Some customers have encountered the high pressure hardline fail at the track, spraying oil all over their engine compartment, ending their day. Thank you November 28, 2017 Followup from the Pelican Staff: if the solenoids were cleaned already, your issue may be with mechanical engine timing. Rpms drop, car is about to stall, check engine light. This is not necessary, but is good practice. Vanos cylinder cover gaskets should also not be bent. Also pulled out the non return valve and cleaned. It is automatic with manual shift available.
I can go on and on about coils misfiring, engine running roughly, and I love my car 650i triple black convertible…58k miles. Sounds like an engine misfire. This might be related to trapped air in the vanos. It may be the issue is now worse by coincidence. But saw this Vanos possibility on your site.
I would check spark, fuel and compression on all cylinders. With your vehicle info handy, give The Pelican Parts parts specialists a call at 1-888-280-7799. March 28, 2017 Followup from the Pelican Staff: See other question for guidance. Air snorkel and solenoids double checked seated properly. Even if you have a completely blown engine or transmission, you most likely can still repair your car for a fraction of that quoted price at a different independent shop that would rather keep your business. These are only a few fault codes for the Vanos system, other codes could also indicate a failing Vanos system. For each coil, pull up and back on coil connector pivot lock until coil electric connector is thrust out and disconnected.
Granted I could probably do the lifter replacement myself, but that just doesn't sound like a project I want to tackle just to get rid of a little noise I don't notice when I'm driving. Sounds like an engine misfire. Note: Some alignment and effort will be necessary to reinsert pistons into cover cylinders. Press in on metal clip and pull off connector. I also have small backfire when I floor it while idling. If the breather was detached, then connecting it caused an issue, I would assume the breather valve itself is faulty. Just a quick question see if you guys may know any better.
Install small and large Teflon seals rectangular black in corresponding piston grooves. According to them they think it could be a timing chain problem. Install engine lift bracket at vanos intake solenoid. December 7, 2017 Followup from the Pelican Staff: What fault code pointed you to spark plugs? Insert piston fully into cylinder to properly position piston. Since then, I've had two brief episodes of jerking, one in 1st gear, one in reverse.
Note: Be sure to not miss the rear left corner bolt. If seal is binding, reposition piston and attempt again. I just checked out that service bulletin, and that sounds about right. Not throwing codes for vanos. Note: Rocking of blade while pressing helps create cutting motion. I took it to the dealer today and they said it be day or two to fix.
Proper maintenance will avoid a costly repair bill in the future. Note: Exhaust side cylinder has spring behind piston that will force cylinder cover off during removal. I would check for a vacuum leak, look at the intake ducts. Remove vanos exhaust solenoid electrical connector. The Vanos solenoids are subject to bore wear and that affects the pressure regulation. I will clean the Vanos as advised and revert if I have any question.
Don't need to call the Dr. Maintaining piston to cylinder association is good practice. Note: Rocking of blade while pressing helps create cutting motion. Is the check engine light on or flashing when the problem is present? This will be your best bet when diagnosing. Is the check engine light on or flashing when the problem is present? With cleaning the solenoids doesn't heal, what would be the next step you suggest? It starts to happen if you do a lot of short trips. Sometimes, first thing in the morning.