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BMW 3-Series (E90 E92) Forum
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DIY - N54, 335i Serpentine Belt, Tensioner, Upper and Lower Pulley Replacement
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07-08-2017, 02:18 PM | #45 | |
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Just paying it forward to the help this community provided me since 2012. |
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07-14-2017, 10:39 PM | #46 |
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Just want to chime in, fan comes out without needing to remove a single hose. Simply pull up and slightly back towards the block. I have done the job a handful of times, and have never even messed with rad hoses.
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07-15-2017, 12:47 PM | #47 | |
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Honestly the vent hose broke with so little pressure that I think it was inevitable. |
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08-12-2017, 05:00 AM | #50 | |
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I replaced them cause I was there, and it's like 10 GENEROUS mins to replace them and cost is cheap......so I thought it as a preventative maintenance item. |
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08-12-2017, 05:00 AM | #51 |
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08-12-2017, 05:05 AM | #52 | |
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I was shocked to see where my leak was. and extremely tight access to replace front turbo actuator vac line. use high temp silicon vac lines, not rubber windshield washer lines. |
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08-14-2017, 03:18 PM | #53 |
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Hoping I don't have to replace vacuum lines for a while...
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08-15-2017, 10:55 AM | #54 |
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08-18-2017, 07:05 AM | #56 |
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09-27-2017, 09:37 AM | #57 | |
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Drives: e92 n54 LSD....
Join Date: Nov 2011
Location: southeast
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10-16-2017, 06:17 PM | #58 | |
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Do this ASAP. I had 106k and the belt started to show signs of wear via squeaking for less than 10days before I got cooked. |
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10-21-2017, 05:56 PM | #59 |
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Hmm... My bently manual says the torque spec for the Idler Pulley to Alternater is 80 NM. Anyone else find conflicting torque specs?
I could only find the torque spec by looking up the instructions for installing an alternator, the book doesn't explicitly cover removing/installing the tensioner and idler pulleys. Last edited by minifridge1138; 10-21-2017 at 06:01 PM.. |
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10-22-2017, 04:05 AM | #60 | |
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and since I posted this guide.... no issues so far. don't over tighten it.....80nm....that's very high....wow. that's almost wheel bolt torque spec for e90. |
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10-22-2017, 07:33 PM | #61 |
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Yeah, 80 NM seemed crazy to me. No idea where they got value.
Poking around on Bently's forums and they say 25NM for the idler pulley to alternator bolt on the N52 on a 530i (and they admit they had to dig around in BMW's tech sheets for that). Thanks for your help! |
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11-19-2017, 03:51 PM | #62 | |
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I'm not sure is something is different on the E93, but I cannot get the fan to come past the heat exchanger when pulling up. The heat exchanger wedges between the shroud and a couple of black solid metal lines at the bottom after it moves up about 2-3 inches, and will not lift any further. The screw is removed from the heat exchanger to the shroud and the grommet on the air pipe is released. The shroud is unclipped on the driver side and the upper passenger side torx is removed. Am I missing something??? This thing just will not lift any more on the driver side Any help is much appreciated!!! |
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11-19-2017, 07:50 PM | #63 | |
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On This Video at at 4:49 Time: Is this Rubber Grommet releases or not? also is the Tranny cooler catching the Rad Fan in any way or not. 3rd point: try pushing up from under the Car and then you will see exactly where it is getting Caught. 4th Point, once it is lifted 2 inches as you stated, lift left and then right only. which side is caught? If Memory serves, Mine was not coming past 2 inches also. and I am sure it was either this rubber slide in grommet or the tranny cooler catching an edge of the rad fan. but after pushing it from the bottom and seeing where it was catching helped. let us know how it goes. |
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11-19-2017, 08:44 PM | #64 | |
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1. Yes the rubber grommet is definitely released. 2. Yes it's the tranny cooler/heat exchanger that's catching on the shroud, not the fan itself 3. I see from underneath that the shroud is catching on the flared portion of it that accommodates the torx screw mount for the oil cooler, thus jamming the cooler between the shroud and the steel lines not allowing it to move upward further. 4. Yes, it's only catching on the right(driver) side. Definitely catching/wedging itself against the tranny cooler, it's well clear of the clip/grommet. I have tried pushing from the bottom as well, but with no luck. I hate to use more force for fear of damaging it and/or not being able to get it back in, but that may be my only option at this point. EDIT: I think I'll try taking out the intercooler and see if that buys me any space. Last edited by SoILBMW; 11-19-2017 at 08:52 PM.. |
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11-20-2017, 09:13 AM | #65 | |
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also, get someone to help you. while someone goes up and down with it, you with a Flash Light figure out where it is catching. Method 2. Start raising 1 side then the Other side, May be. if not, try the raising the otherside first. wiggle it left to right, and if not, then right to left. Method 3. This is a Maybe. The Fan and Fan Shroud are 2 pieces. if possible, take the Fan off....it's just a couple of screws. might want to review any diagrams on Realoem.com Other than that....Get help. |
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11-20-2017, 09:23 AM | #66 | |
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The fan and shroud are two pieces, however it has to be removed to separate them. The intercooler was very easy to remove 2 torx screws and 2 line clips and it dropped right out. That gave me the clearance it needed, and it lifted right out after that. Thanks! |
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