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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 08-06-2012, 03:36 AM   #21
farukh
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Originally Posted by Solidjake View Post
Yup right away I noticed it. I'm about 400 miles in already.

Slight fuel economy improvement, quieter idle, rpm doesn't bounce back when you're in neutral press the gas hard and let go, definitely more power in the low rpm range. I swear, I don't even push the gas so hard and it can hit 100 like that. Really is worth doing. I'm a believer.
Damn that's what I have now with these rpms... As soon as I let go of gas on lower rpms, car start jerking... You got the ones from beisian also?
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Old 08-06-2012, 03:54 AM   #22
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Old 08-06-2012, 06:55 AM   #23
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The only real thing you need to pay attention to is the two 'opposite' turning bolts holding in the pistons. When you get to the pistons, be sure to loosen them by turning clockwise. I knew from the instructions that they were there, but in the 'heat of battle' I started to turn them the wrong way...saw the chains move and worried I'd affected timing...coz I didn't know. Called Raj and he assured me I was fine...and I was.

Very easy to do once vc is off. Get new vanos gasket from dealer...that's about it. Beisan's instructions are perfect!

BTW, I also didn't notice any difference.

Finally, as far as the comment about Raj making millions...I really doubt it. Even if Raj gets the seals for pennies on the dollar, he's not only saved us $$$, but he did ID the issue, source replacement seals, maintain a website, support us here online, and 'live' if you run into an issue. To save $250 or more, I think his pricing is reasonable.
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Old 08-19-2012, 09:22 AM   #24
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When you get to the pistons, be sure to loosen them by turning clockwise.
which step is this in the instructions..I think I'm gonna do this. I hear that rattle between 2-3 rpm. Thinks it's vanos.wish there was a good video on it. I'm more of a visual learner. The step "Remove 2 O2 sensor cable brackets at fuel rail." is a little confusing but maybe when I open it up I'll see what they are talking about. any help or gotchas is appreciated before I start..
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Old 08-19-2012, 09:58 AM   #25
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is that step even required? All the valve cover gasket video, I don't seem them messing with the ""Remove 2 O2 sensor cable brackets at fuel rail."
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Old 08-19-2012, 11:02 AM   #26
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is that step even required? All the valve cover gasket video, I don't seem them messing with the ""Remove 2 O2 sensor cable brackets at fuel rail."
You don't actually mess with the O2 sensors, you just move them out of your way with their wires and stuff.
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Old 08-19-2012, 11:19 AM   #27
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is that step even required? All the valve cover gasket video, I don't seem them messing with the ""Remove 2 O2 sensor cable brackets at fuel rail."
O2 sensor brackets and cable are at the bottom seciton of the valve cover, not at the fuel rail. You just need to get the wires out of the way so you can get the valve cover off. Pull forward and up, it pops right out, then just disconnect the ground wire (8mm nut) and pull it out of the way. 10 second part of the process and nothing to worry about.
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Old 08-20-2012, 09:00 PM   #28
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I guess I didn't research this enough but it seems that if I hear a rattle that I need the anti-rattle kit as well?
Replacing the seals will not get rid of the rattle? If I would of known I would of just spent extra money
on Dr.Vanos. I don't like the sanding procedure in the anti-rattle kit.


any suggestions?

Last edited by fanatic128; 08-20-2012 at 09:01 PM.
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Old 08-20-2012, 10:47 PM   #29
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I guess I didn't research this enough but it seems that if I hear a rattle that I need the anti-rattle kit as well?
Replacing the seals will not get rid of the rattle? If I would of known I would of just spent extra money
on Dr.Vanos. I don't like the sanding procedure in the anti-rattle kit.


any suggestions?
If you don't like the sandpaper method (I don't blame you), sell the seals in the classifieds and buy the Dr VANOS or VAC motorsports kit. IMO, it's worth twice the money to have a properly rebuilt unit. I used the VAC unit in my 330ci, and I used the Dr VANOS single VANOS unit in my E36 M3 a number of years ago. I can vouch for both being good products. I did the VAC unit in my 330ci recently, and it both quieted things down and give the car a noticeable boost in power.
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Old 08-26-2012, 07:09 AM   #30
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I read in another forum that the Biesan allows you can get a better fit because you can customize the axial play
but of course as I mentioned you need to sand the washers yourself as needed. Does Dr Vanos
have more Axial play or do they come pretty well fit? I would think that they test the units from some type of model or
something.

Last edited by fanatic128; 08-26-2012 at 07:10 AM.
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Old 08-26-2012, 07:29 AM   #31
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yes, vanos seals made all the difference in sluggish acceleration.
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Old 08-26-2012, 10:41 AM   #32
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Not sure didn't notice much.
But the old seals were clearly plastic when they should be like rubber.
I fixed something I guess.
+1

I'm glad I did them though. I think I got a few 10ths better on my MPG, but other than that I didn't notice anything. It was a fun and easy DIY and I would still HIGHLY recommend everyone doing them.
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Old 09-02-2012, 07:52 AM   #33
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Doing this as soon as I get back to the states
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