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Old 04-11-2012, 03:08 PM
Dave Horvath's Avatar
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Join Date: May 2000
Location: Ohio
Posts: 132
Transmission Help

I have a 96 S320 140.000 miles
8 weeks ago the transmission started to slip. I had the car towed to a local indy for repair, that was 5 weeks ago. I was told the transmission has been in and out about 6 times by 2 different shops (my shop had it taken to another shop after they could not repair it). Now I was told the trouble is that the transmission locks up when going into reverse. Whats so different about this transmission that 2 shops are having trouble.
2009 CLS550 55,000
2004 ML350 144,000
2004 X5 95,000
2002 X5 165,000
1996 320S 155,000 (sold)
1991 190E 192,000 (sold)
1989 300SE 160,00 (sold)
1984 300D 210,000 owned since 85, (sold)
1984 300SD 160,000 (sold)
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Old 04-11-2012, 11:35 PM
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Join Date: Jan 2008
Location: Melbourne Australia
Posts: 834
They probably don't want to give you the bad news that the transmission requires a complete rebuild and that you will be out of pocket by some great amount of $$$$.
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Old 04-11-2012, 11:49 PM
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Join Date: Jul 2007
Location: USA
Posts: 2,156
sounds like the two shops cant grasp of how the 722.4/5 tranny works. whenever you have slip you are dealing with clutch packs wearing out, seals going. Ether way you are looking at a tranny rebuild .
1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)
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Old 04-12-2012, 12:49 AM
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Join Date: Apr 2012
Location: Minneapolis, MN
Posts: 44
Yup, needs a rebuild. If it locks up in reverse that isn't good at all. The K-2 engages to provide engine braking in reverse, but they might have the pressures turned up too high or something. The rebuilds on these aren't all that difficult, they really are rather simple transmissions. A good shop with guys who know auto trans. should be able ti figure it out...
MB Star certified, now independent.
Owner/Operator FDMotorsport Mpls. MN
Mercedes and GM certified transmission rebuilder
We all need a little help sometimes...

1998 E320 4MATIC-- stolen by my sister
1989 300TE-- sold
1999 C230 Kompressor
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