Relocated Boost canisters and found crack in Valve cover.

Lambobimmer · 07-06-2015, 09:16 PM

I am preparing for the installation of my new TFT inlets so I found some time this afternoon to relocate my boost canisters. I also ran some new vacuum hoses. Should I keep the blue hoses or change to black. I ran out of Blue so I am going to have to buy more Blue or Black hose. I am unsure if I like the Blue hose or not. My window washer reservoir will sit in this same location and will hide some of this.

I also noticed that I have a small crack in my valve cover. My Z4 has about 48k on it so I guess that I shouldn't be surprised that it is cracked.

Rich- · 07-06-2015, 09:24 PM

I had an identical crack, I jb welded it, and it ended up not being able to get jb weld over all of the area, so beings I needed to pull it I just replaced it.
ecs tuning gave me free shipping which saved like $30 since it is a huge box.
I think they have free shipping over $200 now.

pharoh · 07-06-2015, 10:25 PM

I had an identical crack in the same spot as well. Must be a common failure point...

924er · 07-06-2015, 10:27 PM

I just replaced my valve cover due to it being cracked at 44k miles. Thought it was only leaking from the gasket since the crack wasn't visible like yours. It's about $300 for parts.

It's more common than you think, these boosted engines always have these issues. It will crack again

MMMCOOKIES55 · 07-08-2015, 03:31 PM

yep, same here, cracked at 52K. It took me an hour to replace it. Its really not hard.

HooDat · 07-08-2015, 05:20 PM

where do you buy your hoses?

Nexic · 07-08-2015, 05:24 PM

Had the same crack in the same place at 55k. Seems very common, parts were ~$300 or so and I installed it myself in a few hours (was being cautious).

stashtrey · 07-08-2015, 05:31 PM

I have a used valve cover if anyone wants to save some $$! Also have a brand new gasket I'd throw in.

07-06-2015, 09:16 PM	#1
Lambobimmer Major 303 Rep 1,473 Posts Drives: 2022 X3 M40i, 2018 TTRS Join Date: Jan 2010 Location: Tarheel iTrader: (14)	Relocated Boost canisters and found crack in Valve cover. I am preparing for the installation of my new TFT inlets so I found some time this afternoon to relocate my boost canisters. I also ran some new vacuum hoses. Should I keep the blue hoses or change to black. I ran out of Blue so I am going to have to buy more Blue or Black hose. I am unsure if I like the Blue hose or not. My window washer reservoir will sit in this same location and will hide some of this. I also noticed that I have a small crack in my valve cover. My Z4 has about 48k on it so I guess that I shouldn't be surprised that it is cracked. Attached Images
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07-06-2015, 09:24 PM	#2
Rich- Private First Class 12 Rep 138 Posts Drives: 2010 335xi 06 A3 S-line 3.2 Join Date: Jan 2015 Location: Sioux Falls SD iTrader: (3)	I had an identical crack, I jb welded it, and it ended up not being able to get jb weld over all of the area, so beings I needed to pull it I just replaced it. ecs tuning gave me free shipping which saved like $30 since it is a huge box. I think they have free shipping over $200 now.
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07-06-2015, 10:25 PM	#3
pharoh Private 3 Rep 56 Posts Drives: 2010 335i Join Date: May 2014 Location: Phoenix iTrader: (4)	I had an identical crack in the same spot as well. Must be a common failure point...
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07-06-2015, 10:27 PM	#4
924er Colonel 352 Rep 2,049 Posts Drives: e92 335i '10 Join Date: Feb 2014 Location: Socal iTrader: (0)	I just replaced my valve cover due to it being cracked at 44k miles. Thought it was only leaking from the gasket since the crack wasn't visible like yours. It's about $300 for parts. It's more common than you think, these boosted engines always have these issues. It will crack again __________________ '10 e92 N54 DCI intakes, ER chargepipe, TIAL BOV, VRSF 5in FMIC, BMS Downpipes COBB e30
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07-08-2015, 03:31 PM	#5
MMMCOOKIES55 Major 350 Rep 1,376 Posts Drives: '17 M3 ZCP/ '16 ATS-V Join Date: Oct 2009 Location: Apex, NC iTrader: (3)	yep, same here, cracked at 52K. It took me an hour to replace it. Its really not hard.
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07-08-2015, 05:20 PM	#6
HooDat First Lieutenant 34 Rep 355 Posts Drives: e92 335xi 2008 \| c63s amg 2019 Join Date: Sep 2014 Location: Va iTrader: (1)	where do you buy your hoses? __________________ 2008 \| e92 \| 335xi \| 6MT \| VRSF FMIC\| VRSF DPs \| VRSF CP \| S&B DCI \| FORGE DV \| MHD Tune \| BMW PE 2019 \| w205 \| C63s AMG
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07-08-2015, 05:24 PM	#7
Nexic BMW DIY'er 17 Rep 50 Posts Drives: 2010 335i Join Date: Mar 2013 Location: Texas iTrader: (3)	Had the same crack in the same place at 55k. Seems very common, parts were ~$300 or so and I installed it myself in a few hours (was being cautious). __________________ 2010 335i Sapphire Black - BMS JB4 G5 / RB Turbos / BMS Trunk Meth kit / CM10 and CM5 Nozzle / VRSF Downpipes 3" v2 / VRSF 7" FMIC / BMS Charge Pipe / Forge DVs, Koni Yellow / H&R Sport / Wavetrac LSD / M3 Upper and Lower control arms / H&R sway bars
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07-08-2015, 05:31 PM	#8
stashtrey Lieutenant Colonel 295 Rep 1,834 Posts Drives: 08 E90 335xi TiAg Join Date: Dec 2012 Location: Sacramento, CA iTrader: (8) Garage List 2008 E90 335xi Sedan [0.00]	I have a used valve cover if anyone wants to save some $$! Also have a brand new gasket I'd throw in.
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