How many liters for a Auto box oil change?

[eurico]

Yes, 1998K, that's right. It will help your sleep quality imensely!

c240yaz: I know what you mean but I ran it on idle, never touched the accelerator pedal and the only load was the braked car. As soon as no oil came out, I switched it off. Whole process took around 2 minutes.

 

[1998K]

thanks eurico!

 

[television]

Just to sum up on this, the drain plug was deleted towards the end of 99, the only way to tell is to look through the hole in the bell housing, and look for the plug.

The max that you should put in is 6.5 liters (+0.5) on a fluid change on the 772.6





Though these were once sealed for life, they are not any longer 60k miles is now the accepted change distance. they used to be done under Assiyst at 40k but not any longer.

It is possible to pump a few liters through the oil cooler pipes to change the sealed converters.

Most people report smoother changes with a new filter and fluid


for all other boxes see my link here

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

 

[eurico]

Malcolm: so right you are! I am sorting out all the info to post but to shorten things up: I had my autobox reconditioned without even removing it!!!! Incredible improvment!

 

[DieselE]

Not covered under the standard schedule.

I think that has changed now. My car was serviced two weeks ago (under Service Plus admittedly) and the automatic transmission fluid was changed (7.3 litres of fluid). I was told that MB now change the fluid at 37,000 mile intervals.

 

[DieselE]

Just to sum up on this, the drain plug was deleted towards the end of 99, the only way to tell is to look through the hole in the bell housing, and look for the plug.

The max that you should put in is 6.5 liters (+0.5) on a fluid change on the 772.6





Though these were once sealed for life, they are not any longer 60k miles is now the accepted change distance. they used to be done under Assiyst at 40k but not any longer.

It is possible to pump a few liters through the oil cooler pipes to change the sealed converters.

Most people report smoother changes with a new filter and fluid


for all other boxes see my link here

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

If you see my other post, I think it's 60,000 km not miles.

 

[television]

If you see my other post, I think it's 60,000 km not miles.

Yes you are correct in that it was 40k miles or 60k km, with all the arguing that went on with many dealers not accepting this many people have settled on 60k miles.


Thank you.


If one of the mods will lock the level information and fluids used in all of the different boxes I will re do the link

 

[1998K]

I was also scared by the coolant/ATF mix demon. One MB dealer even told me to buy a new radiator that has this problem fixed. However, my car uses up a different system where the ATF is cooled in the same place as the engine oil. You can check if your car is imune or not to the above demon by chasing the transmission cooling hoses and checking if they end up in the engine radiator or the oil cooler beside the oil filter housing. I was lucky and can sleep safely at night

I've done a look yesterday unfortunately I was not able to locate the cooling pipes, but I saw two plastic pipes going to a small radiator (about 20 x 20 cm) in front of the main engine radiator, but separated.

Is that the auto gearbox cooling radiator? If so it's not the better solution you described, isnt'it?

Thanks


PS: furthermore, looking around I've noted that on the high pressure pump (that black one in front of the common rail) there is an oily and black dust smelling of diesel!! Mainly below this component! I don't know if it's from the pump or the plastic pipes going into! Should I worry? Or is acceptable a small amount of oily dust on a diesel engine!?
It's directly over the service belt!

 

[eurico]

The little radiator is a fuel cooler that, if I'm not mistaken, is for the return line.
You should look for two hydraulic hoses that come together from around the bellhousing and feel them with your hands to try and see if they go into the oil cooler. They should connect to rigid metal pipes that go parallel to each other and into the oil cooler. Otherwise, look at the water radiator (big one in front of engine) and try to see if there are any hidraulic fittings connected or just plain clamped rubber hoses for water.

As for the oil mist, try renewing the O'ring. For that you must press the white plastic stop (U shaped) all the way in - do not remove it. This spreads the little side tabs located in the outer black plastic ring. Then you can remove the plastic pipe and service it.

 

[1998K]

thanks again eurico, I'll better check but I've already dismounted the upper plastic cover without locate anything, probably I need more time to better check, in any case looking to the front radiator is a good alternative!

thanks

As far as the oil mist/pipes I know what do you mean looking here (sorry need registration)
http://forums.mercedesclub.org.uk/showthread.php?t=31203
and here
http://forums.mercedesclub.org.uk/showthread.php?t=31202

could you confirm that all pipes into the CDI high pressure pipe utilize the
same loking system (U shaped clip)

you are so nice!

Marco

 

[eurico]

Marco

Yes the pipes I was talking about are like the ones in the post you mention. I little advice: before fidlling with these, wash the area with a suitable detergent, water and dry everything. Remember that these lines carry filtered fuel. You don't want any dirt going in as it will end up in the high pressure pump and that's a no, no! if you are replacing the O'rings only, buy ones made out of Viton. They can handle fuel as opposed to rubber ones. If not, you can buy new plastic tubes at the dealer. I broke the fitting when I replaced the fuel filter and went to the dealer: the long pipe from filter to pump cost me only 11 euro plus VAT.

 

[1998K]

Marco

Yes the pipes I was talking about are like the ones in the post you mention. I little advice: before fidlling with these, wash the area with a suitable detergent, water and dry everything. Remember that these lines carry filtered fuel. You don't want any dirt going in as it will end up in the high pressure pump and that's a no, no! if you are replacing the O'rings only, buy ones made out of Viton. They can handle fuel as opposed to rubber ones. If not, you can buy new plastic tubes at the dealer. I broke the fitting when I replaced the fuel filter and went to the dealer: the long pipe from filter to pump cost me only 11 euro plus VAT.

first at all: I broke the same fitting when I replaced my fuel filter Actually I've made a patching with a plastic clip

transmission cooler:
So yesterday I've done another look, I was able to locate the mentioned 2 pipes coming in parallel, I've noted, as you said, that they go straight in vertical but I'm not able to see further more. So it seems that this is OK isnt'it?

Furthermore, I'm wondering what are the other small radiator in front of the main radiator/fan: is it really a small radiator for the fuel cooling, or the AC system? There are also a black bended pipes small diameter in front of the radiator going transversally the car, I belive from the steering pump system.

common rail pump
Regarding the high pressure pump in front of common rail, I've done a look the dirt is few and in a recess below, difficult to locate the cause, the various pipes seems dry,

but in the rear there are some clear pipes that are plugged directly without the U shaped clip already discussed


Hi eurico, please have a great week end in Portugal