Low RPM shudder after BM3 and XHP trans tune

550l · 10-17-2020, 02:26 AM

2016 550i xdrive
BM3 stage 1
XHP Stage 2 trans tune

Put BM3, noticed cut off of torque limiter
Replaced plugs and coils
Put trans tune
No more cut off of torque limiter

However now there's a shudder at low rpm that has been progressively diminishing but still there after about 75 miles

Is this normal? Or is there a fix for it

satta535i · 10-18-2020, 09:37 PM

check ur vanos and ur plugs gap

550l · 10-26-2020, 05:34 PM

Quote:

Originally Posted by satta535i

check ur vanos and ur plugs gap

How do I check Vanos?

satta535i · 10-27-2020, 12:30 PM

Quote:

Originally Posted by 550l

Quote:

Originally Posted by satta535i

check ur vanos and ur plugs gap

How do I check Vanos?

take them out and inspect for debris or just clean it anyways

Thecastle · 10-30-2020, 07:59 AM

I'll be interested in what you guys discover as I have the same issue with a stock 2016 550i xdrive. Low rpm shudder in high gears, high load.

10-17-2020, 02:26 AM	#1
550l Private 1 Rep 55 Posts Drives: 2016 F10 550i x-drive Join Date: Sep 2020 Location: Minneapolis iTrader: (0)	Low RPM shudder after BM3 and XHP trans tune 2016 550i xdrive BM3 stage 1 XHP Stage 2 trans tune Put BM3, noticed cut off of torque limiter Replaced plugs and coils Put trans tune No more cut off of torque limiter However now there's a shudder at low rpm that has been progressively diminishing but still there after about 75 miles Is this normal? Or is there a fix for it
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10-18-2020, 09:37 PM	#2
satta535i Private 20 Rep 90 Posts Drives: 2013 c63, 2016 535i Join Date: Feb 2019 Location: PA iTrader: (0)	check ur vanos and ur plugs gap
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10-30-2020, 07:59 AM	#5
Thecastle Major 307 Rep 1,146 Posts Drives: F10 550i Join Date: Apr 2015 Location: Houston, TX iTrader: (0) Garage List 2020 BMW M340i [0.00] 2019 RAM 3500 [0.00] 2020 BMW X3 [0.00] 2016 BMW 550i [0.00] 2000 Ford F450 7.3l ... [0.00]	I'll be interested in what you guys discover as I have the same issue with a stock 2016 550i xdrive. Low rpm shudder in high gears, high load.
	Appreciate 0 Quote