My 300sdl with 286,000 miles on it is starting to have transmission
trouble. When the transmission is cold, it will come out of 3rd gear
but not go into 4th. It will just start over revving the engine. If
you give it heavy throttle to make the transmission kick down into
3rd, it will usually go into 4th, but not as smooth as it should. And
when going slow at times, the shifting in lower gears is not smooth.
You can feel the rear end hit when the gears shift.
My regular Mercedes mechanic has told me that Mercedes
transmissions cannot be rebuilt, replaced only. He said he could get a
used one with 100k miles on it from a newer car and total price
installed would be $1300 ($400 of that being labor). My previous MB
mechanic priced a new trans installed (18month warranty) for $2850. I
have seen prices online for (i assume ) factory rebuilt transmissions
from ADSITCO for $1400 and GERMANTRANSMISSIONS.NET for $1150, another
on-line dealer was $2050. Whith such a range of prices, what is close
86 300sdl 286k miles
80 450sl 218k miles
When was the fluid last changed?
Is the fluid up to the correct level and not over it?
Is the vacuum system in good shape?
When are you going to get a mechanic that knows the kind of car you are
MB transmissions have a lot of different things that can go wrong with
them that do not require a full replacement, especially the old 300
diesels. Any mechanic that just throws up his hands and says "new
tranny" does not know what kind of car you are driving :-)
Did the screens get changed with the service? Have you checked the fluid
level today? Your symptoms could be clogged screens, or an unintentional
over/under fill. Did you follow the correct procedure for checking the
fluid level? It has to be when the transmission is at operating
There is a secondary list of potential trouble shooting to go through
before considering changing anything actually in the transmission, but
they are pointless to pursue until the first checklist is completed.
Sorry if I bit a little hard, but I am tired of so called mechanics
going the replacement route rather than fix something, or even check to
see if it is a simple problem.
That was after all services and testing was done on it.
Having been trained and working for over 15 years in the only
certified Mercedes repair shop in all of East Germany, owning his own
Mercedes specialty and restoration shop for 20+ years, and rebuilding
other components (power steering box) that other Mercedes specialty
shops said were replacement only, if he says the tranny is toast, i'll
take his word for it.
Sorry, I will shut up, you obviously think this guy infallible despite
the outrageous statement in your first message.
"My regular Mercedes mechanic has told me that Mercedes
transmissions cannot be rebuilt, replaced only"
I would run, not walk, away from any mechanic saying that even if he had
helped Daimler design the first one ever made. Not that I know much
about old Mercs
89 560 SL (89,000)
76 300D (400,000)
78 300D (310,000)
No Replaced Transmissions in over 800,000 miles :-)
I have had those symptoms three times, once was an underfill, once was
choked screen and dirty fluid and one was vacuum related. 100,000 miles
later the transmission is still going strong. It is your money, your
call, I was just trying to help.
I posted previously that the transmission was just serviced,
including screens and that all vacuum checks were satisfactory. Of the
3 other MB shops i have called related to this, all have said (from
past experience) it needs replacement. Some have said if it had only
100-150k miles on it that tearing into it might be cheaper, but with
300k, it has had a good life.
Anytime a transmission has trouble immediately after a service, I look
for the one thing that may have caused it to start having trouble.
People are not infallible and can over/underfill easily, can leave off a
vacuum hose or split it when reattaching. If you do not want to go
through the check list that is fine, your call, but do not think that
just because someone tells you that it is broken that it is necessarily
Seeing as you are so resistant to the idea that it might be an easy fix,
I will no longer give any suggestions, it seems pointless. It might just
save you money, time, and teach you something about running an old car
by doing some simple tests on your own, and with a pair of latex gloves,
would not even have to damage your manicure.
It had the trouble before the service, which is why i had the service
done. It has no change in it since then. I told you several posts ago
that all tests and vacuum checks have been done to it.
I am not resistant to an easy fix, but no one that has seen the car
has found one! Everyone that has seen it or that i have told of the
trouble says there is no easy fix. They all agree. Why are you so
resistant to other mechanics opinions?
I work on machines all day long. It is what i do for a living. I am
in no way afraid to get dirty or to damage the manicure that i don't
have. But i am NOT a transmission or Mercedes specialist. Why do you
think most general mechanics do not do transmission work? Most general
mechanics are lost on MB as well. Both usually require a specialty
shop. I work what i can and i look for someone who can work on what i
cannot. With three other cars already in the shop, i am NOT looking to
throw money away. It has to make the rounds for these others so i am
looking to save where i can all the time.
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