hard shift

i have a mercedes w116 with a converted 300td(om603) from a w124 -92 with a transmission with a number of 722.320.. And it shifts very hard (even when it's warm). I think it's maybe don't get any vacuum to the transmission and thats why it shifts so hard? or maybe am i wrong, so it get to...

Hi. Well I have been trying to sort out harsh gear changes on my 2000 SL320 for a little while now - so any help would be appreciated. Sorry if this is a little long, but just want to try to get everything relevant down. The symptoms The harsh changes are not constant - it can also...

HI! I drive a 1997, E 200 and last year it started to thump out of 1st gear into 2nd. Sometimed even from 2nd into 3rd. The thumps were often so powerful I'd feel the rear wheels loose traction for a sec! On gravel it would skid for a sec. I was advised to do a range of things by a...