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TOPIC: 2015 BMW 328xi

2015 BMW 328xi 10 Feb 2020 23:04 #1

  • Thomas
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Thomas here from Ghana and new to this forum. I am interested to Groove my BMW 328 but concerned with the highly sophisticated computers on these recent models.
I will appreciate some advice/caution as to what pros and cons could be encountered.

Thank y'all in advance!
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2015 BMW 328xi 11 Feb 2020 11:28 #2

  • GregK
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Hello Thomas- welcome!
The first caution I would offer to you: expect no further support from a BMW dealership. From the moment you choose to modify a car, you’re stepping into terra incognito, so I hope you’re not under warranty and are mechanically inclined or have a good relationship with an open minded mechanic/technician.

Now, before we can help you, would you be able to post pictures of your car’s Throttle valve and PCV/breather systems here please?
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2015 BMW 328xi 08 Mar 2020 06:39 #3

  • Thomas
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Hi Greg.

My apologies for the long period to get back.,I hope the photo helps.

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2015 BMW 328xi 09 Mar 2020 12:01 #4

  • GregK
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That photo appears to be of the Throttle body/valve...but to the right, near your hand, appears to be a hose that I'd wager is the breather that goes to one bank of your v6.
find a similar hose/tube connected to the opposite bank, and follow it to the intake manifold. Pull that hose off where it is connected to the intake manifold, cap/plug that port, and then T-connect this hose to the one in the photo.
Once you have followed this procedure, you will have completed what is likely the most important pre-groove modification: the PCV cap/re-route.

If I recall correctly, BMWs had what was basically a gauge in the instrument cluster that measured "efficiency" but was really a manifold vacuum gauge. If yours does, it should start behaving differently - staying on the high efficiency end of the scale for longer, and moving to it sooner.

drive the car, taking note of how it runs and your fuel consumption. You should see a decrease in fuel consumption, but just a slight one. but you should also feel a slightly smoother and possibly more powerful (slightly!) engine/car.
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2015 BMW 328xi 09 Mar 2020 14:13 #5

  • Thomas
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Thank you Greg. I'll report back when I after going through with my mechanic.

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2015 BMW 328xi 09 Mar 2020 14:31 #6

  • GregK
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You’re most welcome!
Please keep us posted on your progress with this here.
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2015 BMW 328xi 09 Mar 2020 15:22 #7

  • Thomas
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I sure will
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