overfilled or underfilled?

[thebiglad]

@thebiglad sorry I lost you there. Who does not measure with the vehicle in gear

BlackC55 in his treatise on changing oil in a 722 gearbox as per link above.

 

[choo]

going back to your problem is you idle speed at the correct level. a slightly raised idle speed will give those symptoms

yup it is idling correctly , I think the issue is from overfilling , FROTH is good in some drinks but I am not going to drink trans fluid
very possible that it is getting frothed up , gears are changing correctly , just the jump in and odd slip .

 

[choo]

I do believe checking after out of gear needs to be done before 45 seconds otherwise the fluid drops back to the pan and a incorrect reading happens , checking in gear while at idle is not a real good idea nor is reving it in gear . how stupid is that ?

 

[choo]

going back to your problem is you idle speed at the correct level. a slightly raised idle speed will give those symptoms

I thought I answered to you before ? sorry , no the idle is in the position it should be in . I think it is overfilled , but with out a good dip stick can not get a reading , I just got to wait to get a decent one and take the old girl for a drive ,

 

[classiccarzone]

and if you notice, he doesn't measure the level with the vehicle in gear, it's in Neutral or Park.

BlackC55 in his treatise on changing oil in a 722 gearbox as per link above.

I am with you now. No he does not, neither did I until I came across the instruction to do otherwise.
It is worth considering though that there is a drop of approx 12.5mm in the dipstick when it is checked while the car is in D or R.

I find it hard to figure out the logic of putting the car through the gears to get all the fluid into the Torque Converter etc and then waiting two minutes for most of it to drop out again and into the pan.

Of course it is possible, though not probable that Mercedes created a convoluted method of measuring it that gives the ideal result.

I saw elsewhere that some poster said it would be suicide to put the car in reverse while checking the level. Whatever about not taking proper precautions when placing it in Reverse suicide will not be the result,as you will be standing at the front of the car.

Again, Mercedes never intended this operation to be carried out by a DIY'er, not to mind an incompetent one, thus ensuring that it was done properly and safely.

 

[choo]

I do not understand where the two minutes comes in , as I have read and seen that it is done WITHIN 45 seconds , the problem I have that the wonderful dip stick does not have the stopper on it. that is where mine fails , but here one more time I will go thought the steps to read that I do .
1 warm the car up by driving it (doesn't matter if going around in circles as long as it is DRIVING to work the box into temp)
2 pull up on LEVEL ground place in park with HAND BRAKE ON (and motor still running)
3 remove the clip that covers the transmission dip stick ( I don't have my lock in the "pushed all the way in")
4 jump back into the car and with my dainty hoof(foot) on the brake place gently into reverse , then to neutral then drive back to neutral , reverse then to either neutral or park (does not matter)
I then do a mad dash with the stupid dipping stick and check the level once and once only (as if I do not get it right then I got to do the whole bloody thing again)
now as it goes I did not know that it needed the diamond shape up the top of it to stop it going down and bending , my later model box in the 07 jeep which has the exact same box EXCEPT the tube for it , it is different , so the longer type reader is needed ,
what I believe is different in benz is the W210 , is different to the W211 so on so on bla bla bla , I am now going to run down the road with no pants on waving my dip stick in the air chanting "GO BLENDER GO BLENDER"

 

[MangoMan]

hi to all , just making a little question about the wonderful E270 cdi I own that runs very well , but just recent had a issue with gear change , I placed it on a scan tool and results came back with nothing , all works well , but sometimes when I go from park to drive or reverse , it "jerks" into gear now I tried to check the level of fluid , but no thanks to the wonders of e bay ,, don't seem to be able to get a decent dip stick to read it , my first one has a plastic end which seems to read overfilled , the second is a metal one which the dam thing does not read at all ? like what the blazing magic does one do to get the correct dip stick ? pay some dollar eye signed dealer ? the metal one does not seem to go in all the way , but yet it will on my 07 jeep (yes it runs the exact same box ) what on earth went wrong as I remember when you bought a tool it worked . ...............where can one buy a dip stick that will work on my model without waiting ten years for the postman pat to find his glasses and deliver it for as it goes it seems Australia once full of crims , seems to be still in that factor can anyone help on this issue ?

Hi.

This is the one I bought - works fine!

Mercedes Transmission Gearbox Dipstick W245 B class W140 W220 S W414 W208 W209 | eBay

 

[choo]

Hi.

This is the one I bought - works fine!

Mercedes Transmission Gearbox Dipstick W245 B class W140 W220 S W414 W208 W209 | eBay

yes the one I have is exactly like that except for the diamond tip and when I place it in it bends because it does not have the diamond tip part, I do believe the W210 type, but the longer one I have is the W211 , I have both . now I got to buy another because of the stupid stopper . in the words of Dr Smith on lost in space " OH THE PAIN THE PAIN"

 

[Mercfreaks]

That looks ok and it is cheap.
This brings up the whole debate of how you should take the level.
It is generally accepted that you take it at 80c move the lever through the gears and select either park or neutral with the car running.

From my research this is not correct. You apply the hand brake, chock the wheels if you wish and put the car into reverse with the car running. (Putting it in drive will give you the same reading but for obvious reasons you should not do that) then take the measurement.

I have found that there is a difference of approx 12.5mm (from eye judgement) in the difference between Park and Reverse.

Just came across this old thread. It is my understanding that the 722.6 TCM cannot sense transmission temperature in P or N. Will only sense trans temp in D or R. So this is only relevant if you are measuring fluid temp using OBD scanner reading TCM data. I believe this has led to the confusion.

If you're not using OBD scanner, you measure fluid level in N or P at idle, maybe using IR thermometer aimed at pan. Also, using a fluid temperature chart allows you to measure fluid at any temperature, although the experts recommend measuring fluid at 80 degrees C - hence the marking on MB dipstick.