Amsoil transmission fluid?




I put some miles after my ATF change and am still waiting for longer trip, to get transmission to 80C for final drip check. With lift this will make like 3 minutes job. Than I will put all the covers back.




I put some miles after my ATF change and am still waiting for longer trip, to get transmission to 80C for final drip check. With lift this will make like 3 minutes job. Than I will put all the covers back.
Do you drive your car w/o the splash covers? I guess it does not rain that much in the Las Vegas area,
. Seen an alternator damaged on an ML350 because the owner drove w/o the covers at some speed over water, and the splash from below short-circuit something. The AC compressor is also exposed, but no electricals as exposed.Do you drive your car w/o the splash covers? I guess it does not rain that much in the Las Vegas area,
. Seen an alternator damaged on an ML350 because the owner drove w/o the covers at some speed over water, and the splash from below short-circuit something. The AC compressor is also exposed, but no electricals as exposed.5L out, 7L in. and circulated the excess drained pretty clean.
Now if you're ever in San Jose I will do your transmission service for $100 with the good stuff if you bring it with you
I know it's a pain but I could do it every oil change if I really had to, it's not too complicated and theres too much fluff concerning small minute details that prevent people from hurting themselves on it that make the job sound more difficult than it really is.




Do you drive your car w/o the splash covers? I guess it does not rain that much in the Las Vegas area,
. Seen an alternator damaged on an ML350 because the owner drove w/o the covers at some speed over water, and the splash from below short-circuit something. The AC compressor is also exposed, but no electricals as exposed.Being able to pick it up from local warehouse, I bought it for less than $2000 about 6 years ago. At the time I also had convertible, so using the lift I could park sedan and convertible in single space under 10' ceiling.
I removed belly covers on my E last November, when taking the car to dealer for AEM. Mechanics tend to break the threads on the fastening screws, so I did not want that and I also check the job after.
The mechanic never removed shipping labels from my DPF, what is potential fire hazard, so good thing I check. So now, when I finally got transmission service done, I can put them back.
Last edited by kajtek1; Jun 1, 2023 at 07:31 PM.




Last time my car was serviced at the Mercedes-Benz dealership, the "factory trained specialists" lost the whole plastic engine cover...

They could never find it and had to order a replacement.
"be sure you give us a 10 on our follow up surveys"
I put some miles after my ATF change and am still waiting for longer trip, to get transmission to 80C for final drip check. With lift this will make like 3 minutes job. Than I will put all the covers back.




Being retired has its advantage that you don't need to rush things.
I bought ATF 2 years ago and that what it took me to get ready for the job.




We're in the DC 'burbs for a few more years, then the plan is to head back home to NC. Already mentally planning out that next house wherever it may be. I do know I want less sqFt and more land this time, so I can have a detached garage in the back. Probably going to be out in the country next time, but not too far out. Would like to have 5 acres or so. If that dream ever happens, my detached garage will definitely have a lift like that!
Mine is going in on Tuesday to have the Amsoil put in, along with new flex-discs and center bearing, oil change, and crank case ventilator that we've known for a while is going bad (have a little bit of oil getting into the intake). I must admit, I am excited to see what the Amsoil does to the transmission. Will be a complete flush, the cooler, torque converter, lines, everything will be replaced with the new Amsoil ATF. If it turns out anything like the only other time I have used after-market transfluid, I should be very happy. All I know is that Mobile1 full synth ATF I put in my wife's little 2006 Mazda 3 GT sedan shortly after we bought it brand new back then, made a world of difference in that car. Granted, we're talking about a Ford gear box compared to a Mercedes, but still. What I hope to see is some reduction in that lumpiness feeling sometimes in 4th gear that many of us have experienced, which I am thinking Chassis is right - it's the clutch plate. Hopefully the new fluid's viscosity will have a positive influence.
My car, even though now 9 years old, only has 71k miles on it. Long since paid for. So when something comes up that costs a few thousand, be it maintenance or repair, I am ok with it because the alternative is to replace the car. I don't necessarily like the idea of fixing a $5k issue with a $65k answer when it only has 71k miles, lives in the garage, and is not subjected to any level of abuse, and hasn't been since I bought it with just 21k miles in 2017. I would like to have a GLC as well, but not at the expense of this ole' w212 beauty!
The Best of Mercedes & AMG








GLE is good for loading stuff going to my cabin and for trailers towing, but sedan can do the trip without refueling and being easier with beating the traffic, save us driving time as well.
Talking about ATF, I keep wondering what are the chances I did its 1st service at 150k miles? When the car come with good service record at the dealer, I could not find transmission service.
Anyone has pictures of old ATF and magnets? My fluid was basically black and magnets had nice puddles of steel shaving on them.
Last edited by kajtek1; Jun 2, 2023 at 02:45 PM.
Anyone has pictures of old ATF and magnets? My fluid was basically black and magnets had nice puddles of steel shaving on them.




I also had a crack in the rear flex-coupling on the drive shaft, and the center bearing was worn but not worn out. Replaced it anyway.
Also had the crank case ventilator valve replaced, which I suspect plays a roll in the smoothness factor. I will say that I was still getting that burning oil smell at times when pulling back into my garage after a drive. I knew there was a slight amount of oil getting into the intake from the bad ventilator valve. That is now gone too.
Painful ticket at $2,200, but worth it in my situation of only having 72k miles on it, and it is well cared for and loved more every time I drive it. Looking forward to a road trip in a couple of weeks down I-81 from DC into Greensboro NC in it for my son's first trip to "nationals" for track. Kid is a freshman and faster than greased lightening! Going to enjoy that cruise for sure. If you're familiar with I-81, then you know how beautiful the drive is along the foothills of the Appalachian / Shenandoah mountains.
Strictly my opinion - I would not be afraid of the flush technique, nor would I be afraid of the Amsoil ATF for the 7g. Totally understand anyone who doesn't want to venture away from the MB fluid though. But I would give the flush technique some consideration.
Reason why I changed to Amsoil is because the "hiccup" seems to be across all different types of models with the 7g box. Chassis had it on his GLE, we've seen it here several times as well. The only common element to all of the stories is the fluid itself and the change technique. If just a couple complained, then maybe you could argue that one had a bad part elsewhere, or driving technique different from the other, etc. But so many have made comments about that lumpy feeling, and seems to be prevalent the most in that 3 - 4 gear, that I decided to see if it was the fluid itself. Mine appears to be the case, BUT time will tell if I am correct or not.
The pan only technique just seems like a game of diminished returns. You buy the car new with the fluid at 100%, and yet the best you can do is get it to around 50% after 60k miles? If 60k means you went from 100% to 0% (in theory) on ATF health, it just seems like the 50% at 60k would wear out far sooner than another 60k miles of service. At least wear down the comfort factor of the operations of the transmission. Just doesn't make sense to me... Tin foil hat theory - feels like they'd prefer it to fail at some point so you'll buy a new MB from them.
Last edited by nc211; Jun 6, 2023 at 05:43 PM.




Three things I’ve noticed today that I really enjoy.
When putting it in gear, it doesn’t lurch anymore at all. Just gently goes into gear and waits for me to press the gas pedal.
On a cold start off in the morning, I would get a pop into 4th as I gently rolled down my street. That is totally gone now too.
And noticed this afternoon while coming home from the office at 70mph, when taking foot off the gas and/or disengaging the cruise control, you can’t feel it at all. No sense of release of the engine power, it just glides effortlessly like it was in neutral. Love that!
the whole car just seems much happier now, less effort and seems even more smooth and quiet than before. Not giving 100% credit to Amsoil for that, as I am willing to bet the crankcase ventilator, rear flex coupling and new center bearing are contributing as well, but the transmission and application of engine power is very much improved, best it has ever been since I bought the car 6 years ago at around 21-22k miles.
I’ll give it a year and see how it holds up. If it’s the same and Amsoil comes out with a formula for the new 9g box, I will be hard pressed not to do the same for our 2020 GLS too.
It's a 10.7L capacity, you will end up draining 5L. Again Mercedes does not drain the TC on these unless you strongarm them into doing it.
MB Filter/Pan kit
Filter Kit
The 5L jug from the dealer is $105. Online vendors like AutohausAZ have it for $73. Often dealers will take 25% off the top just for you stopping by, so I actually do recommend visiting the dealer for these items for convenience and to get your name on the books for future business. Vaico and Febi make their own but they literally cost more so i think its an aftermarket buying it from the actual source on these, but they're betting on MB running out of their supply in order to sell theirs at a profit. You see this a lot with aftermarket radiators/water pumps/sensors for stupid applications that often cost more than the OE. AC Delco is notorious for this. It's why their quality is trusted lol.
236.17 Genuine MB ATF
Even if someone is doing it for you, when the time comes I can walk you over the hardware procedure, cuz it invoves a bunch of small parts swapping in addition to the drain and fill to make it work. It's way more complicated but about the same timeframe. I don't actually think anybody has done the service on these and told anybody about it.
GLS are the ultimate SUV, very nice car. horrid on gas but you only make memories once




I am today 56. I been 1/2 retired since 2018 and slowly every year I retire more
and I am now like 80% retired.I know I do not want to retire when I am past 60, because at the rate I abused myself since 15 to 45 years old, I am more worn out than most.... Ha ha ha.
Come Covid in 2019 and my desire to be healthier : I reduced my sugar level and loose 8KG , was 75Kg and best weight would be 64KG, I managed to be at 67Kg.
Sugar level down, and blood works numbers better.
Intermittent fasting + some work out.
Today I am at 70KG. Travelling made me fatter....LOL.
My car was the best exercise work-out machine. I get sweaty joy. I can't do any exercise for the sake of only producing sweat, if I gain no personal pleasure.
People go to the gym for work out , I go under my car with with my Quick Jack

I learn more of my car each day I use it to make "sweat".
On the brain activity side , the car also forced me to read and learn..... I truly enjoy it reading the wiring diagram and scoping this and that.
My other businesses are still running, its just I do not run it daily anymore. Someone is doing the daily for me.
So, my itchy hands can always find car related work.,,, its a "good" investment this W212.
and I am now like 80% retired.I know I do not want to retire when I am past 60, because at the rate I abused myself since 15 to 45 years old, I am more worn out than most.... Ha ha ha.
Come Covid in 2019 and my desire to be healthier : I reduced my sugar level and loose 8KG , was 75Kg and best weight would be 64KG, I managed to be at 67Kg.
Sugar level down, and blood works numbers better.
Intermittent fasting + some work out.
Today I am at 70KG. Travelling made me fatter....LOL.
My car was the best exercise work-out machine. I get sweaty joy. I can't do any exercise for the sake of only producing sweat, if I gain no personal pleasure.
People go to the gym for work out , I go under my car with with my Quick Jack

I learn more of my car each day I use it to make "sweat".
On the brain activity side , the car also forced me to read and learn..... I truly enjoy it reading the wiring diagram and scoping this and that.
My other businesses are still running, its just I do not run it daily anymore. Someone is doing the daily for me.
So, my itchy hands can always find car related work.,,, its a "good" investment this W212.




Bottom line, I have no issues with the transmission after converting over to 100% Amsoil via the power flush method. Probably driven it 3k miles since doing it.



Mine has 44k and the dealer told me it is to be done at 40k. The only documentation I can find online is a 2017 Mercedes Publications that shows 60k miles and some mentions of it being "lifetime" fluid which I wouldn't be comfortable leaving forever.




You’re talking about three different components here. The diff’s use gear oil, and the awd system is fixed with majority of power to the rear at all times. The rear diff gear oil can be changed easily drain/fill. The front however was not designed to be changed for whatever dumb reason from MB, as their is a drain plug but no fill plug, you have to actually remove the front passenger side drive shaft to refill it. IF you ever decide to do that, go ahead and replace the driveshaft seals while you’re at it, because they will leak eventually.
Rest is all inside the transmission housing. Transfer case is baked into the transmission itself, meaning trans fluid change in general. Dumbest damn design I’ve ever seen before, other than the front differential…
Last edited by nc211; Dec 12, 2023 at 04:28 PM.



You’re talking about three different components here. The diff’s use gear oil, and the awd system is fixed with majority of power to the rear at all times. The rear diff gear oil can be changed easily drain/fill. The front however was not designed to be changed for whatever dumb reason from MB, as their is a drain plug but no fill plug, you have to actually remove the front passenger side drive shaft to refill it. IF you ever decide to do that, go ahead and replace the driveshaft seals while you’re at it, because they will leak eventually.
Rest is all inside the transmission housing. Transfer case is baked into the transmission itself, meaning trans fluid change in general. Dumbest damn design I’ve ever seen before, other than the front differential…
Mine has 44k and the dealer told me it is to be done at 40k. The only documentation I can find online is a 2017 Mercedes Publications that shows 60k miles and some mentions of it being "lifetime" fluid which I wouldn't be comfortable leaving forever.
the transfer case is 30k on some models, 60k on others. However these cars don't actually have a transfer case that is filled/drained the same way IIRC, it's done through the axle seal. I haven't yanked out bad fluid. It's more of an AMG concern TBH.
the differential "doesn't have one" since it's an open diff, doesn't contaminate itself the way an LSD would
i've pulled perfectly good *looking* fluid at 150k+ before
Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674
I’m curious if it helped to make it even smoother.
Long ago I bought a Mazda 3GT sedan. Wasn’t long before I replaced the trans fluid with an approved Mobile1 fluid, and it made a tremendous difference in smoothness, sound and feel. Was just curious if anyone’s tried it on the benz.
I have used both Mobil 1 and Valvoline MaxLife ATF with excellent results in several of my Mercedes-Benz.
However, I am diligent about changing fluids on time.
I’m curious if it helped to make it even smoother.
Long ago I bought a Mazda 3GT sedan. Wasn’t long before I replaced the trans fluid with an approved Mobile1 fluid, and it made a tremendous difference in smoothness, sound and feel. Was just curious if anyone’s tried it on the benz.
I have used both Mobil 1 and Valvoline MaxLife ATF with excellent results in several of my Mercedes-Benz.
https://alphaeuropean.myamsoil.com/
I use their DCT, ATF, oil, gear oil, power steering, and brake fluid. G550, AMG GTS, E550, and S550 all have the entire suite. I also run a full service shop here.
However, I am diligent about changing fluids on time.
Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674




