What is my gearbox type? and what happen to my gearbox?

[pogilau]

Hi
i have a 1994 W202 C200 auto. recently i found my gearbox misbehaving. it shifts alright or i can say perfect when the car is warmed up, but when it is cold, the gears do not shift smoothly. i saw a few threads saying that after changing the gearbox oil and filter can solve the problem. i am just wondering is it really the case? and if so, what is my gearbox type? 722.xx?? and what type of oil do i need? the mercedes one?

thanks so much for anyone who can help!

 

[television]

Your car will nort have the 722,6 box it will be the 722.422


the oil is in this link,,and yes it does make a difference

http://forums.mercedesclub.org.uk/showthread.php?t=25558

 

[hardtop]

i found the first few shifts when cold seemed to hold for a long time then it was ok when warm but after oil+filter its good from cold .

 

[pogilau]

Your car will nort have the 722,6 box it will be the 722.422


the oil is in this link,,and yes it does make a difference

http://forums.mercedesclub.org.uk/showthread.php?t=25558

thanks for your reply.
but i couldnt find 722.422 in the link above, or is it the same as the section of 772.400/403/411/414/420/421/423/424/425/426/427/428/431/434/441/443 ? is there a mercedes oil for this auto transmission?
thanks

 

[pogilau]

i found the first few shifts when cold seemed to hold for a long time then it was ok when warm but after oil+filter its good from cold .

great! how much does it cost you? do i have to go to mercedes specialist or the dealer to do it? can i just buy the oil and filter and bring it to the local garage to do the work? thanks

 

[television]

thanks for your reply.
but i couldnt find 722.422 in the link above, or is it the same as the section of 772.400/403/411/414/420/421/423/424/425/426/427/428/431/434/441/443 ? is there a mercedes oil for this auto transmission?
thanks

I have no idea why it is not there but as all of the 772,42 number are on that list it will be the 5.5 liters for a change

 

[pogilau]

I have no idea why it is not there but as all of the 772,42 number are on that list it will be the 5.5 liters for a change

thanks so much.

do you know where can i buy the filter and oil for the change? is there a mercedes ATF for it? thanks

 

[television]

There are 3 types of fluid in my link for your box and the filter can only come from MB

The Shell and BP fluids could well come from a filling station with the same name

 

[dragon]

What about mine? A 2005 auto with +/- if move sideway. Is it tiptronic or not?

 

[stumo]

What about mine? A 2005 auto with +/- if move sideway. Is it tiptronic or not?

No, I think yours is like mine (722.6), and I'm afraid it isn't tiptronic...
The +/- just tells it what the maximum gear it should use is, so it doesn't actually force it to chage gear like a true tiptronic. In saying that, it actually will "force" it when downshifting, but only because maximum (ie. current) gear has just decreased, but cetainly not upshifting. Maybe that is why there is the common misconception that they are tiptronic.

 

[wireman]

You will also need the gasket for the transmission sump pan, from MB.

 

[dragon]

No, I think yours is like mine (722.6), and I'm afraid it isn't tiptronic...
The +/- just tells it what the maximum gear it should use is, so it doesn't actually force it to chage gear like a true tiptronic. In saying that, it actually will "force" it when downshifting, but only because maximum (ie. current) gear has just decreased, but cetainly not upshifting. Maybe that is why there is the common misconception that they are tiptronic.

But that not what MB at Croydon told me. MB inside the M25 are all owned by Merc. I asked him about Tiptronic and he said it similar to the 1992 190E auto with a switch for winter/summer driving and numbering of gears of 1,2 and 3.

 

[television]

On the box where you knock the gear stick to the laft or right and no 123 that is tiptronic

 

[dragon]

Correct the W211 has no 123, just knock left and right. I knocked it by accident and got into low gear and the engine revved then only did I realised it got tiptronic. Someone argued with me it not but funny is not listed in the spec.

423 5 speed automatic transmission / nag (с 01.03.1994)

What does nag mean?

Didn't understand this too.
806 Change of year of model, last figure shows new model year

 

[stumo]

On the box where you knock the gear stick to the laft or right and no 123 that is tiptronic

No this doesn't mean it IS tiptronic, it can also be what is called tipshift. Also, true Tiptronic usually has a seperate dog-leg gate for changing up and down, so that you cannot go back into "D" at any point in the up/down shifting.

Tiptronic actually forces gear changes (within quite extreme limits) just like a manual or semi-automatic.

Tipshift on the other hand is just a means of selecting 1,2,3,4 like a normal auto box, except you do it electronically by tiping the lever. The box will then select any geers below what you have set it to as it sees fit.

Dragon, I suggest you check your owners manual - it says basically the same as above in there.

And then if you still really want to prove it either way, get in your car and upshift very quickly (ie. short-shift) through the gears to 4th and count the actual gear changes that you feel. Tipshift will basically ignore your requests (it will say 4th on the display but it won't actually be in 4th gear). Whereas Tiptronic will be in 4th. I have driven both (true tiptronic in a BMW), and unfortunately my MB is definately tipshift not tiptronic.

But they often are mistakenly advertised as tiptronic just becasue they have the tip mechanism. I'm quite sure this wasn't done by accident - rather a cunning marketing strategy.

Oh and NAG just means "New Automatic Gearbox", I think NAG1 is 722.6 and NAG2 is 722.9

 

[television]

There are many versions of tiptronic and the name tiptronic is a patent name held by Porsche.

The MB cars with this function do not have a special gate for this, the shifting is done by nudging the gear shift to the left or right, as in my car there is no gate

 

[dragon]

If that is so then the 1992 190E I got, got tiptronic, it got a gate to shift to 1,2 and 3.

 

[television]

If that is so then the 1992 190E I got, got tiptronic, it got a gate to shift to 1,2 and 3.

No this is not Tiptronic on any MB with a gate, also has to be a 722.6 box

 

[dragon]

Only if it called Touchshift is correct.

http://en.wikipedia.org/wiki/Tiptronic

 

[dragon]

Didn't know Musso is also Merc in South Korea.

http://en.wikipedia.org/wiki/Mercedes-Benz