Hey All,

Changing out fuel injectors next weekend and wanted to flush the SLS system. Right now it's brown I assume from oil mixing in. Rear height is good and doesn't lift on start up. For the life of me though I can't figure out how to flush the system other than siphoning out fluid out of the reservoir. There has to be a drain plug somewhere, right?

Thanks for the help.

Put the return line into a container, run the system while adding fresh fluid to the reservoir until the fluid runs clear.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

What's the capacity of the system, approximately?

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

For the 87 300td, manual says 2.1qt for the capacity.

Thanks much Kerry, pulled the hard line return off the top of the reservoir and fluid was being pushed out, so at least the pump seems to be working. Going to try to flush with the ISO 46 tractor hydraulic that folks seem to say is identical to the Febi stuff.

Will running the pump alone flush the entire system? Is there a way to flush what's in the struts?

Sixto
87 300D

Put a hefty wench on and off the back bumper to get the valve to open and fluid flowing to and from the accumulators and struts.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

it's been stated that the ISO46 is not the same, it will work, but the shell aero is a better match.
What type of Hydraulic oil goes in the SLS system?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!