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<blockquote data-quote="maxxsp" data-source="post: 674268" data-attributes="member: 4808"><p>Update: Although the problem with the aux fan running at full speed was solved, the problem with the climbing temp still remained. Decided to bite the bullet and do a complete cooling system overhaul. Also changed the belts while the radiator was off. As usual, thanks to e34_lover for helping me with this DIY.</p><p></p><p>The following parts/consumables were changed:</p><p></p><p>- New (remanufactured) Water Pump</p><p>- Water Pump Gasket & O-Rings</p><p>- Genuine BMW E46 M3 radiator</p><p>- Genuine BMW Coolant</p><p>- Genuine BMW Engine Block Coolant Sensor</p><p>- Febi OEM Fan Clutch</p><p>- Continental OEM Belts</p><p></p><p>Before.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/002-1_zps84ce61db.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/002-1_zps84ce61db.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Fan shroud off.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/004-1_zpsc764b91a.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/004-1_zpsc764b91a.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>All shrouds removed.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/006-1_zpscd13e306.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/006-1_zpscd13e306.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Old fan clutch - FILTHY</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/005-2_zps7f982e07.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/005-2_zps7f982e07.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Cleaned the fan blades & water pump pulley.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/016_zps7fbc39ad.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/016_zps7fbc39ad.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>New Febi fan clutch.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/001-2_zps0359dac1.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/001-2_zps0359dac1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Old radiator removed.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/007-2_zpsaa71f292.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/007-2_zpsaa71f292.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/010-1_zps3b857e96.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/010-1_zps3b857e96.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Part of the debris stuck in the radiator.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/008-2_zps1163927d.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/008-2_zps1163927d.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Old belts.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/011-2_zps53e0a091.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/011-2_zps53e0a091.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>New belts & new water pump installed.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/020-2_zps798139b4.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/020-2_zps798139b4.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/021-1_zps2a81397b.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/021-1_zps2a81397b.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>New radiator.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/009_zpsdb7bf0c1.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/009_zpsdb7bf0c1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/011-1_zpsc88c2521.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/011-1_zpsc88c2521.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/012-1_zps85e58170.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/012-1_zps85e58170.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>New radiator installed.</p><p><a href="http://s373.photobucket.com/user/yemeng87/media/E46%20M3/022_zps27d9ca29.jpg.html" target="_blank"><img src="http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/022_zps27d9ca29.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Have tested the car for over two weeks now, the coolant temp is now below the halfway mark and only rises to half when the car is pushed hard. Do consider this DIY if your car is reaching 90k mileage for peace of mind. The bearings in my water pump were starting to fail. There was visible play and the rotating action was not smooth.</p></blockquote><p></p>
[QUOTE="maxxsp, post: 674268, member: 4808"] Update: Although the problem with the aux fan running at full speed was solved, the problem with the climbing temp still remained. Decided to bite the bullet and do a complete cooling system overhaul. Also changed the belts while the radiator was off. As usual, thanks to e34_lover for helping me with this DIY. The following parts/consumables were changed: - New (remanufactured) Water Pump - Water Pump Gasket & O-Rings - Genuine BMW E46 M3 radiator - Genuine BMW Coolant - Genuine BMW Engine Block Coolant Sensor - Febi OEM Fan Clutch - Continental OEM Belts Before. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/002-1_zps84ce61db.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/002-1_zps84ce61db.jpg[/IMG][/URL] Fan shroud off. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/004-1_zpsc764b91a.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/004-1_zpsc764b91a.jpg[/IMG][/URL] All shrouds removed. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/006-1_zpscd13e306.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/006-1_zpscd13e306.jpg[/IMG][/URL] Old fan clutch - FILTHY [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/005-2_zps7f982e07.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/005-2_zps7f982e07.jpg[/IMG][/URL] Cleaned the fan blades & water pump pulley. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/016_zps7fbc39ad.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/016_zps7fbc39ad.jpg[/IMG][/URL] New Febi fan clutch. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/001-2_zps0359dac1.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/001-2_zps0359dac1.jpg[/IMG][/URL] Old radiator removed. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/007-2_zpsaa71f292.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/007-2_zpsaa71f292.jpg[/IMG][/URL] [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/010-1_zps3b857e96.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/010-1_zps3b857e96.jpg[/IMG][/URL] Part of the debris stuck in the radiator. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/008-2_zps1163927d.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/008-2_zps1163927d.jpg[/IMG][/URL] Old belts. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/011-2_zps53e0a091.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/011-2_zps53e0a091.jpg[/IMG][/URL] New belts & new water pump installed. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/020-2_zps798139b4.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/020-2_zps798139b4.jpg[/IMG][/URL] [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/021-1_zps2a81397b.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/021-1_zps2a81397b.jpg[/IMG][/URL] New radiator. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/009_zpsdb7bf0c1.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/009_zpsdb7bf0c1.jpg[/IMG][/URL] [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/011-1_zpsc88c2521.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/011-1_zpsc88c2521.jpg[/IMG][/URL] [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/012-1_zps85e58170.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/012-1_zps85e58170.jpg[/IMG][/URL] New radiator installed. [URL=http://s373.photobucket.com/user/yemeng87/media/E46%20M3/022_zps27d9ca29.jpg.html][IMG]http://i373.photobucket.com/albums/oo179/yemeng87/E46%20M3/022_zps27d9ca29.jpg[/IMG][/URL] Have tested the car for over two weeks now, the coolant temp is now below the halfway mark and only rises to half when the car is pushed hard. Do consider this DIY if your car is reaching 90k mileage for peace of mind. The bearings in my water pump were starting to fail. There was visible play and the rotating action was not smooth. [/QUOTE]
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