Does anyone know a tread of how s220 owner change their trans.oil. I need to change mine soon the transmission is acting a little unusual

 

simple
jack car up
remove drain plug on tranny
once drained, replace plug with new washer, remove allen head bolts around the outside of the pan.
Drop the pan, replace the filter, clean pan with surgical precision, replace gasket if necessary
replace plan snugging bolts to about 8lb-ft in a star pattern
snap off tab on filler hole cover
remove filler hole cover
pour in 3 quarts
start car, check level at 20c using dipstick tool (engine on, in park)
adjust level
Once 20c level is good, let car warm up to 80c, check fluid level
If good, replace cap, install new locking tab.
if not, correct level, and then replace cap.

 

so it only need 3 quarts

 

Note he is saying start with 3 quarts for cold level, then warm up and recheck. You will probably need to add a little more (~1 qt) to reach the 80C level on the dipstick tool.

Oliver's advice is good.

However, I'd like to suggest a slightly different approach.

After draining the transmission, measure the quantity taken out. You can do this by calibrating an old milk container as follows: Put 1 qt. of water into the container and make a mark on the side. Repeat twice. Use this to determine how many qts you drain out. You can estimate the partial quart.

Put the exact amount back in. Now drive the car for about 30 min. It's very important to make sure the transmission is at full operating temperature when making the final level check.

Park in a level spot and with the car in park check the level with the dipstick tool. Adjust as needed with small amounts. You do not want to be overfilled. If so you must drain some fluid out.

There are only two transmission fluids approved for your car.

For the 722.6xx 5 speed transmission use:

Part No. A001 989 21 03 10 (this is what came in your car from the factory)

The fluid for the 722.9 7 speed transmission can also be used:

Part No. A001 989 45 03 13

The dipstick tool is:

Part No. 140 989 15 21 00 - Note the dipstick tool is not meant to remain in place as it is about 8" too long. It is for setting the level only.

These (and the drain plug seal, gasket and filter) are available from the dealer and online at 3rd party vendors like autohausaz, germanstar and others.

As mentioned be extremely clean when working with an open transmission. Check the pan for any grit. Just rub the film on the bottom of the pan between your fingers. A little grit is okay. Large particles and strands of fiber are an indication of excessive wear.

This process only removes about 1/2 the fluid in your transmission since it holds about 8 qts. Some people repeat this process to gradually reduce the amount of old fluid. Unfortunately you can't get very close to a full fluid flush without spending a ton of money and time by that method. The dealer or a good independent can exchange virtually all the fluid by machine. If using an independent make sure they use the correct fluid. They may also suggest not replacing the filter which is probably okay since it is only a SS mesh but you lose the chance to inspect the pan which is more important in my opinion.

 

Richard's method is a good one, but I didn't have an appropriate measuring container.

either way works.

 

A nice "how to" with pics...

http://www.benzworld.org/forums/w210...ion-fluid.html

 

Just FYI, if you decide to do this at MB Dealer, cost is $400 and independent places charge around $300, including filter, gasket, etc.

 

In S. Florida, I checked 2 different dealers within 50 miles of each other. One wanted $500 and the other $300. The services are not tranny flushes. They are just a pan drop with new filter and pan fluid replacement. When doing this, the pilot bushing (electrical connector) should be replaced if it hasn't already been done so.

 

I did my own oil and filter change on my s500 (2005) the dealer wanted $325. I did mines for a total cost of approximately $140 everything included. I have the 7 speed that does not have a dipstick tube to refill. you can drain the oil but getting it back in is the problem.
This is how i did it
i bought a new trans drain plug to get the type and pitch of threads
had a tool/adapter made that could fit the pan but could have a hose hooked to the other end
bought a simple hand pump from Autozone ($5)
drained all the oil and collected every drop measure the amount in a container (Gallon bottles or larger etc will do)
Pour ALL the oil collected into containers. Using similar containers pour new oil into and put side by side on level surface.
Change filter etc. do not forget to collect oil from filter and pan. There will be a lot of oil in the pan because there is a tube in side the pan that will not allow all the oil to drain from the drain plug. I believe its what MB uses for the oil level. Screw in the tool/adapter into the drain plug after re-installing everything. Pump the oil back in through the drain hole. put the exact amount you took out plus a little extra for what u did not collect.
remove tool, put finger to stopp running back out, QUICKLY re-install drain plug. there is also a drain plug on the torque converter.

 

My understanding is that you can never get all the transmission fluid out of there due to endless crevices in an automatic transmission. I suppose one option is to keep pouring in fresh fluid from the top hoping it flushes out the old stuff, but this too is an imperfect method.

So, what is a tranny flush Jud?

 

Trinsoca,

That is an interesting procedure you did. I could be wrong here, but I think you can fill it in from the top, there is no dipstick, but the seal is removed to pour in fresh tranny fluid and then seal is replaced.

 

i tried to post the pictures but i am new to this and it did not post the pictures

 

i have heard of something along that line but not sure if was a 5 or 7 speed or another model. the only thing i saw was a black plastic thing looking like a breather cap for the trans and not wanting to damage anything i did it the other way.

 

The only reason it is capped is because MB considered it a sealed system with no tranny fluid change ever needed. MB has now changed this and are saying to change it every 30K miles.

 

Have a look...


http://www.benzworld.org/forums/w210...my-tranny.html

 

I would not recommend a flush, the "drop the pan and change the filter" method is better.

The flush changes more fluid, but also STIRS UP all the bits of metal and friction material at the bottom of the pan,.,this is exactly what you DONT want to happen.

Dropping the pan lets the mechanic wipe out all the bits of material at the bottom of the pan, instead of flushing where the particles are stirred up and can cause damage.

 

I agree, the flush method looks like the procedure Jiffy Lube guys use for coolant, engine oil, etc.

 

My car has 60k on it now and i was told that it was a sealed trans and maintenance was not needed until 100k. i for one do not like that system. every car i have had, i have always changed to trans fluid @ 2yrs or between 24k to 30k. the old oil was black.
There are 2 types of flush
1/ type hooks to the trans cooling lines, but everything falls into the pan and stays there unless u take out the pan and filter to clean after. Trans oil flows filter> pump> and then it is divided to various components like cooler, torque converter etc. That is why method #1 takes longer.
2/ best method is drop pan and hook machine to trans inlet that way it goes through the whole system.

Also NEVER run engine with out oil in the trans, it may surprise you how fast the clutches and bands will burn. I had a trans burn on me after running it for less than 15sec. So be careful with running the engine.

ps HELP
i am trying to post the picture of the tool but i am having trouble doing so.

 

Thank u guy from all your feedback I already started buying the goods....