My 300SDL transmission slips off a rolling stop. If I make a solid stop for 1-2 seconds and then take off, no slipping occurs. The other sympton which seems related is when manually downshifting, the transmission won't down shift unless I accelerate. It almost seems as if when decellerating, the transmission is not engaged. Problem started in the last 2000 miles or so.

Otherwise, transmission works fine. No flaring between gears, shifts are smooth etc. Fluid level is correct; 10k miles on fluid, 96k miles on the car. Vacumm to transmission seems fine.

I will change the fluid/filter; are there any other things I can fix/adjust?

Thanks.

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as ever
Paul

1989 560SL
1987 300SDL
1987 300TD
1983 BMW 633CSi
1972 280SE 4.5

When the fluid was changed 10K ago, was the filter changed, too? Was the Torque Convertor drained when the fluid was changed?

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daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

Yes (and torque converter drained).

as ever
Paul

If all other shifts/gears work fine, that indicates operating pressure (front pump) is good. No indiation of B2 trouble, as that is DELAYED engagement--but then full/normal lock--at all times in forward gear.

I'm suspicious of something wonky with the bowden cable. It provides signal for coasting/downshifts as well as upshifts.

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James Marriott
2003 Buick Regal
1983 300D (228k, frau Auto)
1996 Suburban K2500 (192k, 6.5 turbo diesel/4WD towmaster 10,000)
www.engineeringworks.biz
1987 300SDL junker 170k
1982 300SD junker, 265k

I suspect low pressure, probably due to internal leaks. The pressure is probably normal as the engine speeds up (and thus the pump also speeds up). Could also be a weak pump.

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Gone to the dark side

- Jeff