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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 08-15-2016, 08:05 PM   #1
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Join Date: Aug 2016
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My Ride: 01 330i
Worth another flush???

Been reading forums from years ago on "limp mode" and so on.... That how I got this far (Tks btw) short and sweet... Busted resivor tank... When she went I drove less than 100 ft and parked it... External heated changer had a crack.. Coolant and tranny fluid looked like a strawberry milkshake... Have ran roughly a dozen quarts of castol import thru and filled to best of knowledge from what I've read... No longer have fluid transfer issues but seems it's running hot and keeps throwing itself into limp mode... I'm disappointed but to be honest when I seen water was in tranny I figured I was screwed anyways.... Now it's in limp mode and I can no longer get it to come out.. All the times before I could wait it out and it would go away... Did have generic codes pulled.. Only ones to concern me was p0741 and p0734... Also have the maa air flow and a p0505... The trans kit and selenoid have been ordered... Is it worth spending the $$$ on another flush before I drop pan and change selenoid and pray for the best.. R should I just put that with the $$$ it's going cost me for at the least a new torque converter!?

Last edited by Cuzz; 08-15-2016 at 08:24 PM.
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Old 08-15-2016, 10:26 PM   #2
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My Ride: '02 Orient 330i/5
I'd take it to a trans shop before throwing any more money at it. Coolant in an auto trans will ruin all sorts of things... Valve bodies, governor, you name it.

At some point, if it hasn't already, it will become more economical just to swap in a known good used or rebuilt trans. Or better yet, do a manual swap!

Current: '02 330i/5 '06 XC90 '72 240Z
Past: '85 RX-7 GSL-SE '95 540i/6 '95 525i/5 '86 635CSi/5 '88 JZA70 '86 4K quattro '85 RX-7 S
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Old 08-15-2016, 11:00 PM   #3
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Did u install a new transmission cooler?
A mechanical hobbyist and car enthusiast
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Old 08-16-2016, 12:56 AM   #4
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1. Which E46 model do you have?
2. What fluid have you been putting into your transmission?
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Old 08-16-2016, 06:32 PM   #5
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I flushed and filled with castol multi vehicle import... I did put new trans cooler cost right around $70.. I cleared code with my "el cheapo" scanner and car is out of limp mode.. Drove it a few miles still slipping and going back into limp mode but I can cut ignition and then crank back up and it's off.. Don't know if it's getting worse r better.. One thing I noticed thou is that as soon as I put trans fluid in and drain it it comes out burnt like it has been ran for 50,000 + miles... Guess I'll know more when trans kit gets here and I drop the pan!! Oh and it's an 01 330i with sports package!!

Last edited by Cuzz; 08-16-2016 at 06:33 PM.
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Old 08-16-2016, 07:14 PM   #6
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Wish I could afford the swap but looks like we gonna have to go the most efficient fix on this one!!
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Old 08-19-2016, 08:57 AM   #7
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Why is a swap to a manual transmission always suggested in transmission problem threads? most people who bought auto transmission cars don't want to screw around with a clutch and shifting, I know I don't.
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