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#1
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420SEL Transmission
I checked my transmission fluid last week because I was feeling some slipping occasionally and jerking when I gave it gas around the corner. Well, nothing showed up on the dipstick. I've added three quarts since then and it still doesn't show up on the dipstick. I cannot believe the transmission could be this low and still work as well as it does. I'm just afraid that for some reason I will overfill the tranny. Does anyone know how many quarts from nothing showing up on the dipstick until it shows full on the dipstick? Thanks
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1984 300SD Orient Red/ Palomino 1989 560SEC 2016 Mazda 6 6 speed manual 1995 Ford F-150 reg cab 4.9 5speed manual |
#2
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The oil pan on the 722.3 trans only holds 3.6L of fluid.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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So where could this fluid be going? There is slight seepage from the pan, but never any dripping, and it does not smoke. could it be going into the torque converter if it was low?
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1984 300SD Orient Red/ Palomino 1989 560SEC 2016 Mazda 6 6 speed manual 1995 Ford F-150 reg cab 4.9 5speed manual |
#4
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If you don't see fluid on the ground?? then thru the modulator.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#5
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And where from there?
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1984 300SD Orient Red/ Palomino 1989 560SEC 2016 Mazda 6 6 speed manual 1995 Ford F-150 reg cab 4.9 5speed manual |
#6
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E150GT, please let me know the final result of your investigation. I have the same car you do, and my tranny leaks a bit, too. I sure don't understand where all that fluid is going, either.
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#7
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you have a vacuum line from the back of the intake manifold,on the pass side of centre,that goes down to the modulator valve on the left side of trans.it is a combination of metal and rubber/silicon line.if you remove from mod you will prob see trans fluid in it.the engine is sucking the fluid out of the trans and burning it.replace the mod valve and all will be well with the world.
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg |
#8
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Well double checked today. It's definitly smoking. I never noticed it though until I put it in neutral and gave it gas.
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1984 300SD Orient Red/ Palomino 1989 560SEC 2016 Mazda 6 6 speed manual 1995 Ford F-150 reg cab 4.9 5speed manual |
#9
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I have not verified this for myself, but a tech that replaced my modulator told me that he once saw a car with a bad modulator that smoked when it made right hand turns (the modulator being on the left side of the transmission).
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1993 400E, 256,000 miles (totaled) 1994 E420, 200,000+ miles 1995 E420, 201,000 miles |
#10
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420sel Transmission
I came across a link once on the 722.3 tranny that showed exploded views on top of the page with descriptions and MB part numbers listed below each view.
Like an idiot I didn't book mark the link. Anyone know whrere I can find this. It would be very helpful when ordering parts. Sometimes Phil, etal. gets confused. TIA Dave |
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