Greetings Benz Lovers,

I'm trying to butter you up because this topic has been hashed over several time already, but I can't seem to find all the posts for it. I feel that I am getting too early of a shift from 2nd to 3rd, like right after one comes the other. In most cases from a dead stop it seems that the car starts out in 1st gear, rapidly to 2nd then plunk into 3rd before 25mph and 4th will draw out until about 37-40mph. This seems almost to early of a shift from 2nd to 3rd. What adjustment can be made to draw the shifts out a bit in order to keep rpm's up a bit more? I would also like to know if during an incline grade, if anyone out there is getting a downshift vacuum wise from the tranny without having to engage the downshift button? I managed to get my '80 300TD to shift flawlessly with inclines etc. but it is a mechanical set-up that was pretty easy to adjust for proper shift points. Any ideas out there on the easiest or correct way to attempt this adjustment, please give me a holler.

Charles

__________________
"Tell me and I will listen, Teach me and I will learn, Show me and I will accomplish, Involve me and I will succeed."
'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan

Greetings,

I know that there are several folks out there that know the answers, so don't hold out on me.

Charles

__________________
"Tell me and I will listen, Teach me and I will learn, Show me and I will accomplish, Involve me and I will succeed."
'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan

Can do

This is a common problem and there are many posts on this. I suspect most of us are tired of typing these answers and that is why we are attempting an easier way of coagulating the posts by topic. Please do a search using words like shifting or transmission or vaccuum or modulator.

I think this is what I would do first.
I am assuming that there is a vaccuum modulator on the trans.
One cheap and easy thing to do on a W123 is, pop the white vaccuum cap off the modulator and replace the O-ring. This gives a good vaccuum seal and the modulator works like new!

__________________
Ed
1981 300CD (Benzina)
1968 250 S (Gina) 266,000 miles!
1983 Alfa Romeo GTV6 (Guido)
1976 Jaguar XJS-saved a V-12 from the chevy curse, what a great engine!
1988 Cadillac Eldorado (better car than you might think!)
1988 Yamaha Venture (better than a Wing!)
1977 Suzuki GS750B
1976 Yamaha XS 650 (sold)
1991 Suzuki GSX1100G (Shafty Gixser)
1981 Yamaha VX920RH (Euro "Virago")
Solex Moped
1975 Dodge P/U camper


"Time spent in the company of a cat, a beer, and this forum, is not time wasted!"

Greetings All,

If you are one of the many that run across this post looking for tranny shift adjustment or quality there of, try the following site for instructions. WWW.mercedesdismantlers.com as they rebuild them and explain how to do adjustments.

Charles

__________________
"Tell me and I will listen, Teach me and I will learn, Show me and I will accomplish, Involve me and I will succeed."
'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan