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Discussion Starter · #1 ·
All of you, try this cheap fix for MY 00 and newer<br>Look at and/or replace the piston servo<br>PN 30751262 This is a 12.00 part and takes 5 minutes to replace. (side of transmission)<br>A KNOWN problem with AsianWarner transmissions. They have already gone through 3 different designs of this part.<br>My service manager said he can't believe how many were fixed using this very cheap fix
 

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Re: Another thing to look at if your (AisenWarner, 5 speed) auto tranny is shifting weird (JRL)

Jim,<p>What are the specific symptoms if this part fails?<p>
 

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Re: Another thing to look at if your (AisenWarner, 5 speed) auto tranny is shifting weird (JRL)

Is this that good old B4 servo cover problem affecting 2-3 upshift? The serial number range for this TNN was not very big, not covering my tranny even though manufactured in fall '00.<p>By the way, do you know if the old valve body problem affects also 3-4 shifts? Mine slips, and it feels like it could be the actual clutches going bad not just the control system, since the catching up is gradual, not a jerk like in the 2-3 shift.<BR><BR>
<i>Modified by Mika at 1:21 PM 3-29-2006</i>
 

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Re: Another thing to look at if your (Mika)

Did this today while I was up for some other work. It has made a huge difference for me.......all shifts are much smoother. I used to have a noticeable jerk when shifting into drive that is now gone and right on up through the gears, much smoother. <p>Part cost was $11.81 <br>Labor cost $36<p>If you take your driver-side front wheel off, look through to the engine bay, almost straight behind the shock tower is the location of the part. One compression ring is all that has to be removed to take the old one out, a little transmission fluid will probably drip until you put the new one in. One really noticeable difference in the part itself was the old one had only 2 O-rings while the new one has 3 the spring in the unit itself was much stronger in the new one, but that could be attributed to the age of the old one and it being weaker as a result of that.
 

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Re: Another thing to look at if your (Maynard)

has anyone else tried this fix? My transmission seems to be downshifting pretty harsh. In stop and go traffic, it becomes really annoying. The dealers claim everything is fine, but it sure doesn't feel that way.<p>This fix should work on an '02 right? For some reason I thought the B4 servo only applied to '01s..<p>Thanks.
 

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Discussion Starter · #6 ·
Re: Another thing to look at if your (MayoDR)

It can't hurt to have a look at it if you're having a shifting problem.<br>This absolutely bargain part can make a difference.<br>AisenWarner has gone through 3 different designs on this small part.<br>When you remove it, if it sort of "falls apart" it's bad
 

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Re: Another thing to look at if your (JRL)

JRL:<p>Is this part only for the R och is it for any FWD/AWD autos ?<p>and what exactly is it located ? whats is the old partnumber for it?
 

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Discussion Starter · #8 ·
Re: Another thing to look at if your (Rick_K)

ALL Asian Warner 5 speed automatic transmissions, 00 thru 06<br>Left side, easier to get at if you remove the L/F tire<br>Aw gees, read the first post please
 

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Re: (Rick_K)

They didn't reset anything following the installation on my car. Whether or not they were suppose I have no clue.
 

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Discussion Starter · #11 ·
Re: (Rick_K)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Rick_K</b> »</i></TD></TR><TR><TD CLASS="quote">JRL: cool. I will replace this on my S60 AWD.<p>Do you know if I have to reset the adaption afterwards? </TD></TR></TABLE><br><B><br>There's no reason to replace</B> it unless it is bad and <B>your trans is acting up.</B><br>When it's removed, apparanty it's very obvious if it's bad, it sort of semi-disintegrates in your hand and the washer is crushed.<br>As for an adaptation, I do not know, probably not
 

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Re: (JRL)

Can someone say if this is the same part that is changed in the "SHIFT QUALITY ISSUES DUE TO B4 SERVO COVER FAILURE, 2-3 UPSHIFT HARSHNESS OR FLARE" TN?
 

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Re: (aquarius)

I did this also to my car this morning. The 2nd-3rd shift is now very smooth as also are other shifts. One mistake happened during the operation. As we were putting the new cover back in place the outmost O-ring went broken. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"> ..Damn...But as someone already told, this new cover has 3 O-rings and I hope that the 2 O-rings will keep the tranny oil inside... So far I have not seen any leakage...<p>As I went for a test ride the first shift from 2nd to 3rd gear was very bad but I guess that it was just because the piston/oil was not settled properly there...now everything works just perfect. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Discussion Starter · #14 ·
Re: (aquarius)

Yes and yes. That was the part and that is what happens. <br>I said it would disintgrate when removed.<br>I would try it again, ($12.00 part) and be a bit more careful
 

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Re: (JRL)

I ordered a new part and it will be replaced next monday...The guy in the local Volvo dealer was a bit suprised because at least 3 of these parts were ordered today...I hope they will keep the price low as it is a really cheap fix for a lot of problems...Or then they will charge 3000$ for that part in the future... <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Re: (aquarius)

I was wondering if the piston should also be changed or is the cover all that needs to be changed? Someone told something about a spring but I did not see any spring in the part. There is a spring in the piston which is under the cover <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0">
 

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Re: Another thing to look at if your (AisenWarner, 5 speed) auto tranny is shifting weird (JRL)

A little history for my '01 T5:<p>My 2-3 shift has been getting progressively worse and worse over the last month or so. After 10 - 15 minutes of driving, if I accelerate very hard at all, the 2-3 shift takes 2 - 3 seconds. It feels like the clutches themselves are slipping. In either automatic, or in GT mode, same deal.<p>I took it to the local dealer yesterday to have the stop-neutral removed and picked up this part at the same time. Installed it last night, and the 2-3 shift problem is completely gone. I did a 30 minute test drive, running up and down the gears the whole time and everything shifted crisp and smooth just like it should.<p>The stop neutral seemed to fix the constant clunking and lurching at low speed, turning corners in the development and such, but the 2-3 shift problem was still there. This new cover seems to have fixed that though <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"><p>BTW, there are 3 o-rings with the cover, but I'm certain only 2 are for the cover, just like the original. The cover does have 3 grooves, but if you look close, the middle groove is not really an o-ring groove. It's narrower and there are high spots in it that hold the o-ring out too far so the cover won't go in.<p>The 3rd o-ring I think is for the piston itself. The piston will drop out of the hole if you're not careful and I noticed it uses the same size o-ring so I used the 3rd one for that.<p>Getting the cover on is a bear though. You have to push the cover in, compressing the spring behind the piston, and then hold it there while you get the circlip back in to hold the cover. A lift or a helper would make it much easier. I ended up using a 2 ft long prybar that I could stick in from the wheel well and hold the cover in with my right hand while I put the circlip in with my left. <p>Anyways, I've *very* happy with the shift quality now. It feels like a new transmission...<p>--Dan
 

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Re: Another thing to look at if your (houlster)

Is this something that the dealer has to replace or can it be done in my garage without any software problems, etc?<p>
 

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Re: (aquarius)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>aquarius</b> »</i></TD></TR><TR><TD CLASS="quote">I was wondering if the piston should also be changed or is the cover all that needs to be changed? Someone told something about a spring but I did not see any spring in the part. There is a spring in the piston which is under the cover <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> </TD></TR></TABLE><p>Reading the VADIS bulletin on replacing the B4 cover it tells me that the aforementioned piston is unique to each gearbox and cannot be replaced. Something to do with calibration. You would have to replace the whole 'box if the piston is damaged so be careful and put down lots of cardboard first. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"> <br>There is a hole below the B4 cover into which you can fix a M10x80mm bolt which you can then use as a lever point for a pry bar. Make sure you thoroughly clean and dry the area before dismantling.<br>With regards to the washers/O-rings. There are 2 on the edge of the B4 cover that seals it and the third one sits on top of the piston, this is the one that fails causing the gearbox problems.<br>Once all replaced there is no need to have the adaptation reset as the repair affects 3rd and 4th gear. That's why the 2-3 gear change is vastly improved afterwards.<p>Anyway, quick question back to the forum. Is there a part number for removing the Stop Neutral Control from the gearbox as I'd like to have mine removed.
 

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Re: Another thing to look at if your (AisenWarner, 5 speed) auto tranny is shifting weird (JRL)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>JRL</b> »</i></TD></TR><TR><TD CLASS="quote">All of you, try this cheap fix for MY 00 and newer<br>Look at and/or replace the piston servo<br>PN 30751262 This is a 12.00 part and takes 5 minutes to replace. (side of transmission)<br>A KNOWN problem with AsianWarner transmissions. They have already gone through 3 different designs of this part.<br>My service manager said he can't believe how many were fixed using this very cheap fix</TD></TR></TABLE><p>Would this apply to my 2004 R model?
 
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