The 4 speed transmission on my beloved '95 E300 is shifting hard when going slow from 1-2 and then from 2-3. However when I goose it, it shifts fine. I 've done the searches here and read the Bentley E Class bible about this transmission too.

The question is I don't know if it is a vacuum problem or a modulator problem. I don't have the set up to check the modulator or check the vacuum. I read that one needs to check the vacuum where it connects to the transmission? I'd like some prior information before brining it to my car guy in town.

Oh - the thing shifts great going from drive into reverse too - nice and clean, fast.


thanks!

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dtf
1994 E320 Wagon (Died @ 308,669 miles)
1995 E300 Diesel (228,000)
1999 E300 Turbodiesel ( died @ 255,000)
2006 Toyota Tundra SR5 AC 4X4 (115,000 miles) rusted frame - sold to chop shop
2011 Audi A4 Avant (165,000 miles) Seized engine - donated to Salvation Army
BMW 330 xi 6 speed manual (175,034 miles)
2014 E350 4Matic Wagon 128,000 miles
2018 Dodge Ram 21,000 miles