[Glendaknapp]

Was looking for anyone with prior experience or that can offer me some input with this problem .......so A few days ago I started hearing this grinding noise when locking or unlocking my car in the morning. Originally thinking it was a fuel pump or something of that sort I read the code and it's a drivetrain malfunction code (p143c).The car was still driving fine and I didn't feel any major reduction in power. Was actually driving the car like this for about 10 days until I finally found the time to schedule an appointment with my SA. I went to bmw and luckily the servo motor was covered under warranty however I'm reading that the eccentric shaft may need to be changed out as well. I was quoted about 2400$ for the shaft to be changed. Wanted to know if anyone had any luck with replacing the motor alone or if they had to replace the shaft as well. Any replies would be greatly appreciated! Also if the 2 parts are connected is there any way to prove that the motor dying out had major wear and tear on the shaft ? Really despise putting this type of money into the car as I planned on trading it in this summer.

[jh_f30]

Recently needed this done on my car. Same grinding sound when locking/unlocking the car as it "wakes up". I did experience a loss of power under hard acceleration but fortunately was able to get home. After that, the car wouldn't even start. Threw a bunch of codes as seen in the attached photo.

Had the work done at a local independent Bimmer specialist shop. All in for the VVT motor and eccentric shaft and an alignment (that I added on since I needed one anyways) was around $2900, including the shaft pin bearing and new valve cover gaskets. There's a possibility that my eccentric shaft wasn't damaged, but I figured since they had to open up the engine anyways, I might as well have them replace it just in case and get double duty for the labor to remove the valve cover. Last thing I wanted was to try to save money by only doing the VVT motor and eventually finding out the shaft was indeed damaged and have to pay additional labor fees for them to open the engine and obviously replace the gaskets yet again.

After the work was completed, I asked the shop owner if the shaft was indeed damaged and he said that it was nearly impossible to tell with just a visual inspection. He could've been blowing smoke, but I trust him as he's a certified BMW tech with past dealership experience. Besides, the work was already done and paid for, so there's not really any point for him to lie to me about it.

For reference, my car is a 2013 335i that had about 132k miles on the clock when the issue arose and it was the first major repair I've needed to get done on it in the 80k+ miles I'd had the car.

[Glendaknapp]

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