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BMW 3-Series (E90 E92) Forum
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DIY - Replacing Camshaft VANOS Solenoid
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09-23-2012, 10:05 PM | #112 |
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I used MAF cleaner
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09-23-2012, 10:53 PM | #114 |
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Worked great, just spray and yiu will see the liquid come out (oily in color) spray until the liquid runs dry....you will know what I mean when you do it!blet dry a hour and re-install.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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09-23-2012, 11:12 PM | #115 |
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09-23-2012, 11:57 PM | #116 |
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thst is actually a good thing about it...just spray until runs clear and then it dries fast.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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09-27-2012, 02:53 AM | #117 |
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I just went through the DIY and decided to clean my solenoids before replacing them. The problem was that under WOT it would occasionally/usually give me the yellow dashboard light which was described in the manual as "engine malfunction with adverse effect on emissions". So i removed both solenoids, cleaned them, and put them back on, but this time i put the exhaust solenoid in the intake hole and vice versa to see if it made a difference. When i started the car, everything seemed to be fine at the beginning so i took it to a test drive and after about 2 minutes of occasionally flooring it, the yellow light came on again and stayed on. Now it's always on. Quite terrifying. Any ideas guys?
Oh and my car is an lci 325i. |
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09-27-2012, 03:35 AM | #119 |
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turn car off, disconnect battery for a hour or so and see if this fixes it...if not dealer it or replace both.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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09-27-2012, 05:16 AM | #120 |
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Disconnecting the battery didn't work. Still getting the EML light. Will probably take it to a dealer to check soon. But do you really think replacing the solenoids will work? I can't imagine how the existing solenoids might have come to be defective. Perhaps i cleaned them wrong. I dipped the tip of the solenoids in gasoline and wooshed them around a little bit, let it dry off and put them back on. I read that technique in another diy and seemed logical. Maybe i should try and clean them again with MAF cleaner? I wonder if there's anything else that could be faulty besides the solenoids?
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09-27-2012, 10:57 AM | #121 | |
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Quote:
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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09-27-2012, 11:03 AM | #122 |
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Yeah, just finished trying that. Cleaned with crc maf cleaner extensively. Now i put the solenoids back on and the yellow light was on immediately after turning on the car. Not sure if the engine was acting any different though. I dare not take it for a drive to find out.
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09-27-2012, 11:13 AM | #123 | |
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Quote:
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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09-28-2012, 01:30 AM | #125 |
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Okay so i have some new information. I took it for a short test trive around the block, since the engine seemed normal while idling and everything was okay, the acceleration the sound, even at WOT at low rpm. Before i cleaned my solenoids it started to stutter at WOT like power/no power very rapidly. Now it seemes okay. Another interesting thing is that the yellow light comes on even when i just turn on the ignition and not the engine. All the lights come on, then all go off except for the yellow engine light.
Now i did another test drive and it's really weird again. Stutters constantly, especially at low rpm. Perhaps a cylinder misfire? Gonna take it for diagnostics on monday. Last edited by Reio; 09-28-2012 at 09:58 AM.. |
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09-29-2012, 02:41 PM | #127 | |
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10-02-2012, 03:57 AM | #128 |
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I took it to a local garage today. The diagnostics showed a misfire had occured on cylinder 2. Unfortunately i forgot to ask for the excact code. They deleted to error code to see if it made a difference and when i took it for a test drive it seemed ok again for a while so i decided to leave it at that until there was a problem again. So driving back from the garage the light came up again at hard acceleration. What's interesting though is that now it disappears after restarting the car but before i had the fault code deleted, the light came up immediately after starting the car absolutely every time. I wonder if it could really be the valvetronic motor? I also found some sort of fix for a common fault in with the valvetronic motor: http://mhhauto.com/printthread.php?tid=1744
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10-02-2012, 03:59 AM | #129 |
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10-11-2012, 06:14 PM | #131 |
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Nice DIY! So... what role do you guys think BMW's long OCI plays? IF any?
These VANOS Solenoids aren't that expensive - if one needs to replace them. ~$130ish.
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10-11-2012, 06:54 PM | #132 |
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I swapped/cleanned my vanos a few weeks ago along with an injector cleaner (Chevron) fill and my car's idle is very smooth now. Not sure if was due to the vanos swap or the injector cleaning...either way I am happy with results. Next is task is changing spark plugs.
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