Charge pressure too high

Jrsimp78 · 09-17-2016, 03:47 AM

Hi all

I'm having the occasional "drivetrain - drive moderately" usually under hard acceleration . Then goes into limp mode ( still drives nice but less power.
Can drive for hours and no issues but it's not nice thinking you may lose a load of power at any minute if you're overtaking

Codes are reading
Charging pressure control plausibility too high

Charging pressure control deactivation, pressure build up blocked

Air mass volume too high

And also

Power management, overvoltage
(I think this one may be irrelevant )

Is this the wastegate control valve or the diverter valve??
Has anyone tried cleaning the wastegate control valve . Seems an easy first attempt .

Any thoughts guys ?
Thanks in advance

Bmw doubles · 09-17-2016, 08:49 AM

Stock or tuned?

paul_sarky · 09-17-2016, 12:54 PM

Check your intake post MAF sensor, might have something loose or cracked, sucking in more air than it thinks it is causing it to over pressurize. Had that happen to me a few times, one of the intake rubber clamps got loose, easy fix if that's what it is.

Jrsimp78 · 09-17-2016, 01:18 PM

Hi , it's stock , zero mods.
I removed and cleans the boost control valve and checked the function of the wastegate actuator. (Seemed ok. The valve behaved a little differently after cleaning ( as in the way that air flows through the in and out. ) ok. I'm hoping it may have been sticking .
Test drive with multiple povokation ... no issues so far.

I'll double check for cracks / potential leak points .
Thanks for the help . I'll keep you posted on how it goes

Jrsimp78 · 10-01-2016, 11:02 AM

Issue has reoccurred . Now replaced the wastegate control valve. ( pressure converter) . The part number has been superceeded twice since the original . The new one has a much larger filter section on it so maybe it is recognised by BMW as being insufficiently robust.
Let's see how it's goes

Jrsimp78 · 10-03-2016, 01:11 PM

Fist long run since the boost control valve was change. No issues so far and the general performance seems better and more responsive. Not counting any chickens yet 🐔🐔🐔

Secret_Asian · 10-03-2016, 02:43 PM

post up the part number you purchased

Jrsimp78 · 10-12-2016, 12:30 PM

Hi .

all isstill looking good
Old part no=11747584628
New part no =11747626351

09-17-2016, 03:47 AM	#1
Jrsimp78 New Member 11 Rep 22 Posts Drives: 535i se auto saloon Join Date: Oct 2015 Location: Spalding Uk iTrader: (0)	Charge pressure too high Hi all I'm having the occasional "drivetrain - drive moderately" usually under hard acceleration . Then goes into limp mode ( still drives nice but less power. Can drive for hours and no issues but it's not nice thinking you may lose a load of power at any minute if you're overtaking Codes are reading Charging pressure control plausibility too high Charging pressure control deactivation, pressure build up blocked Air mass volume too high And also Power management, overvoltage (I think this one may be irrelevant ) Is this the wastegate control valve or the diverter valve?? Has anyone tried cleaning the wastegate control valve . Seems an easy first attempt . Any thoughts guys ? Thanks in advance __________________ 2010 F10 535ise auto saloon, sophistico grey / oyster 331 19"
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09-17-2016, 08:49 AM	#2
Bmw doubles Dream crusher 983 Rep 2,421 Posts Drives: Fast Join Date: Mar 2015 Location: westside iTrader: (0) Garage List 2011 535 [0.00]	Stock or tuned? __________________ 535i MIssion Performance, PS2, Helix HPFP Kit, Wagner FMIC, Spec 3 clutch, Steel SMF, Wolf Racing CP, UUC SSK, GFB dv, SprintBooster, Custom Dynomax Exhaust, M5 Sways, Eibach OE Springs, Koni Sports Adjustable, Custom Short Ram CAI IG: @bmwdoubles
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09-17-2016, 12:54 PM	#3
paul_sarky Private 38 Rep 99 Posts Drives: 2012 BMW 550i M-Sport Join Date: Sep 2015 Location: Seattle, WA iTrader: (0)	Check your intake post MAF sensor, might have something loose or cracked, sucking in more air than it thinks it is causing it to over pressurize. Had that happen to me a few times, one of the intake rubber clamps got loose, easy fix if that's what it is.
	Appreciate 0 Quote

09-17-2016, 01:18 PM	#4
Jrsimp78 New Member 11 Rep 22 Posts Drives: 535i se auto saloon Join Date: Oct 2015 Location: Spalding Uk iTrader: (0)	Hi , it's stock , zero mods. I removed and cleans the boost control valve and checked the function of the wastegate actuator. (Seemed ok. The valve behaved a little differently after cleaning ( as in the way that air flows through the in and out. ) ok. I'm hoping it may have been sticking . Test drive with multiple povokation ... no issues so far. I'll double check for cracks / potential leak points . Thanks for the help . I'll keep you posted on how it goes
	Appreciate 0 Quote

10-01-2016, 11:02 AM	#5
Jrsimp78 New Member 11 Rep 22 Posts Drives: 535i se auto saloon Join Date: Oct 2015 Location: Spalding Uk iTrader: (0)	Issue has reoccurred . Now replaced the wastegate control valve. ( pressure converter) . The part number has been superceeded twice since the original . The new one has a much larger filter section on it so maybe it is recognised by BMW as being insufficiently robust. Let's see how it's goes Last edited by Jrsimp78; 10-01-2016 at 11:03 AM.. Reason: Error
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10-03-2016, 01:11 PM	#6
Jrsimp78 New Member 11 Rep 22 Posts Drives: 535i se auto saloon Join Date: Oct 2015 Location: Spalding Uk iTrader: (0)	Fist long run since the boost control valve was change. No issues so far and the general performance seems better and more responsive. Not counting any chickens yet 🐔🐔🐔
	Appreciate 0 Quote

10-03-2016, 02:43 PM	#7
Secret_Asian Private First Class 31 Rep 113 Posts Drives: f10 lci luxury line Join Date: Jul 2014 Location: philly iTrader: (0)	post up the part number you purchased
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10-12-2016, 12:30 PM	#8
Jrsimp78 New Member 11 Rep 22 Posts Drives: 535i se auto saloon Join Date: Oct 2015 Location: Spalding Uk iTrader: (0)	Hi . all isstill looking good Old part no=11747584628 New part no =11747626351
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