Wastegate Vacuum Lines - 68,000 miles.

ETS Michael · 08-05-2012, 12:04 PM

Just a little heads up. If your starting to get wastegate rattle and if you have a decent amount of miles. Check the lines that go to the wastegate actuators to the boost solenoids. Both of mine had cracks and 1 was really bad and causing the wastegate to rattle. Once we replaced the vacuum lines the car feels like new again. No rattle, no hesitation, no popping exhaust note only pure enjoyment now.

The code I was throwing was 30FF (not hitting target boost if i remember correctly)

Thanks!

Michael

ETS Michael · 08-05-2012, 12:06 PM

Searched and found this thread. Exact same deal.

http://www.e90post.com/forums/showthread.php?t=546560

Thanks!

type rrr · 08-05-2012, 12:51 PM

thank's for the info

CrazyNole21 · 08-05-2012, 01:20 PM

Thanks for the info. Do you think those lines get cracked over time due to snow/salt on roads up there? Not sure if those lines are covered underneath. My 335i is from PA/NY area so Im wondering if I have the same problem at 49k miles, car was up in NE area from 0-33k miles.

marv85 · 08-05-2012, 01:29 PM

Thanks for sharing. Would you mind also posting part numbers? I've been having wastegate rattle recently so it's worth a try.

Rotorocious · 08-05-2012, 01:53 PM

Might as well replace with higher temp resistant silicone hoses

Bme30 · 08-05-2012, 02:08 PM

Quote:

Originally Posted by Rotorocious

Might as well replace with higher temp resistant silicone hoses

Mine too, 38k miles and a florida car.

jpsimon · 08-05-2012, 06:33 PM

this sounds exactly like symptoms I'm seeing. good thing I just ordered a bunch of vacuum line

gatoracer · 08-05-2012, 07:17 PM

Good to hear. About how long did it take to replace? And what would you consider your level of mechanical ability?
I have a slight rattle too, as I am sure most N54 owners have had or will have. I'll probably try to tackle this myself in the upcoming weeks.

PINeely · 08-05-2012, 07:29 PM

Quote:

Originally Posted by gatoracer

Good to hear. About how long did it take to replace? And what would you consider your level of mechanical ability?
I have a slight rattle too, as I am sure most N54 owners have had or will have. I'll probably try to tackle this myself in the upcoming weeks.

Replacing all of the engine vacuum lines in mine took about 20 minutes and 7 feet of vacuum line. I have smaller hands so if you cant get your arm down into the engine bay you may have to lift the car and drop the belly pan to access the wastegate connections.

doraemon · 08-05-2012, 07:48 PM

Stock car? I heard by installing aftermarket downpipe such as AR can cause wastegate rattle? I may be wrong.

gatoracer · 08-05-2012, 07:50 PM

Quote:

Originally Posted by PINeely

Replacing all of the engine vacuum lines in mine took about 20 minutes and 7 feet of vacuum line. I have smaller hands so if you cant get your arm down into the engine bay you may have to lift the car and drop the belly pan to access the wastegate connections.

Thx. That's pretty reassuring. Doesn't sound too complicated. Probably a silly question, but you just replaced two lines correct? One for each turbo? I know cars typically have all kinds of vacuum lines, but I assume since we are discussing the turbos, it would only be two...

Jeff@TopGearSolutions · 08-05-2012, 07:51 PM

Quote:

Originally Posted by doraemon

Stock car? I heard by installing aftermarket downpipe such as AR can cause wastegate rattle? I may be wrong.

Aftermarket downpipes can't cause wastegate rattle. What happens is you dont notice the rattle until you get aftermarket downpipes then people blame the downpipes. The reality is you've likely had the rattle for a while but the downpipes allow you to hear it more.

The vac lines cracking are common practice on any platform.

PINeely · 08-05-2012, 08:09 PM

Quote:

Originally Posted by gatoracer

Thx. That's pretty reassuring. Doesn't sound too complicated. Probably a silly question, but you just replaced two lines correct? One for each turbo? I know cars typically have all kinds of vacuum lines, but I assume since we are discussing the turbos, it would only be two...

Only the WG lines were damaged but I went ahead and replaced all of the vacuum lines. The ones running across the engine which pass by the oil filter housing were on their last leg as well.

doraemon · 08-05-2012, 08:32 PM

Quote:

Originally Posted by Jeff@topgearsolutions

Aftermarket downpipes can't cause wastegate rattle. What happens is you dont notice the rattle until you get aftermarket downpipes then people blame the downpipes. The reality is you've likely had the rattle for a while but the downpipes allow you to hear it more.

The vac lines cracking are common practice on any platform.

Ahh I see, thank you for clarifying : )

Wedge1967 · 08-05-2012, 08:50 PM

Haha, Kuni just replaced mine. Actually tried to call you a few weeks ago when I had the issue... Good to hear your car is fixed also... We need to take a road trip....

Quote:

Originally Posted by ETS Michael

Just a little heads up. If your starting to get wastegate rattle and if you have a decent amount of miles. Check the lines that go to the wastegate actuators to the boost solenoids. Both of mine had cracks and 1 was really bad and causing the wastegate to rattle. Once we replaced the vacuum lines the car feels like new again. No rattle, no hesitation, no popping exhaust note only pure enjoyment now.

The code I was throwing was 30FF (not hitting target boost if i remember correctly)

Thanks!

Michael

Thumperx · 08-05-2012, 10:21 PM

I've experienced the worst from this vacuum line issue, engine replacement. Here's my response from a another earlier thread:

http://www.e90post.com/forums/showth...ghlight=vacuum (post #4)
http://www.e90post.com/forums/showth...ghlight=vacuum (pictures included)

Short story, one of my vacuum line was disconnected. This lead to the rear bank of cylinders to be over pressured. The over boost cause a small cylinder liner crack in #6 and misfire. Not aware of this issue, I had my coolant changed, and the mechanics did not purge the air from the system correctly. I drove the car for 190 miles which over heated the engine. Overheating the engine exacerbated the crack to further enlarge. Coolant pours into the cylinder chamber. Engine is DONE.

Here's a quote from my mechanic's e-mail to me, "I just noticed that there is an Apexcone ballast (HID units for the fogs lamps) under the vacuum chambers on the passenger side. When taking it apart, there was a vacuum line hanging. The vacuum line leads to one of the vacuum chambers for your wastegates, the nipple on vacuum chamber was broken off the vacuum chamber".

So be aware and check this out.

ETS Michael · 08-06-2012, 01:19 PM

It's the nature of the beast with vacuum lines and a hot engine bay. It's amazing how well the car drives now. On most vehicles (not speed density from the factory) you can tell when you have a vacuum leak because the car will instantly want to die. On speed density the car will run/idle with an intercooler pipe missing.

Thumperx · 08-06-2012, 02:04 PM

Another sign was the turbo whine. I had turbo'd cars before, and chalked it up to nature of the beast. But when I got the car back and now, NO whine what so ever.

tofu- · 08-06-2012, 02:12 PM

scary.

your car was overboosting THAT much and didn't hit limp mode?

i found it extremely odd that my car didn't throw any codes at all either when my vac line was leaking

Quote:

Originally Posted by Thumperx

I've experienced the worst from this vacuum line issue, engine replacement. Here's my response from a another earlier thread:

http://www.e90post.com/forums/showth...ghlight=vacuum (post #4)
http://www.e90post.com/forums/showth...ghlight=vacuum (pictures included)

Short story, one of my vacuum line was disconnected. This lead to the rear bank of cylinders to be over pressured. The over boost cause a small cylinder liner crack in #6 and misfire. Not aware of this issue, I had my coolant changed, and the mechanics did not purge the air from the system correctly. I drove the car for 190 miles which over heated the engine. Overheating the engine exacerbated the crack to further enlarge. Coolant pours into the cylinder chamber. Engine is DONE.

Here's a quote from my mechanic's e-mail to me, "I just noticed that there is an Apexcone ballast (HID units for the fogs lamps) under the vacuum chambers on the passenger side. When taking it apart, there was a vacuum line hanging. The vacuum line leads to one of the vacuum chambers for your wastegates, the nipple on vacuum chamber was broken off the vacuum chamber".

So be aware and check this out.

uniter · 08-06-2012, 02:31 PM

Your dealer should carry the cloth covered vacuum line

blisstik · 08-06-2012, 02:34 PM

Would you lose boost if there's a leak? If I have the rattle and not losing boost, is this still a probable cause?

08-05-2012, 12:04 PM	#1
ETS Michael Major 76 Rep 1,155 Posts Drives: 335i Join Date: May 2009 Location: Vancouver, WA iTrader: (4)	Wastegate Vacuum Lines - 68,000 miles. - Both Cracked, 1 really bad Just a little heads up. If your starting to get wastegate rattle and if you have a decent amount of miles. Check the lines that go to the wastegate actuators to the boost solenoids. Both of mine had cracks and 1 was really bad and causing the wastegate to rattle. Once we replaced the vacuum lines the car feels like new again. No rattle, no hesitation, no popping exhaust note only pure enjoyment now. The code I was throwing was 30FF (not hitting target boost if i remember correctly) Thanks! Michael
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08-05-2012, 12:06 PM	#2
ETS Michael Major 76 Rep 1,155 Posts Drives: 335i Join Date: May 2009 Location: Vancouver, WA iTrader: (4)	Searched and found this thread. Exact same deal. http://www.e90post.com/forums/showthread.php?t=546560 Thanks!
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08-05-2012, 12:51 PM	#3
type rrr Second Lieutenant 12 Rep 232 Posts Drives: 335i coupe Join Date: Apr 2012 Location: montreal canada iTrader: (0)	thank's for the info __________________ 2007 335i coupe AT-- I80AS--FBO -stock turbos--COBB v402 beta stage 2 + ATR-- NITTO'S 275-40-17 NT05R --- 12.025 @ 120 mph -- full weight
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08-05-2012, 01:29 PM	#5
marv85 Colonel 71 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	Thanks for sharing. Would you mind also posting part numbers? I've been having wastegate rattle recently so it's worth a try. __________________ '18 F80 M3 Comp 6MT - Stock '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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08-05-2012, 06:33 PM	#8
jpsimon Team Zissou 3084 Rep 10,198 Posts Drives: 2022 AWD M3 Comp - SMB Join Date: Dec 2006 Location: CT iTrader: (7)	this sounds exactly like symptoms I'm seeing. good thing I just ordered a bunch of vacuum line
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08-05-2012, 01:20 PM	#4
CrazyNole21 Phizzle 15 Rep 317 Posts Drives: 07 BMW 335i Join Date: Jan 2012 Location: Florida iTrader: (15)	Thanks for the info. Do you think those lines get cracked over time due to snow/salt on roads up there? Not sure if those lines are covered underneath. My 335i is from PA/NY area so Im wondering if I have the same problem at 49k miles, car was up in NE area from 0-33k miles.
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08-05-2012, 01:53 PM	#6
Rotorocious Lieutenant Colonel 103 Rep 1,520 Posts Drives: 335xi Join Date: May 2010 Location: Colorado iTrader: (3)	Might as well replace with higher temp resistant silicone hoses
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08-05-2012, 07:17 PM	#9
gatoracer Private First Class 12 Rep 106 Posts Drives: '07 335i MT Join Date: Apr 2012 Location: Jax, FL iTrader: (1)	Good to hear. About how long did it take to replace? And what would you consider your level of mechanical ability? I have a slight rattle too, as I am sure most N54 owners have had or will have. I'll probably try to tackle this myself in the upcoming weeks. __________________
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08-05-2012, 07:48 PM	#11
doraemon Private 6 Rep 68 Posts Drives: 2008 E90 335i JB4 Join Date: Feb 2011 Location: California iTrader: (0) Garage List 2008 BMW E90 335i [0.00]	Stock car? I heard by installing aftermarket downpipe such as AR can cause wastegate rattle? I may be wrong.
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08-05-2012, 10:21 PM	#17
Thumperx Major 88 Rep 1,404 Posts Drives: 335I coupe Join Date: Oct 2009 Location: SE Michigan iTrader: (77)	I've experienced the worst from this vacuum line issue, engine replacement. Here's my response from a another earlier thread: http://www.e90post.com/forums/showth...ghlight=vacuum (post #4) http://www.e90post.com/forums/showth...ghlight=vacuum (pictures included) Short story, one of my vacuum line was disconnected. This lead to the rear bank of cylinders to be over pressured. The over boost cause a small cylinder liner crack in #6 and misfire. Not aware of this issue, I had my coolant changed, and the mechanics did not purge the air from the system correctly. I drove the car for 190 miles which over heated the engine. Overheating the engine exacerbated the crack to further enlarge. Coolant pours into the cylinder chamber. Engine is DONE. Here's a quote from my mechanic's e-mail to me, "I just noticed that there is an Apexcone ballast (HID units for the fogs lamps) under the vacuum chambers on the passenger side. When taking it apart, there was a vacuum line hanging. The vacuum line leads to one of the vacuum chambers for your wastegates, the nipple on vacuum chamber was broken off the vacuum chamber". So be aware and check this out. __________________ Name: Blanca \| 07 E92 \| AW-Blk \| ZSP \| Alcon BBK \| M3 Bits \| VM RR Links \| Koni \| UUC Sways \| V5 \| Dinan CAI \| ETS IC \| Fge DV \| ER CP \| Cyba \| Raden. Exh \| Mod Step \| Trunk Drawer \| Perf LED Wheel \| Illum Dr Sills \| IS Shifter \| Parrot \| Philps D1S \| 6000k fog \| MTECH RR \| CSL Trunk \| Aero \| Roof Spoiler \| PSS on BBS RS-GT 19s Last edited by Thumperx; 08-06-2012 at 02:04 PM..
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08-06-2012, 01:19 PM	#18
ETS Michael Major 76 Rep 1,155 Posts Drives: 335i Join Date: May 2009 Location: Vancouver, WA iTrader: (4)	It's the nature of the beast with vacuum lines and a hot engine bay. It's amazing how well the car drives now. On most vehicles (not speed density from the factory) you can tell when you have a vacuum leak because the car will instantly want to die. On speed density the car will run/idle with an intercooler pipe missing.
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08-06-2012, 02:04 PM	#19
Thumperx Major 88 Rep 1,404 Posts Drives: 335I coupe Join Date: Oct 2009 Location: SE Michigan iTrader: (77)	Another sign was the turbo whine. I had turbo'd cars before, and chalked it up to nature of the beast. But when I got the car back and now, NO whine what so ever. __________________ Name: Blanca \| 07 E92 \| AW-Blk \| ZSP \| Alcon BBK \| M3 Bits \| VM RR Links \| Koni \| UUC Sways \| V5 \| Dinan CAI \| ETS IC \| Fge DV \| ER CP \| Cyba \| Raden. Exh \| Mod Step \| Trunk Drawer \| Perf LED Wheel \| Illum Dr Sills \| IS Shifter \| Parrot \| Philps D1S \| 6000k fog \| MTECH RR \| CSL Trunk \| Aero \| Roof Spoiler \| PSS on BBS RS-GT 19s
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08-06-2012, 02:31 PM	#21
uniter Black on Black on Black. 38 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	Your dealer should carry the cloth covered vacuum line __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::BIEHNTUNE FLASH::ETS 7" FMIC::RACELAND DPS::OS GIKEN 1.5 WAY::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV
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08-06-2012, 02:34 PM	#22
blisstik Lieutenant Colonel 155 Rep 1,677 Posts Drives: E92 Join Date: Jul 2009 Location: California iTrader: (14)	Would you lose boost if there's a leak? If I have the rattle and not losing boost, is this still a probable cause?
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