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Old 04-26-2014, 07:33 PM   #1
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Join Date: Nov 2013
Location: West London
Posts: 10
My Ride: 330ci M Sport
Unhappy Oil Leak in Vanos Unit/ Selonoid

Hi All,

I have a major problem where I've tightened the screw below too tight (see pics), causing a crack in the Vanos unit/block/solenoid which oil is now leaking through as soon as I start up the engine.

Rookie mistake, didn't have my torque wrench at hand, decided to use a normal T40 torx, now ruing that decision. As soon as I saw the crack forming, I stopped and loosened it back but it was too late.

Car is currently really not drivable as oil is oozing out quite rapidly through that crack and pouring down on to the cam belt and anything else below.

I've been advised chemical metal or JB Weld could provide a temporary fix by sealing up the crack, which I'm going to pick up first thing in the morning and apply, but just wondering if anyone knows a more permanent fix for this? Will it need welding? Will I need to replace the whole vanos unit (if thats what this is...)? I have to assume the crack goes all the way around but this is all thats visible from the top.

Appreciate any help.

E46, 330ci, 52 plate, 63k miles, 0w30 castrol edge, oil change done less than a month ago.

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Old 04-26-2014, 07:40 PM   #2
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Join Date: Dec 2009
Location: Alabama
Posts: 366
My Ride: 2000 328i
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Looks like you might need a new VANOS. Might be able to pick up a used unit and rebuild it with the upgraded seals kit.

What were you doing with it in the first place?
Encryption76 is offline   Reply With Quote

330ci, leak, oil, vanos

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