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BMW 3-Series (E90 E92) Forum
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DIY - Replacing Camshaft VANOS Solenoid
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10-11-2012, 07:02 PM | #133 | |
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Quote:
bought new solenoid n never had a problem again.for some people the cleaning/swapping works but not for my car
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10-18-2012, 09:44 PM | #134 |
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Very helpful! Was throwing an exhaust limp code occassionally after running the car hard in 3-4th gears. Cleaned and swapped the noids, and even after trying to trigger them, the limp codes have stopped.
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10-21-2012, 10:46 AM | #135 |
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I just finished swapping and cleaning my solenoids out today and thanks to this thread I fixed my check engine light! My error codes were as follows:
2A98: NOT present crankshaft-inlet camshaft, reference 2A82: NOT present VANOS intake (Sticky/jammed vanos code) The car is now running like it should and I am back to being a happy camper!! Originally it wasn't pulling as hard and I was getting inconsistent idling. See my original thread in the N52 engine section: http://www.e90post.com/forums/showthread.php?t=755010 |
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11-06-2012, 05:02 PM | #136 |
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Thanks for the DIY! I threw the code a few weeks back and have been meaning to take care of it.
I used MAF cleaner, and followed your guide. Did the bottom one first, then the top one. Not sure if its placebo but the car seems to pull harder. |
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11-15-2012, 03:29 PM | #137 |
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I took my solenoids out and cleaned them but it seems like the o-ring is preventing them from going back in far enough. There is still a 1/4 inch gap. Anyone experience this?
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11-15-2012, 03:32 PM | #138 |
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Use some force. push as you turn sideways thats all. I did this a couple of months ago.
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01-12-2013, 01:57 PM | #139 |
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I did this today. It took longer to get off the engine cover, cowl etc. as I had never done that before! Although the engine cover doesn't need to come off, it gives you loads more room to work with it off.
Tip: Use cable ties to hold the pipes up and out of your way Tip: The O-rings on mine didn't come out with the solenoid. Make sure that if this happens you, remove them from the seal before trying to put in the new solenoid. Tip: Use fresh engine oil to lube new O-rings to make it easier to pop them back in. Thank you OP for this DIY as it helped me a lot! |
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02-22-2013, 09:27 AM | #140 |
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So I found a 2a99 code this morning only because I decided to scan my car. It is the only code being stored. No limp or CEL lights. Plan on cleaning the solenoids using this DIY. Should their be anything else I need to be looking at?
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03-10-2013, 08:02 PM | #141 |
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Thank You for this DIY- I had a P1554 generic OBD-ii code and by taking the 30 minutes to pull my VANOS solenoids and clean them I went from 22MPG to over 29MPG Highway in my N52 Powered E60.
I used brake clean and canned air to clean out the varnish that had built up over the 73,000 miles this car has on the clock. |
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03-19-2013, 11:44 AM | #142 |
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So what's the consensus on a n54... Do I need to remove the cowling and engine cover to do this or can I get away with just removing the snorkel?
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03-19-2013, 12:24 PM | #143 | |
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I just did them on Saturday, my plugs and Vanos Solenoids. Scale of 1-10. I give it a 3, max 4. I used the follow videos on you tube. Look them up: AskCOBB Episode 2 - BMW Misfire Diagnosis and Repair And BMW Vanos Solenoid Replacement Intake and Exhaust N51, N52, N52K, N54 Faults 2A87 2A82 2A9A 2A98 My notes: For the vanos, take the cover off only helps and just gets it out if the way. When pushing the new Solenoids in, requires more force to sit flush. The new o ring on the solenoid, I just used some of my engine oil to lubricate it. Put a towel under the solenoid before removing to prevent oil from landing on the belts and what not. Engine must be cold, like over night. When you lose the solenoid bolts, then use your hands so there is no chance of the falling. If you have the proper tools. Should take you 10 min to get the cover off, if that. I got the Solenoids from BMW dealer on eBay. I even called them to verify that they were new and oem, factory sealed. Hope this helps. DN |
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03-24-2013, 01:12 AM | #144 |
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Thanks OP for this guide and everyone's experience & suggestions on installing!
Now I can do a proper WOT log! Looks like it was good practice taking engine cover off since ill be doing that for a spark plug. NOTES: For me engine cover came completely off, and needed to, for space. All about having the right tools. I completely replaced the solenoids and new orings came with them. I will be keeping the old ones and cleaning up to add to the parts collection. Took pics to create my own guide
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03-29-2013, 05:51 PM | #145 |
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I have rough idle (no misfires, no codes) both in park, neutral and drive. Idle RPM is around 660. I was wondering if cleaning vano solenoids help in anyways.?
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03-29-2013, 06:18 PM | #146 | |
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And what e90 do you have? Year, model, milage? Ps: I did my spark plugs, coils, and Solenoids. No more rough idle, and a walnut blast....now better responsive ride. Like new. |
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03-31-2013, 06:58 AM | #147 |
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03-31-2013, 08:47 AM | #148 | |
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Not sure why idle changed after swapping soleniods, any idea? Thanks |
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04-01-2013, 12:53 AM | #149 |
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Chinna. When did you replace your coils or spark plugs last?
I bought mine from eBay seller: germanautosupply His coils were dated 12-11-15 The latest. Plugs were best priced for a full set. Not sure what regular idle should be on a n52, but seems slightly high. Should be 600ish. Could be wrong. If your coils or plugs have never been changed, then that's where I would start. 95k miles is very high. Check you coolant level. Also, look on eBay for a BMW dealer selling these Solenoids for 109 each. I replaced both of mine, but it didn't do much. Have had any solenoid errors at all ever? Also, clean your injectors. How? eBay again look for BG 44k. Buy 2 cans. Product number 208. This should be written on each can. I put 1 in 1 full tank. Then when tank was nearly empty I put 1 more in the next tank. Just to be sure injectors got really clean. Strongly recommend this. Also download Bmwlogger. Reset all you DME. Follow the directions after DME resetting. The instruction on a sticky thread under coding section. Keep in mind, it will not log, but you can reset dme adaptions. 95k mikes is a lot, What oil are you using? DN |
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04-02-2013, 12:38 AM | #150 | |
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Spark plugs: Changed couple of weeks ago with NGK Laser iridium (same as OEM). One twist to that is, one of the plug is defective(cold start misfire). Old plugs are still in pretty good shape, so replaced that with old one, and now misfire is gone. Coils: I have not changed any coils. But when I checked the coils, it seems some of coils are newer(inside the coil which connect to plug is different. Probably has been replaced previously. BMW folks says it is unusual for coils to cause rough idle(Except if it has misfire which can be detected). Coolant: I just replaced thermostat because I have thermostat heater open circuit error. During this replacement, I drained coolant almost completely (2 gallons) and refilled with BMW coolant+distilled water. So coolant is not an issue. Idle speed: Here are some changes from yesterday. After cleaning and swapping VANOS solenoid, the idle speed went up to 730. Never had any VANOS solenoids errors, not even in history. But by today evening it settle back to 660RPM again, back to original idle speed. Like you said, It seems idle should be around 600ish. I felt now engine is somewhat smoother, but it may be simply placebo effect. When compared to my friends 2006 325i, it is rougher. Injector cleaning: I ran several bottles of fuel system cleaner, in this order sofar.(pretty much back to back). 1. 1 bottle of Techron Fuel injector cleaner 2. 1 bottle of Techron fuel system cleaner 3. 1 bottle of Techron Fuel injector cleaner 4. 1 bottle of Redline fuel system cleaner But no change in rough idle. Now I got GAMUT with REGANE. I will try that tomorrow. Meanwhile I also got MAF cleaner which I have not used yet. so MAF is next in line... Also, please see the carbon on the pistons(via spark plug holes). Not sure if this is normal or not. How was yours when you changed sparkplugs? Thanks Last edited by chinna_n; 04-02-2013 at 02:47 PM.. |
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04-02-2013, 11:04 AM | #151 |
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Run 1 tank of BG 44k
I didn't find a single negative review. This is the ultimate stuff. Highly recommend it. Glad to see your idle settling. This could have been an adaptation take place. DN |
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04-16-2013, 02:07 PM | #152 |
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I doubt anyone will read this but I have theory. Some of that oil gunk stuff on solenoids is caused by long change intervals like ones recommended by bmw. Keep it between 6-7.5k miles and you wont have this happen. I pulled mine today just to see how they look for first time. Clean as a whistle...Just saying good oil change interval as per mike millers bmw maint guide will go long way.
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04-16-2013, 06:30 PM | #153 | |
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04-16-2013, 09:08 PM | #154 |
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