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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 12-16-2013, 02:53 PM   #221
TerraPhantm
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Fwiw the crimp connections do have a limited number of insertions/removals according to TE Connectivity, and it is certainly plausible that closing the terminals a bit helps remedy the wear they get with use
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Old 12-16-2013, 02:59 PM   #222
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Quote:
Originally Posted by TerraPhantm View Post
Fwiw the crimp connections do have a limited number of insertions/removals according to TE Connectivity, and it is certainly plausible that closing the terminals a bit helps remedy the wear they get with use
I've never actually examined them, so I have to take other's word. But with decades of connector experience, the lack of quality here would certainly put these connectors at the bottom of the design ladder if they are so vulnerable to fail. I'd be ashamed if I put these into a BMW. I've not seen fails like this on all the cheapy crappy cars I've worked on over the years.
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Old 12-17-2013, 01:21 PM   #223
silverh20
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Anybody have updated pictures of the procedure? I just read the OP and the pics don't load anymore.
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Old 12-24-2013, 09:30 PM   #224
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I've got some bucking under accel and upon closer inspection my VC gasket is leaking onto the connector. I cleaned it off and crimped in the connectors a little. No difference. So I guess I'll get a Vanos seal kit, an rattle kit, a VC gasket set, and spark plugs since I've gotta remove the coils anyways.
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Old 12-25-2013, 11:44 AM   #225
DRD2
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So far

So I went back and *systematically* cleaned and adjusted each connector on the exhaust side of the VANOS. The problem is noticeably better, but not gone. Intake side next...
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Old 01-07-2014, 11:35 AM   #226
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Had The Same problem.... Check your ignition coils probably #3 or #6
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Old 01-20-2014, 11:17 AM   #227
watches chrono
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I'm having the same problem too. I changed the vanos gaskets about two weeks ago. The cold weather idle stop for a while, but has now started back and I'm getting this hesitation. Wat to do?

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Old 01-24-2014, 10:50 AM   #228
BigMaineWomen
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Anybody have updated pictures of the procedure? I just read the OP and the pics don't load anymore.
m3fan, would you be able to locate your photos for this? I'm not familiar enough under the hood as i need to be and i am having stuttering issues on take off. I would really appreciate it, thanks.
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Old 01-24-2014, 11:30 AM   #229
Stinger9
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Checked out Beisan site for better pics?
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Old 01-24-2014, 12:02 PM   #230
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Checked out Beisan site for better pics?
Thanks, i looked through and it looks like some of the applicable pictures are here and there within this page: http://www.beisansystems.com/procedu..._procedure.htm

I'm going to see if i can put it together and post the ones needed. It is a little misleading though because the picture with the vanos exhaust solenoid connector for example has the valve cover gasket off in it.
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Old 01-24-2014, 12:09 PM   #231
Stinger9
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come back and ask questions if you need.
many many of us here have done this.
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Old 01-24-2014, 01:15 PM   #232
BigMaineWomen
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Okay, this is what i found for pics and will be cleaning later. It looks like there is certainly more you can do (Flashmeow did:MAF, DISA, Exhaust Camshaft Sensor, Exhaust Camshaft solenoid, Intake Camshaft Sensor, Intake Camshaft solenoid, and crankshaft sensor connectors.) but this seems to be the basics.

For the MAF, i am going off of: http://www.bimmerfest.com/forums/sho...d.php?t=214439 (he cleans his power steering fluid first, you can skip this)

This next bit is from the beisan systems double vanos replacement procedure.

Remove vanos exhaust CPS (camshaft position sensor) electrical connector. Press in on side clips and pull off connector.
Note: If connector difficult to remove, pry out connector from end (tack lifter).

http://forum.e46fanatics.com/attachm...1&d=1390587086

Remove vanos exhaust solenoid electrical connector. Press in on metal clip and pull off connector.

http://forum.e46fanatics.com/attachm...1&d=1390587086

Remove vanos intake solenoid electrical connector. Press in on metal clip and pull off connector.

http://forum.e46fanatics.com/attachm...1&d=1390587086
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Old 01-24-2014, 05:06 PM   #233
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Well that wasnt as much fun as i thought it would be. Tight spaces and those connectors dont like coming off at 220K. My boxes didnt seem real loose but sprayed them out with electronics cleaner and let them sit for a half hour. I pinched them a little closer but i cant imagine that would have any effect on bucking. Heading home and i will report back in a couple hours. Sometimes taking off in first it will jump around and remind me of the first time i ever drove a stick. that poor corvette!
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Old 01-24-2014, 05:46 PM   #234
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Look forward to your feedback. I'm always a skeptic on this one.

Are you driving a stick here?
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Old 01-24-2014, 06:37 PM   #235
BigMaineWomen
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Quote:
Originally Posted by Stinger9 View Post
Look forward to your feedback. I'm always a skeptic on this one.

Are you driving a stick here?
Yes a 5spd. I was pretty skeptic while doing it. I have NOT done the VANOS seals, so i didnt really know what to expect. Honestly, it really seems like a smoother take off. A lot of stop and go with the 5:00 traffic and i had one start that was about half as bad as most of my starts this morning. Most everything else was butter. I wouldnt bet my life that it helped but it certainly didnt make it any worse. Pulled nice and strong. I dont get on it very often but the butt dyno says it is going great. I'd say it was an hour well spent.

Last edited by BigMaineWomen; 01-24-2014 at 07:27 PM.
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Old 01-25-2014, 11:56 PM   #236
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DRD2 im just like you very reluctant to take to any shop and hate paying stupid prices.

Ive been chasing the same problem with p0171 and p0174 misfire codes.

Changed the following, spark plugs, coils, fuel filter, fuel pump, valve cover gasket, dipstick o ring, maf (slight improvement), disa valve (helped idle and revs dropping too low), ccv (helped cold start), vanos seals (brought back low end torque)...

Should have started with vacuum leaks first because after I did the manifold gasket there was a lot of improvement!

Ive got 1 pre cat o2 sensor to do next, (have a code), hoping this clears the problem completely even though car is running pretty good now.

OFHG on the way to fix a leak. Intake boots I may replace as well even though they show no signs of cracking and look original.

Running out of parts to replace... but enjoying learning about the car along the way!
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Old 01-26-2014, 10:47 PM   #237
watches chrono
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Did yall clean the connections points to vanos? I just did this today, and I runs perfect.

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Old 01-27-2014, 08:26 PM   #238
Evo Panda
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I've had bucking and hesitation issues under 2k RPM for a while even though my VANOS was done only 10,000 miles ago. I just finished crimping the connections on the MAF, DISA, and intake/exhaust VANOS solenoids. Didn't get a chance to clean the electrical connections (I have no electrical cleaner) and I haven't cleaned the MAF yet but I'll see if this has made a difference tomorrow and report back!
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Old 01-27-2014, 10:19 PM   #239
watches chrono
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Trust me, I was puzzle and lost too. Since I cleaned the connections it runs prefect. Idle great start up fine in cold everything.

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Old 01-28-2014, 03:43 PM   #240
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Alright reporting back. Felt no difference whether the engine was cold or warm. Still have the hesitation and bucking, I'll try cleaning all the connections and I'll do the ICV connection this time too (and report back again).
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