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<blockquote data-quote="wingzee" data-source="post: 641261" data-attributes="member: 22730"><p>Visited Naidu this morning to check on my outstanding air-cond issue where hissing sound is apparent and coolness is pretty weak on normal hot days. Found out the cooling coil is leaking and he is charging RM1.8k for the original Behr cooling coil and full service of the aircond. Since he's abit tied up today (There's another E39 going through cooling coil replacement as well with whole dashboard taken off), decided to pay my regular mech in Jln Ipoh a visit since the last replacement of ignition coils shown that all 6 spark plugs were wet.</p><p></p><p>A normal visit to rectify my wet spark plugs turned out to be another racun session with total bill of RM800.</p><p></p><p>When the engine cover was opened up to replace the valve cover gasket and grommets, mech suggested to check on the VANOS seals as well since he have some spares lying around. Didn't prepare the budget for the VANOS seals replacement as only planning to do it in January.</p><p></p><p>Well I guess it's a good thing to do so as once the engine cover is opened, the inlet camshaft was found to be out in about 1/6 of size of the alu bar! That makes sense since FC been pretty high lately. Once cam shaft been correctly aligned, mech proceed to open up the VANOS. As expected, all the Teflon and rubber O-rings were hardened so badly that they felt like plastic, no joke! A side-by-side comparison between the new and old seals is enough to determine the old seals is due for change long time ago.</p><p></p><p>Right after the replacement, took a test drive and improvement of low end torque and smoothness can be felt immediately. Was told that the seals would require run-in of about 300+km. Will monitor on the FC and low end torque whether will they improve further.</p><p></p><p>Was quite doubtful on the functions of these seals despite having such good feedback from various UDM owners that the replacement VANOS seals did make a difference. Now I get to feel it for myself. For those who are still hesitating on whether to splurge the RM180 for these seals, I would say wait no further. It will be the best RM180 you ever spent!</p><p></p><p>Other than the gaskets and VANOS seals, decided to replace the expansion tank cap as well since trail of leaks were found around the tank and radiator. Not serious but better to replace since it's an inexpensive part.</p><p></p><p>After everything, diagnosis were done and no error codes found. Wallet is RM800 lighter but happy with the money spent.</p><p></p><p>Enough of story-telling, let the photos below do the talking.</p><p></p><p>Engine cover opened. Condition of engine is not clean as expected but at least no sludge</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/59BD2AD5-70FD-4D92-A8FE-CA10BA8A5EF7-1280-0000017C55E812C2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Trail marks of coolant around the expansion tank which leads to the believe that expansion tank cap is due for replacement</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/CD4648B2-40C2-45F8-AA30-792F6610F47C-1280-0000017C677AF017.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Replacement VANOS seals</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/9A30C5F4-63A9-4EFD-A05C-2143B615C080-1280-0000017C790970E5.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>VANOS off</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/5CF6CFE6-5063-4181-B425-D568153DBAA1-1280-0000017C90370E7E.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Showing the Double VANOS</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/8413BBD8-3B4A-448D-88BF-DCA6BB012BF8-1280-0000017C81B689FF.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>VANOS cleaned and new seals are in</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/9A2E8FC5-B951-486A-A434-12D0AF250A43-1280-0000017C9C5FE35C.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Old hard and brittled seals</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/2C4E2708-AC86-4D75-8E40-44D5DE0790BC-1280-0000017CA8A44D15.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>VANOS being placed back in original position</p><p><img src="http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/436B17E3-9ED9-4753-B953-630241278C43-1280-0000017CB465851F.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="wingzee, post: 641261, member: 22730"] Visited Naidu this morning to check on my outstanding air-cond issue where hissing sound is apparent and coolness is pretty weak on normal hot days. Found out the cooling coil is leaking and he is charging RM1.8k for the original Behr cooling coil and full service of the aircond. Since he's abit tied up today (There's another E39 going through cooling coil replacement as well with whole dashboard taken off), decided to pay my regular mech in Jln Ipoh a visit since the last replacement of ignition coils shown that all 6 spark plugs were wet. A normal visit to rectify my wet spark plugs turned out to be another racun session with total bill of RM800. When the engine cover was opened up to replace the valve cover gasket and grommets, mech suggested to check on the VANOS seals as well since he have some spares lying around. Didn't prepare the budget for the VANOS seals replacement as only planning to do it in January. Well I guess it's a good thing to do so as once the engine cover is opened, the inlet camshaft was found to be out in about 1/6 of size of the alu bar! That makes sense since FC been pretty high lately. Once cam shaft been correctly aligned, mech proceed to open up the VANOS. As expected, all the Teflon and rubber O-rings were hardened so badly that they felt like plastic, no joke! A side-by-side comparison between the new and old seals is enough to determine the old seals is due for change long time ago. Right after the replacement, took a test drive and improvement of low end torque and smoothness can be felt immediately. Was told that the seals would require run-in of about 300+km. Will monitor on the FC and low end torque whether will they improve further. Was quite doubtful on the functions of these seals despite having such good feedback from various UDM owners that the replacement VANOS seals did make a difference. Now I get to feel it for myself. For those who are still hesitating on whether to splurge the RM180 for these seals, I would say wait no further. It will be the best RM180 you ever spent! Other than the gaskets and VANOS seals, decided to replace the expansion tank cap as well since trail of leaks were found around the tank and radiator. Not serious but better to replace since it's an inexpensive part. After everything, diagnosis were done and no error codes found. Wallet is RM800 lighter but happy with the money spent. Enough of story-telling, let the photos below do the talking. Engine cover opened. Condition of engine is not clean as expected but at least no sludge [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/59BD2AD5-70FD-4D92-A8FE-CA10BA8A5EF7-1280-0000017C55E812C2.jpg[/IMG] Trail marks of coolant around the expansion tank which leads to the believe that expansion tank cap is due for replacement [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/CD4648B2-40C2-45F8-AA30-792F6610F47C-1280-0000017C677AF017.jpg[/IMG] Replacement VANOS seals [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/9A30C5F4-63A9-4EFD-A05C-2143B615C080-1280-0000017C790970E5.jpg[/IMG] VANOS off [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/5CF6CFE6-5063-4181-B425-D568153DBAA1-1280-0000017C90370E7E.jpg[/IMG] Showing the Double VANOS [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/8413BBD8-3B4A-448D-88BF-DCA6BB012BF8-1280-0000017C81B689FF.jpg[/IMG] VANOS cleaned and new seals are in [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/9A2E8FC5-B951-486A-A434-12D0AF250A43-1280-0000017C9C5FE35C.jpg[/IMG] Old hard and brittled seals [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/2C4E2708-AC86-4D75-8E40-44D5DE0790BC-1280-0000017CA8A44D15.jpg[/IMG] VANOS being placed back in original position [IMG]http://i126.photobucket.com/albums/p81/teikwing/BMW%20325i%20E46/436B17E3-9ED9-4753-B953-630241278C43-1280-0000017CB465851F.jpg[/IMG] [/QUOTE]
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