justaguy

So how many quarts of transmission oil did they charge you for ? They used blue fluid ?!
It took me 2 years just to talk a dealer into doing the job the right way .
What a mess . If I knew that my transmission was sealed or that I couldn't check the fluid level myself I would have never purchased the car ...
No more Mercedes for me . Multiple repairs during and after warranty .Purchased a new 2014 avalon ...

global33

I have no problem with paying a good mechanic an appropriate fee for their time and skill provided they do the job properly. This thread was originally about certain techs not draining the torque converter per manufacturer's specs and thereby only replacing roughly half of the fluid. The gripe is with dealers charging upwards of $500 for a half-*** job and thinking the customer won't find out (or just being too lazy to read up on the latest service instructions).

global33

I was charged for eight liters. Blue fluid since it's a 7G "plus" transmission (mid 2010 change, see Glyn's thread in the stickies)

Trancebolt

My diesel, being the 2012 e350, uses the old tranny fluid still. So thats a note; Most dealers told me i dont need svc till 70k, but my booklet says 40. Finally found a competent mechanic at a dealership and he confirmed mine does not have updated fluid , and requires service as the book says. (not saying there is a large amount of good mb mechanics, took me 10 calls to find this guy,but my point was just that the job is worth paying to be done right.)


My old boss has a hybrid avalon, loaded. beautiful car, nice interior. gg. good hybrid. PErsonally, its about more to me than just being a smart buy. Intentionally would rather a cpo e350 2012 than a new hybrid avalon fully loaded for free. his wife has a lexus suv, loaded.... land cruiser on air rides with pearl paint. Sorry

However i love teh adjustable shoulder/side bolsters on the seats being electric. genius there;

bigben320e

Hmm..interesting thread indeed. I had my transmission service done on my CLS 63 at the 39K interval, but I wonder did they drain all the fluid from the TC? Need to look at that receipt.

Question, (Glen or anyone) on a 09 CLS63 should the service be performed once or every 39K miles? Not clear on that.

Exhibit13

4 years or 40,000 miles - whichever comes first.

raysts

Just finished my 2012 W204 tranny service at the dealer today in Toronto, Canada. I asked them beforehand whether TC will be drained & they said yes.

From the invoice, it mentioned 8 liters of fluid used. The invoice did not have a separate line item for TC drain & I asked the SA right away & he confirmed TC was drained as it was part of the transmission service.

BTW, the price is $400 although their website say $524. Don't know why & I did not ask.

Am I safe here? Please help. Thanks

kincaid2517

I'm not sure if anyone is in central florida area but MB of Gainseville told me today that they do not drain the TC which i find to be very odd as this shouldnt be a problem after this long of complaining about this half assed service. Anyone around this way know of a dealership that does or indy shop thats trustworthy for this service?
thanks

kb24forlife24

Just to add to this thread, I changed the fluid on my 2005 CLK500 a couple of months ago and it does not have a drain plug on the TC. I rotated it many times and there was no drain plug. I guess mine falls in the early batch of 722.9 transmissions.

nelson g

Item # 20 in the screen shot (in the attached PDF) is the drain plug for the converter. This screen shot is from the EPC-net Online and is for my 2011 C300 4matic. If you go to the EPC-net Online you can input your vin ID# and see what transmission you have and if it has a drain plug. There is even a part number that you could check with your local MB dealer and see what they say.

Nelson

bigg dogg

Can anyone give me advice on a transmission kit for a 2008 c350 4matic, i see some on ebay genuine and aftermarket.

Nicholi2007

I asked the SA about the TC and he said mine did not have a plug. He claimed the older versions don't have one.

I've attached a copy of my invoice so others can see.

if you skip down, you'll see it mentions the torque converter.

Looks to be in order.

dave2001auto

According to the invoice, the TC plug was invoiced. ...1117. Unless you standing there watching, it largely on faith. You can visually check if new TC plug, tranny pan seal and bolts were installed. As for fluid level, On the 5g there is a red cap, that cover the tube for a temporary dipstick. Be sure to get a new red cap if removed.

As for 39 or 40 thousand miles that nothing to sweat about (regular 7g tranny)
Check the manual for the 7g Plus.

Colin G

Just had my 2008 C230 done a couple months back.

I asked them to do front and rear and they only did the front so I had to come back.

Front - used only 6 L of fluid. Is that correct? 6L for just the transmission? Looks like no filter change and no screw plug replacement, just the screw. I wanted the fluid in the front differential (torque converter?) for the 4 matic changed but they said it is not needed and they have never needed to do one. I call BS on that one.

So is this what Glyn means in a quote a few posts above that all the fluid is contaminated now since they did not change the front differential fluid or am I misreading something?

Rear was flushed and filled with 2 L of Hypoid.

Colin G

Does anyone have a link to the actual Mercedes service bulletin regarding the 722.9 transmission? I want to make sure my dealer did things correctly so I want to print off the bulletin and read it. Also could be something to show them if in fact things were done incorrectly. I am sure my new fluid is contaminated with the old fluid that was left in there. I need to find that service bulletin because I want to speak to the service manager about it tomorrow at the dealership.

I have been searching the interwebz all morning for it and an't find it.

Nicholi2007

Since I'm not familiar with the part numbers or what's factual, this is helpful and appreciated. I approach most service advisors with suspicion. I know they like to position themselves as experts but I find they're not always correct.

I presume, to inspect, I just need to remove the bottom cover.

I learned the trans was serviced at 38k and my mileage is 86,106K. Hopefully this does not come back to haunt me.

Probably going to a lease the next car. I'm currently financing at 1.99% APR. Might go to carmax to get out of it and to avoid negative equity.

dave2001auto

Use the www to search the part number. Filter is not visible. Need the pan removed to see. If they replaced the 6 pan bolts, the filter was likely replaced. If there is a new tc plug then the tc was likely drained and refilled.

As for the differential and transfer case, those are other service orders and may have different service intervals. My differential fluids have never been changed on all my cars--usual a thick gear oil.

On one car there is a transfer case, I don't think it has been serviced at 185,000 miles, but the atf was changed every 40,000 miles.

Don't worry about an extra 10,000 mile on the atf service interval. Nothing you can do to reverse time and likely no problem anyways unless you're racing or heavy towing. The smell test is the best easy way to tell if the aft is bad. Color not as good for new friction pads leaches color material.

I can not find the wiki that is on one of the benz sites with detailed diy information. Any knows that site?

Colin G

https://w220.ee/WIS_27.00_Transmissi...n_M-B_Bulletin

alwayslookaroun

Hi,

I'm also being told my car doesn't have a TC drain plug, so they can't change the fluid. Not sure if that's accurate, would love to know for sure.
Mine is a 2007 E350 AWD wagon, VIN: WDBUH87XX7X216174

Many thanks.

pussgalore

Do you need to replace the bolts and the tube too? I only purchased the filter and the gasket...

dave2001auto

pussgalore

I see. Another reason why I shouldn't trust a mechanic who said I didn't have to replace the bolts...
I asked my local MB for bolts, a plug seal, a pipe, and magnets. The plug seal and magnets might not be necessary.

dave2001auto

xsever

I've seen a video online of transmission fluid change on a 722.9 by an Australian professional mechanic, Scott Elliot, who bought regular bolts that don't need to be replaced everytime the pan is removed. They weren't aluminum but steel I believe.

Here's the video:

dave2001auto