Not sure if 83 has vacuum or Lektronik CC. If vacuum, it won't work
without the speedo. I know my 81 is vacuum, and SDLs and 124 are
Lektronik. Somewhere inbetween they switched over, but since 123 was
near EOPL, they may have just kept the vacuum for all the 123s, and
especially the 240D, since it reached EOPL a couple years before the
rest of the 123s.
Karl Wittnebel via Mercedes wrote on 12/6/18 5:46 PM:
U probably need a cruise amplifier or rebuild, but fix the speedometer
first. Im not sure if the amp takes the signal from the cluster or from the
drivetrain sensor directly on that car.
On Thu, Dec 6, 2018, 3:21 PM Michael Esh via Mercedes <mercedes@okiebenz.com
wrote:
1. Brakes are now all in good repair and stopping me safely.
2. Trying to sort out vacuum issues. A. Repaired two door lock lines
that were broken at the drivers side door.
B. Can’t get transmission to shift properly. Shifts way to soon unless I
shift manually. I’m getting about 20 off the large vacuum line going to the
booster. Eliminated vacuum to the transmission and shift timing was better
but harsher and it won’t shift into 4th gear at all. Does anyone know
what vacuum number is supposed to be at the transmission, before the
modulator but after the restrictor?
Does anyone have vacuum diagram for the 83 240D?
3. The speedometer is not registering anything. It’s hooked up at the
transmission but I haven’t checked the dash yet. Cruise is not working.
Will cruise control function on this car if all else is correct but
speedometer is not functioning?
Thanks,
Mike
Michael E. Esh
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