1969 280S torque converter and transmission - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 04-17-2010, 04:56 PM Thread Starter
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Date registered: Jun 2009
Vehicle: 1969 280S, 1999 E320, 2002 E430W
Location: Poughkeepsie, NY
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(Thread Starter)
1969 280S torque converter and transmission

I purchased this car last year. It had been in the same family since 1969. The car is in reasonably decent shape considering its age. Since I bought the car I had all the fluids replaced, got the odometer fixed and tuned up the car (plugs, points, etc.) It has passed the inspection. The next item on the agenda is the torque converter which is leaking oil, there is also oil leak from the transmission area. My mechanic is very good (he repairs my other foreign made cars) and very detail oriented. Has anyone else gone through this experience before? Any words of wisdom?
Thanks in advance.
Mete Kantar
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post #2 of 3 (permalink) Old 04-18-2010, 09:53 AM
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Date registered: May 2007
Vehicle: 64' 220SEc, 72' 300SEL 6.3, lots of parts
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Chances are after this many years that the seals have expired.

All rotating shaft seals have a lifespan.

Have a "soft Parts" kit installed in your trans.

Check your front crankshaft and power steering pump seals.

Brian O
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post #3 of 3 (permalink) Old 04-18-2010, 03:42 PM
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Date registered: Jun 2004
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Depending on ther transmission,some were fluid coupler and some were torque convertor ,there is a 5 mm allen drain plug on the coupler/convertor housing which can leak . There are also two lines which route trans fluid to the cooler,these also leak with age. Check your trans fluid level with the trans hot and running over a week and record the use of fluid. if it's not using fluid you may have rear crankshaft seal leak. If fluid use indicates a fluid leak,then you will need to have the trans removed and the leak fixed.
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