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  #1  
Old 08-01-2002, 09:34 AM
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Location: Indianapolis
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300E Trans Flaring

I have been fighting with flaring in the shift from 2nd to 3rd. The vacuum modulator is new. It has been adjusted several times and the flaring continues. The vehicle has about 150K miles and every other function of the trans is smooth and tight. Is there a band adjustment that can be made to fix the flaring? I recall reading somewhere that a tech from Peter Schmid suggested that this was a very early sign of the trans needing to be rebuilt. He suggested that once the bands start to get hung up it was a sign of expensive things to come.

Can anyone verify that there is a temporary band adjustment that is possible?
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  #2  
Old 08-01-2002, 09:50 AM
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Have you had the control pressure cable properly adjusted??
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  #3  
Old 08-01-2002, 09:53 AM
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My tech has played with advancing the shift time and delaying the shift time, it corrected it to some extent, but the flaring lives on! It only flares when its cold, once the fluid heats up, it shifts better.
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  #4  
Old 08-01-2002, 11:23 AM
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Well??. Try a fluid and filter change...Also, have the operating pressures checked.
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1989 300e
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No matter what you fix, there will always be something else to fix..
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  #5  
Old 08-01-2002, 05:42 PM
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I have had the trans fluid flushed 4 times in the last two months and the filter was also changed the on the first flush. Its very frustrating... I can live with the flare if I have to, but its disappointing to think that it can't be fixed without rebuilding the whole trans.
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  #6  
Old 08-01-2002, 05:49 PM
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I'd have another tech look at it before condemning the transmission. Find someone who knows MB transmissions. The vacuum modulator could be out of adj or the Bowden cable as was suggested earlier.

How's the fluid level? 10mm below cold line at first start-up and at the max line after 15-20 miles on the highway?
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  #7  
Old 08-02-2002, 09:54 AM
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Mike: The fluid is right on the cold line. Should it be below the line? If so, what does this affect?
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  #8  
Old 08-02-2002, 11:45 AM
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MB maint manual indicates that on a cold start-up, the fluid should be 10mm below the lower line(cold measurement). Once fully warmed up(15-20 miles of driving), the line should be at the top mark.

I've heard it said here and on other sites that the most accurate measurement is taken when warm. I'm not a professional tech., but from my experience, I see the same whether the measuremnt is taken cold or warm. If I measure cold and it's 10mm below the cold line, it will also be right on the upper line(hot measurement) after 15-20 miles of driving.

I suppose yours could be slightly over-filled. I recently paid to have some work done and after picking up the car I discovered the tech had over-filled the transmission. The fluid was a good inch to inch and a half above the full line for a hot measurement. I didn't notice any difference in shift quality, but I did immediately remove the excess by draining some from the transmission pan. In my case that involved the removal of a drain plug accessed with a 5mm allen head wrench.
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  #9  
Old 08-02-2002, 03:21 PM
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A great resource might be www.transonline.com.

Once there, on the left side, click TransID; ID your trans and it should have all the help you need.

Good luck!
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2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
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  #10  
Old 08-03-2002, 12:41 AM
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David, I just tried the www.transonline.com and it wouldn't come up. Are you sure of the spelling? It sounds like an interesting site.
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  #11  
Old 08-03-2002, 04:47 AM
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I just tried www.transonline.com, and it worked for me??


**2 minutes later**
I just clicked on the link, and it wouldn't work either... hmm? I just typed it in and it works for me, so give it a try.

or http://www.transonline.com
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #12  
Old 08-03-2002, 04:51 AM
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Exclamation SOLVED! CLICK THIS!

Ok, the http seemed to do it!

http://www.transonline.com
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #13  
Old 08-03-2002, 09:57 PM
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Join Date: Mar 2002
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There was a DTB on the .3 trannys doing this. K2 accumulator spring kit. Available for about 5 bucks from Benz. Follow the instructions in the kit or if you can find them I'll fax you a blow up of the valvebody and the accumulators location. There also is a kit for 3-4 upshift.

However, its its been doing this for awhile, the clutch pack is probaly worn and the apply piston leaking as well whichh means overhaul time. Do yourself a favoe, KEEP the old spring and piston as you'll want them if you do overhaul it. I fought one for a couple days with a super hard 2-3 shift that turned out to have this kit in the valvebody. Once I reinstalled the old style spring and valve in K2 accumulator it shifted great.


Joe
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