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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!

View Poll Results: Have you ever used Seafoam?
Yes, I highly recommend it. 51 37.50%
Yes, But I dont recommend it. 7 5.15%
No, But I have thought about it. 54 39.71%
No, I would never do it. 9 6.62%
No, I have mixed feelings about it. 16 11.76%
Multiple Choice Poll. Voters: 136. You may not vote on this poll

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Old 05-22-2008, 11:35 AM   #101
n2Bimmer
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do it, dont be scared, its really easy, but do not pull the vacumm line out of the plastic, just pull the plastic along with the tube. I was able to remove the tube by itself, and make sure you cover your MAF sensor. JUST DO IT.
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Old 05-22-2008, 11:36 AM   #102
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Did you change your plugs after you ran it through? From experience, it doesn't do good things to spark plugs.
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Old 05-22-2008, 11:52 AM   #103
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I did it - Everything went well for me too. I didn't take of the clamp - just pulled the entire hose off and then pushed it back in when I was done. I let the hose suck 1/3 of the bottle and put 1/3 in the gas tank and the remaining 1/3 in the oil.

Let the engine sit for 15 minutes and then started her up - it smoked for about 5 minutes and then it was done. I also changed the oil afterwards.

Honestly can't say I feel any difference - car been running fine - no issues.

It's been 5k now and gonna do another oil change and possible new plugs (Last changed 30k ago)
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Old 05-22-2008, 01:28 PM   #104
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i seafoamed 20000k before i changed my plugs.. they were fine when i pulled them just a little worn from 50k worth of use
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Old 05-22-2008, 01:33 PM   #105
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Quote:
Originally Posted by aggieE46 View Post
Did you change your plugs after you ran it through? From experience, it doesn't do good things to spark plugs.
same plugs here, i replace them at 50k miles, i now have 70k miles.
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Old 05-22-2008, 06:01 PM   #106
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i heard that the seaform messes your o2 sensors.
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Old 05-22-2008, 06:30 PM   #107
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i heard that the seaform messes your o2 sensors.
it doesnt mess it up, they just get dirty or something and it gives you a CEL sometimes but as you drive the deposits will go away as the light will too.
i recommend doing the sefoam DIY.
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Old 06-03-2008, 11:08 PM   #108
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Seafoam users: How many miles did you drive before changing oil?

Been considering cleaning the engine out using seafoam but I know you must get an oil change afterwards since it becomes contaminated after. I have read people saying they changed it immediately after and other saying they changed it within 3000 miles...

It seems to me like changing it immediately after could contaminate the new oil since there is still seafoam in your gas tank, which means that the gas that was in the car must be burned off completely.
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Old 06-04-2008, 01:32 AM   #109
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(Bump for later reference)

Also..

I was thinking that myself! I have been recently thinking about running seafoam through my car. I am still skeptical about the product, I read alot of mixed reviews and the possibility of a SES light....? IDK
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Old 06-04-2008, 01:43 AM   #110
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Same here...debating if I should put that stuff into the car......I just changed the oil...so i'll debate in another 7500 miles later...lolz
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6 Feet Under!....

to be continued......
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Old 06-04-2008, 07:25 PM   #111
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From what I read, it now seems like people who poured some of the seafoam in their crankcase changed their oil out almost immediately after.
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Old 06-04-2008, 07:36 PM   #112
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yeah, i would do it right away. also, change the spark plugs as well.
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Old 06-04-2008, 08:05 PM   #113
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my plugs are the same, 3k miles
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Old 06-04-2008, 08:46 PM   #114
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so correct me if I'm wrong but it is straight to put it in the oil which is the crankcase. I used it in my gas tank but I wanted to put in the oil too but I wanted to see if others have done it and if it worked
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Old 06-04-2008, 11:00 PM   #115
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Never did it to the BMWs, but seafoamed the VW and changed the oil right afterwards. Didn't pour it into the crankcase cause enough if it run through the brake booster will make it into the oil.
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Old 06-06-2008, 12:18 AM   #116
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Question Sea Foam + Brake Booster line.

Hey guys and gals. I need to know How to remove the brake booster tube on a pre-face lift 328i sedan. Where to spray it and what other locations to put it. I have the sea foam deepcreep.
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Old 06-06-2008, 02:39 AM   #117
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Shut the car off, and just yank at it hard. Wiggle it around and just pull. It'll come out after some convincing, it's hard because it is a vacuum line so it's going to be stuck on.

What I do is, put seafoam in a plastic cup, undo the brake booster line, and then just have a friend hold my RPMs at 2000 while I slowly let it suck in the seafoam a bit at a time. Sit the car for 15 minutes, start it up, and hold the revs up for a bit. It'll start sounding/feeling like it's choking, and you'll get some poopoo spewing out your exhaust.
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Old 06-06-2008, 02:41 AM   #118
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Quote:
Originally Posted by kpeng View Post
It'll start sounding/feeling like it's choking, and you'll get some poopoo spewing out your exhaust.
Yup just pull on it hard. It'll come out of that black metal pizza cylinder. Mine sounded like this when I started it after waiting 15 minutes:

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Old 06-15-2008, 06:44 PM   #119
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seafoam another car question

want to seafoam a minivan, plymouth voyager 96. can says spray in the throttle body if not port injected engine. not sure if this car is port injected or what that means. do I just take off the intake hosing going to the TB and spray little by little while the car is idling?
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Old 07-05-2008, 04:25 PM   #120
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hey rovert, did you change your spark plugs after this treatment?
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