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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 01-24-2016, 04:28 PM
airwrenchBKL airwrenchBKL is offline
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Location: Cleveland, Ohio
Join Date: Jun 2014
Posts: 44
Mein Auto: BMW 325 XI
OK, now I'm sure it's the head gasket

I posted last night about my trouble during the filling of my cooling system: and good people responded, Thank you! I read a sticky on another forum that was very helpful to me.

The first thirty feet of my driveway is a pretty steep hill, so I parked the car on it with the front end a good foot higher than the rear. According to this persons suggestion and using his method, I removed the cap and bleeder screw from the tank and poured the antifreeze until the system was full and the bleeder port was clear of air (ignition on, heater controls set at high). I have about an eight mile route to the other end of town and back. On the first trip I was just about a 1/4 mile from home and the low coolant light came on, so I came home and stopped on the hill, shut down, opened up the tank and bleeder, and re filled it must have been just low enough to light the light, about a pint.

The next test drive I did my 8 mile trip twice and by passed my home. Then drove about another 3 miles to the freeway. I drove about 5 miles on the freeway, got off and back on again. The OBD said the temp was just about 190, and the panel gauge was straight vertical. About 3 miles on: the heater started blowing cold air, I looked down at the OBD and it was at 250! I was off the freeway in a flash, parked, and tried to fill the expansion tank. the expansion tank was filled to the top, I opened the bleeder screw and got nothing but steam. After awhile I poured a half a gallon of antifreeze into it and drove a half mile home, the temp on the OBD was just touching the red zone when I got in the garage.

I'm guessing that the coolant is going through a cylinder/s. At this point I don't have the time to deal with the repair, I'll sleep on it though. What's a best guess at a price
to remove the head and do all of the usual and customary repairs?
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Old 01-24-2016, 04:50 PM
smolck's Avatar
smolck smolck is offline
Location: Birmingham, AL
Join Date: Jul 2007
Posts: 22,433
Mein Auto: 2004 ZHP Sedan
I'd check that The tstat isn't sticking. Also, if the gasket is blown that bad, your oil should look like chcolate milk. Does it?

Check out my YouTube Channel for DIY's and other fun stuff HERE
Originally Posted by Fast Bob View Post
now, go burn your Man Card, and buy yourself a Camry....
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Old 01-25-2016, 12:09 PM
airwrenchBKL airwrenchBKL is offline
Registered User
Location: Cleveland, Ohio
Join Date: Jun 2014
Posts: 44
Mein Auto: BMW 325 XI
No oil contamination

No there is no oil contamination. The engine is running as it never has before; too. Nice idle, good smooth acceleration. It just seems to be running too good to have anything majorly wrong with it.

I mentioned the the aux fan switch seems wonky in the lower radiator hose, spins around, and the connector on the probe waggles a bit. I ordered a new one last night so it will be at my work tomorrow. I'll install it and re-service the system. I have never seen any leakage from it, and the electric fan has been working OK. But: it always has coolant all over it

This has all gone on since I replaced the water pump which was leaking out of the shaft seal. It was the water pump: and I did hoses: which came with new switches, a thermostat, expans ion tank, and an expansion tank mounting bracket.

Before I started the engine I replaced the cam angle sensor, and the CCV canister broke, so I did the CCV thing too. cabin and air filters.

Meanwhile I have rear suspension and brake stuff sitting on the shelf. I found the left parking brake components were gone from the backing plate, and the shocks are rust rotted out. It's never ending.
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