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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 01-26-2014, 12:50 AM   #1
cineplex
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Join Date: Jul 2010
Location: Milpitas, CA
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My Ride: 2003 M3 Coupe LSB
Need a little help on identifying a tube under the engine block

Hi guys, so this is my first post after lurking around the E46 forums, I am currently following a DIY guide found here to change the cooling system on my car and during the process I noticed a tube under my engine bay that is severely out of shape and I don't know what this is because by looking at it, man it sure looks like I need to replace it, whatever it is.

so some details here
Car: 2005 - 325Ci - Manual - 120K miles and going strong

In the 1st picture you can see I circled the coolant drain bolt on right. The tubes in question are circled on the left side.

In the 2nd picture, I changed the lighting a little bit and you can see the tube surfaces already started to peel off and I don't know how long that rubber stuff will last. Whatever the tube does, I doubt I want leaky holes when my car is running.

So if someone knows what that tube is called, part number, and what it does it would be great. Looking at the thing it seems to rout back to one of the pulleys ....I am still new to this DIY thing and so far I only did battery change, oil change, and belt changes on my own.
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Old 01-26-2014, 12:54 AM   #2
taveet330i
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Its the power steering cooling lines

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Old 01-26-2014, 01:24 AM   #3
cineplex
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Quote:
Originally Posted by taveet330i View Post
Its the power steering cooling lines

[bimmerapp]
Thanks man! Now I will need to google this up....it sure looks like I have to get it changed soon.

Hopefully it is possible to do DIY for this.
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Old 01-26-2014, 01:43 AM   #4
taveet330i
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I changed mine out a few weeks ago since it was pissing a leak. Quite easy once you can trace the lines back to the pump.

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Old 01-29-2014, 01:57 PM   #5
Tangent_
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Power steering pressure hose assembly. #3 on this diagram. The cooler - or rather the sad excuse for a cooler - is a hard line that's in essentially the same shape but in front of the radiator. (#10)
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