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BMW 3-Series (E90 E92) Forum
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Chasing VANOS Codes, Please Help!
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08-11-2020, 06:20 PM | #23 |
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UPDATE:
The new solenoids arrived so I installed them yesterday. After installing I ran the test for the solenoids in ISTA where it teaches in the stop-limits, then went for a drive. Although the engine felt smoother, something did still feel slightly off like the engine wasn't running at 100%. Later on I was looking through the menus in INPA and found an option to delete the VANOS adaptation values so the system has to relearn new values. Went for a drive after doing that and I'm happy to report that all seems well! That said, the new solenoids have been in the car for less than 24hrs at this point so it's a little too early to say that the issues are completely solved, however I am optimistic. |
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Bims328i332.00 |
08-17-2020, 09:56 AM | #24 |
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Great to hear!
Glad you finally got your new solenoids. I've since swapped my OEM ones, cleared adaptations and reinstalled them (thanks to swap idea from forum user!). At first it seemed to move to the intake side. I had cleared the DME module and I've ran it for about a week checking oil levels and such at the end of work trips, oil level is stable. Scanned it just today to check and it is no longer throwing any VANOS codes! I'm actually surprised about the oil level because it seemed to leak a quart after I did the oil change and now after adding that back in it has remained full. I didn't clean them btw. Just a swap. Imo the assembly has one of those plunger multi level valves so its not like you can get much of anything up there to clean. I am sort of stuck with these Vaico ones though since they've been installed. Why even sell them if they don't actually meet spec requirements. I know by experience the motor does not like them. |
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08-20-2020, 06:19 PM | #25 |
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Great that you're no longer getting any codes!
Swapping is always a good way to deduce what is happening. And yeah, cleaning the solenoids can work but its kind of a bandaid solution and is only a temporary fix, replacement is inevitable so you may as well get new ones. You'd think that Vaico would make high quality components being a German company but I guess they are chasing profit and don't care how their parts perform which is unfortunate. If they are working ok I'd keep using them for now, but maybe in future you can get some BMW ones if things start to go wrong again. |
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Bims328i332.00 |
09-05-2020, 12:34 AM | #26 |
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Final update
It's been nearly a month since I replaced both my VANOS solenoids with genuine BMW parts and since doing so I have had no more fault codes or issues symptomatic of the VANOS system.
I would advise anyone with an N52 engine who is experiencing issues such as those mentioned in prior posts in this thread to consider replacing both solenoids with genuine BMW components. Before doing this, it is also worth ruling out other potential causes listed above such as the o-ring and cage inside the oil filter housing, VANOS check valves or camshaft and eccentric shaft sensor failures. I hope this thread has served as a useful tool to anyone who's N52 is giving them trouble. |
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03-14-2023, 12:17 AM | #27 | |
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Vanos Values
George! I finally made an account so I can pick your brain haha!
I have a quite similar vanos reading as the one you attached below. My question would be; is there a particular value that we need it to be? my reading current showing around 84 and the should be value is at the 120. i've cleaned the solenoids, and even swapped it to see if there are any changes, but it stays the same. have also changed the intake sensor, reset adaptations. any ideas? attached is my INPA screenshot. thanks very much! ![]() Quote:
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2a87, 2a98, 2a99, 330i, n52, sluggish acceleration, solenoid, underpowered, vanos |
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