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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 05-15-2017, 11:03 AM   #401
Mango
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Funny I see this pic, I was just telling a co-worker with an 08 that I wish I had just cherry picked the engine and tranny and did everything at once. May have took me more than a month, but it'd be worth it.
yeah. the one above is a completely built high horsepower super beast (I think 800+) with what looks like a racing tranny. i forget. he has a few high end builds and documents every step. But a nice reference pic to see behind the engine.
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Old 05-15-2017, 11:15 AM   #402
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yeah. the one above is a completely built high horsepower super beast (I think 800+) with what looks like a racing tranny. i forget. he has a few high end builds and documents every step. But a nice reference pic to see behind the engine.
Only if I had the money and time to transplant that into my E46. Talk about sleeper!
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Old 05-16-2017, 02:14 AM   #403
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Originally Posted by veli510 View Post
it's most likely leaking at the firewall. there is two hoses for the heater core. you need to take out the cabin filter and the compartment where the cabin filter sits in. you should change those hoses soon or it will bust and car will overheat and you will or may damage the head gasket.

you don't want that to happen.
Thanks for your response & @jmo62.

That would make sense from where its dripping. I'll need to look into how to get the filter & housing out. If you have any tutorials then please do link me. Otherwise I'll let you know how I get on. Cheers guys!
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Old 05-16-2017, 01:03 PM   #404
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Thanks for your response & @jmo62.

That would make sense from where its dripping. I'll need to look into how to get the filter & housing out. If you have any tutorials then please do link me. Otherwise I'll let you know how I get on. Cheers guys!
The cabin filter is held in place with 4(?) T-30 torx screws. You'll have to move the wiring harness that's attached to it, there's just plastic clips that hold it.
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Old 05-22-2017, 09:00 PM   #405
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All the oil was contained to the lower part of the engine bay. The top half vfrom pump down was dry, after pulling inspection cover on the bottom all the high pressure hoses were a mess and mechaniC said good luck ,but the oil level was proper after driving 600 mi at 80 to 85 mph. Will figure bit out but little things first . CEL. APPRECIATE THE GOOD WRITEUPS. THANKS GUYS
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Old 05-22-2017, 09:06 PM   #406
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Your ignorance is astounding - Seriously bad advice - take this advice and you will be spending money needlessly and making matters worse.

Here's why:

The most common point of failure on the PS reservoir is the thin o ring on the cap. It fails and fluid leaks from the cap. The most common reason for failure of the ring is contaminants on the mating surface from removal and replacement by the owner.

TIP: The better techs wipe both mating surfaces with a clean rag before putting the cap back on.

The second most common reason for leaking at the reservoir is overfilling.

The filter that we refer to is not really a filter in the sense that it has deteriorating components - it is a wide metal mesh that can be washed out with a little cleaner once the reservoir is removed.

An o -ring should NOT be changed as preventative maintenance - neither should you be removing the PS reservoir to periodically rinse out the metal strainer - why? you are more likely to damage the power steering hose connections from frequent removal and replacement and then you will have leaks less visible that may lead to substantial costly damage such as steering rack failure

So in summary - frequent changing of this part is more likely to cause damage than replacing the o-ring when required.
Hi All,

Over the last 5 months I have replaced the Radiator then the Expansion Tank cracked on me a couple months later. I had about 2 months of no leaks and found 2 spots of fluid on the floor today. Stopped to check my Oil (which was OK) and I found this:


I am not yet having any cooling issues, I wouldn't have known if I didn't have to park the car on the street for another project.

I had to drive it tonight and still have not received any coolant lights or even seen more coolant leaking. It sure looks like it was the cap. I had drove it on the highway pretty fast for me last Thursday I have no idea when the leak started, I am the last out and 1st in so no one ever gets to see it unless I am paranoid and check.

I figured that I would check the coolant level in the AM and wipe down the cap. I don't know if I didn't bleed the system right and overfilled or if after 15 years and 140,000 miles the cap o-ring gave out. Don't remember hearing any popping sounds.

Again no over heating or noticeable steam. If I did overfill it did I hurt the cooling system or just toast the cap?

Thanks for all the great posts and information in this thread. I have referenced it many times before.

Steve

Edit: This morning I checked the coolant level, it was showing full but I noticed dried coolant around the inside of the top of the expansion tank opening and around the cap. I cleaned it up and put the cap back on. Guess I will have my guy pressure test it again for a busted head gasket and either way will get a new cap. Still no sign of fresh leaks I drove it a lot yesterday.

Last edited by Broncosteven; 05-23-2017 at 12:48 PM.
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Old Yesterday, 10:39 AM   #407
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Hunting a leak

Great thread I have looked/read through as much of the thread as I can. and need some help find a leak. 2002 325Ci that has been leaking pretty good into the under-pan for about 3 months. I de-greased and cleaned up the underside last weekend, and checked last night and it looks like the oil is leaking/dripping from this (photo below). It kind of looks like it might be coming down from the oil-filter housing, but was looking for thoughts and options before I started ripping things apart.. Thanks again for the help. Dan
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Old Yesterday, 11:13 AM   #408
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At this age/mileage, EVERYTHING is busted and torn rotted and twisted. EVERYTHING. Redo all the common stuff that leaks on these cars.
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Old Yesterday, 04:55 PM   #409
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Great thread I have looked/read through as much of the thread as I can. and need some help find a leak. 2002 325Ci that has been leaking pretty good into the under-pan for about 3 months. I de-greased and cleaned up the underside last weekend, and checked last night and it looks like the oil is leaking/dripping from this (photo below). It kind of looks like it might be coming down from the oil-filter housing, but was looking for thoughts and options before I started ripping things apart.. Thanks again for the help. Dan
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10 Ford GT 401a 5sp 17k miles
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Old Today, 12:49 AM   #410
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^ Great Video. Thanks for sharing.
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