan clutch - RM250 Water pump - RM370 (metal impellar) Radiator (BEHR) - RM700 Workmanship - RM100 including battery water for the radiator. As you can see, the original waterpump is still in good shape but whay the heck, I get peace of mind. :D [/QUOTE]
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Weird E34 temperature incident!
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