Mercedes Benz E320 CDI 722.6 Transmission Flush Project

Procedure to flush out a MB 722.6 (NAG1) transmission with replacement of the transmission filter and cleaning of the pan. Clean the system the official MB way without having to use a transmission flush machine.

[@konasteph]

After watching the other contributions on the same subject, I would give this one my vote for best transmission flush procedure for the 722.6. Presentation: best also.

[@banzay1]

"Beth, can you turn the car on, please?" that's how a gentleman treats his wife! You have my respect, Sir!

[@iShapeshifter]

Thanks for the vid. Totally made the job easier and uneventful. Tranny shifts smoothly and cured some shuddering issues I was having going uphill with light throttle . 250K miles on the car and it runs really well. 2003 E500. I didn't even bother asking the stealership how much they charge, local mechanic wanted $800 . I did it all for $207 including a stinkin dipstick that costs $20. I only got 3.4L the first drain. I put 4L in the refill and the level is at the top of the range on the golden dipstick. I also did the flush according to your vid. (3L out, 3L in, repeat). The fluid was incredibly gross as I don't think it had been changed in about 100K miles. Thaks for this effort, much appreciated!

[@andrewrudge7791]

Nice video. Unfortunately i picked the wrong oil line and the first load ended up on the floor instead of the bucket, but there you go. When i refilled with clean fluid i noted that the gearbox pump will pump down to 10mm on the dipstick, and 1L will raise the level 40mm. In short, having pumped out it took 2.5l to bring me up to the correct level and i have not needed to adjust it yet. Also, the improvements weren't instant, the notchiness melted away over a few days but i'm very pleased with the result. Its surprising how the transmission deteriorates without you noticing, its certainly a job that needs doing. Thanks again from the Black Country, UK.

[@Trashkollektiv]

I love your videos and enthusiasm for your CDI. I just bought a used 2005 E320 CDI with 88,000 miles and love the drive it's the best car I've ever owned. Thanks for your videos good job!

[@SonderMann1982]

The best part of this project is that all family members participate :) And that makes this video so special :) Thanks for time and efforts spent. I appreciate having saw that experience. [thumbs up]

[@singmenow4u]

Excellent video and audio explanation. You are the reason we drive a Mercedes, because it is worth the work.

[@jeromecarroll2181]

I got the Transmission Service Kit from ECS Tuning for $107.86 (Free Shipping). With the help of this video...I saved a few hundred dollars. Thank you Car D Ologist.

[@GranMastaDee]

Dude! If your wife should ever elect to divorce you ; simply show this to the Judge. You are a true leader among men and with the checkerboard garage flooring, palm trees and occasional police siren a perfect example of the American Dream. I ran to my files to discover that the previous owner of my '99 w140 - S320 had tranny flushed at 60, 90 and 120K miles ea. time adding a new data connector and I am at 137K. You and my records have covered everything I need to know about my tranny. Thank You. Very well done!

[@simonreeves2017]

Excellent thorough job. I'm going to steel it and use it on my S203 wagon. So much better than just dropping the pan, as you've shown, doing so changes less than 50% of the fluid, which is instantly contaminated by the old stuff when it circulates. Top marks!

[@standolfo]

You are the only one all over youtube that made the right Mercedes flush procedure

[@jat1mat1c]

Inspired by this video, I flushed my 2004 Jeep WJ transmission (MB CRD + 722.6). First drain out pan, remove it and clean = 4litres of fluid. Fill in 4l, run engine/go through gears ~20sec, stop and drain out pan = 2.5l out. Fill 2.5l and repeat 2 more times. After 3rd drain, remove pan, clean it, let drip for awhile. Replace filter and new gasket. Fill up so that drained qty equals filled qty. Fixed almost all my transmission problems (316000km on the car). Procedure is actually Jeep TSB method with small difference, original method included pan removal/cleaning in each drain phase.

[@naftab123]

very kind of you to have filmed this, much appreciated!

[@AlessandroGenTLe]

This goes straight into my bookmarks. I'm going to do this task in a week or two max. My car (S203 sportline 2.2l diesel) has the same 722.6 gearbox but it's 12 years old and I bought it from a friend that was using it just like 2200miles / years. It's practically brand new at 45000km (28000miles) and I am pretty sure the transmission oil is still the original one, regardless he was having MB to change the engine oil every 2 years (7000km - 4300 miles). Thanks!

[@Dave-in-France]

Hi there, first of all congratulations and thanks on an excellent video ! I have a Merc CLK 270 cdi that I bought about 1 yr ago. The engine had been service but the transmission hadn't and I was checking the level yesterday and the oil was in a similar state to yours, so I'm planning on doing a full flush as per your guidelines, not just a 3.5 ltrs "splash and dash". I am particularly grateful to see that I can disconnect one of the flow & return pipes (as you showed) to get the old stuff out.

[@karlwatson45]

Brilliant video just what I needed to see before I flush out my own E320 CDI transmission fluid

[@Bleriotman]

An absolutely AWESOME presentation, and completely accurate and thorough!

[@mattneibaur215]

Thanks. I just changed my transmission fluid and filter based on your video. Thanks for including the size of the nuts and torque specs...

[@technicsmelancholic6289]

Great vid,I have a 2000 E320 Wagon,I think it needs this procedure, I have to let the car warm up alot so the transmision does not give me any problems,feels dry,gears take longer or shift hard,after the car it's really hot transmision works fantastic !

[@juliofaena]

Best video documenting the flush procedure including the oil cooler line. Thanks sir

[@t3mtf8]

Thanks for the detailed walk through! Flushed my transmission this weekend, along with conductor plate replacement.

[@triantafillosmountziaris4697]

Nice video, but you can also use a fluid extractor and pump out about 1 gallon of ATF from the dipstick hole and replace it with equal amount of fresh ATF with no hassles. Repeat it three times after driving a little in between fluid exchanges and you replaced most of the ATF fluid by dilution quickly and easily. Do it every 4 years and it will be sufficient for this transmission. You can do this from the engine bay while wearing your suit :). The cost will be ~$20/gallon per fluid exchange, if you use the fully synthetic Valvoline ATF that is approved for this transmission and works fine. My 20+ year old ML is at 250K miles and the transmission runs smoothly.

[@cristianclaudiu8769]

Well done , I’ve learned a lot from your videos u doing great. Im glad I subscribed to your channel I have a w211 2008 model and did plenty of work on my own watching your videos saved plenty of cash ps my mercedes has 351324 miles on the clock now and the oil in the gearbox hasn't been changed an gearbox is very smooth and runs at is should anyway after watching this i will change my one asap.

[@SallyArmstrongTV]

Fantastic video, many thanks for putting it together . You have explained a great deal for a Mercedes Sprinter owner in the UK .

[@istvanmeissler2238]

Very helpful Dr. Thank you for taking the time to make this video. Your family were good sports as well.

[@suzannta2827]

Outstanding Video and Excellent step by step instructions. You out did yourself! Please do more we sure need them because it is very so expensive to go to the dealer for all repairs. I have AC problems, do you have any videos for that? Thanks to your family also for helping you do this video for all of us Mercedes owners. Also your daughter did a good Job. Congrats!

[@vincewindrider7792]

Its the best way to do it.If you choose the pressurized machine they use at the dealer you risk the blockage of the oil channels.Do it like this !!i ve done it on a few cars and its ok!

[@zoubirbelaribi77]

Great work, going to be doing this next week, same car, 2006 e320 CDI. Thanks lots

[@nestormendez3653]

Sir, your being meticulously meticulous for a job of this kind more than compensates for your bad math. Truly appreciate the sharing of your video, Thank you.

[@rleslie845]

I've been running MaxLife synthetic fluid in my Mercedes E320, and VW golf diesels for years. Great stuff, and a lot less expensive than OEM Fuks. Appreciate your video. Thanks.

[@heavymechanic2]

+R Leslie Valvoline recommends MaxLife on a 722.3 and the fluid works great in my old Benz. Today I did a drain and fill to freshen up the trans fluid, it looked normal w/o any deposits in the pan. Also added a red bottle of LubeGard as a top-treat to improve the ATF.

[@rleslie845]

+heavymechanic2 True happiness is achieved with clean transmission fluid.

[@kchilz32]

How are they running on maxlife now? I’m about to do the conductor plate on my 2002 ML320 722.6

[@jimhill5996]

Well done. I particularly like your attitude. Clearly, the Merc. dealers will only drop the sump at 40,000 miles to 'refresh' the fluid

[@swisscarmb]

Great Video, this is the way even Mercedes do the flushing. You don´t need the machines to flush the system.Some gearboxes may need the machines, because you need pressure to flush the system and some gearboxes have a thermostate that opens at 80 degress celsius.But the 722.6 like this one get flushed this way.And please don´t use automatic cleaner into the oil.Upon the hydraulic steering plate is a plasticplate with all the sensors and may not like aggresive cleaner. great you do this work to go under the car when you don´t have a lift.I agree with you in the whole way.Thanks

[@Lockemeister]

This is EXACTLY what I need to do. I can't thank you enough for doing this video!! My local Mercedes dealer told me $389 (before tax and shop fees), for filter and full 12 quart flush. which I guess isn't that bad, but why not do it for half the price.

[@Bleriotman]

AND KNOW that it was REALLY done!

[@Lockemeister]

@@Bleriotman I read that at a Honda Dealer, the actual technician who worked there said that when people requested a brake system flush, some techs were just sucking out the fluid in the master cylinder reservoir and replacing the sucked out fluid to make it LOOK like they did the flush.. These techs never did the flush of the braking system

[@Bleriotman]

@@Lockemeister There are a number of videos on here, of women going to oil change places, and they don't actually do anything to the car. They just stall the person around for 30 minutes, and then give them a bill to pay. Most of them have been caught with small video cameras, so the woman could watch and see exactly what they did to her car, which usually was nothing at all.

[@Lockemeister]

@@Bleriotman Pretty disgusting. I thank God I'm able to do most of the cars maintenance and repairs myself.

[@karlwatson45]

Excellent video . I'm sure this has helped many people. As it has also for me thanks

[@hchaud01]

Excellent Video. Very informative. I am going to do my transmission oil flush now as your video made it seem like it's a pretty straightforward process. I have a 2005 e320 CDI and running at 347000km now and have no idea if the previous owner did the ATF flush :|

[@stevenk7838]

I took off the transmission pan expecting to flush the transmission at 115,000 miles. Then WOW this CLK350 pan was missing both magnets! I had forgotten to reinstall the magnet on a Plymouth van once so I put a BIG magnet on the bottom of the pan. I had gone to Home Depot and got as many of the things I could buy. Replacement magnets cost a couple dollars for a pack of 6. I would need a new garden sprayer and tubing for the adapter that fits into the pan. The Transmission is sealed and the fluid needs a pump from the drain. I bought a 2008 Mercedes CLK350. The price was an indication of no service records. So all fluids need changing so I know when it was done.

[@aboyd1988]

Very well done. The shaky videography, however, did not live up to the quality of the information! I will definitely be using this for my own DIY project.

[@beachboy1234]

Wish I could have seen which transmission to oil cooler line you cracked open! Key (critical) point. Also, what are the diameters of the two lines?

[@gooberon]

If we could all be this exacting the world would be a better place. : ) Good job

[@cpsadp99]

Great video. I want to do this in my C240 and the way you did it looks like the way I need to do it.

[@konasteph]

You are too young to remember how having a VW1302 bug in the 70's felt. That was your daily get-to-work tool. All you needed was there, even a radio. The gearstick was in the way, though, when it came to certain activities that involved young ladies. How does the Benz do in this regard? (this comment comes from an old Mercedes diesel lover) Great video, thanks. And thanks for not including obnoxious music. Have safe trip!

[@wtewyweyewywey157]

Great VDO very clear instruction.

[@LiamRoberts00]

Brilliant video this is my next job.I have been having problems with a Mercedes E320, shudder or hydraulic knock not quite sure what to call it, I've changed all the rubber mounts to the engine and transmission and lastly the diff oil, it is still present but greatly reduced but not fixed

[@arek8905]

You did learn very good and now you are professional. God bless you.

[@ramoncastillo6974]

Excellent video, What's really important is getting the kids involve in a young age to learn the importance of proper maintenance of the second most expensive investment of people's lives, Not only that they will save money but more importantly is to insure their safety. The mechanics do a lot of short cut not to your favor, They are time pressured (lets pace it...they need to make money just like everyone else) and yes you'll pay a lot of money for what little you get, Mechanics gets you back on the road but they want to see you real soon. You don't have to be a mechanic but at the very lease have an understanding of what's go on your vehicle so that even if you pay a mechanic you would know what to expect for what your paying for to resolve the problem. Last but not lease is that mechanic respects you for knowing your stuff and makes his job easier because you know exactly where the problem is. thanks for the video.

[@DestroyerWill]

Great video - I'm giving it a go. Thanks from Australia

[@annsaldivar6767]

Hello, my son has a 2003 C320, we had the transmission replaced less than a year ago. Recently he went to drive his car and put it reverse and it wouldn't move. It was late in the day, so didn't try to do anything more. Next morning thought he would try it again. This time went in reverse and drive. He didn't drive the car, but called the transmission shop, They checked it and said that coolant had leaked into the transmission. Said the radiator had a hairline crack. This was not covered under the warranty. So had the car towed home. Did some research, replaced radiator, the transmission fluid had already been drained. In our research it was suggested that it's possible that since the transmission is pretty much new that it's possible the coolant leak may not have damaged the transmission yet. The shop didn't flush the transmission either. We can upon your video and all set up and ready to follow your process, since the car didn't have any fluid in it we just filled it with 4 liters started the car but it only drained a very small amount. So I thought I would ask if you had any suggestions or ideas why the fluid isn't coming out. Sorry for the long story, thought it would better to give you some history on the car.

[@georgeanddaddecker7563]

Sealed for life is very much 100,000 miles . Very informative and well executed video. Thank you. Have you done this again at 40k?

[@UPMXIV]

Great video. Are you able to create a video on the procedure of how to perform a replacement of the brake pads on the E320 CDI? If you could, that would be awesome!!!!

[@sarahdell4042]

Incredibly helpful video. Thanks

[@jfaz]

Thanks for your video, I just did this on my E55 and it worked perfect.

[@eciaccord]

Excellent video!!! Thank you so much for posting!!

[@patrioticoath1376]

Nice job!! Thanks . . . I too have stayed at a Holiday Inn Express, and so I am changing my ML320's fluid today

[@rubenlopez1172]

How was it over all I'm planning too change mine as well I have a 98 MB ml320...what oil did u exactly use...is there a good difference in anything...thanks

[@xtaxplayer]

ruben lopez First I used a cleaner for about 100 miles then put in Mobil synth oil and added a conditioner that came with the cleaner... Still running excellent! about 16k miles since this post

[@rubenlopez1172]

For the trans?

[@xtaxplayer]

ruben lopez Yes it is Mobil's transmission fluid Silver bottle.

[@snoopdog6426]

You have mastered this. Nicely done and done right.

[@vincentmolloy5660]

Great video. Best on the internet so far however none of you mentioned whether you check the oil level with the engine running or not???? If it wasnt for me hearing that you had the engine at idle i wouldn't have known. In other videos the engine is off?? It gives you two two very different readings. Can someone please clarify when checking the gearbox oil on this model, engine on or off???

[@jinzoboy]

Good video! Im about to do my E350 4matic 722.6. Depending on the condition of the fluid at the pan, I might just do a drain the fill with ATF 134. The transmission was fully flushed at 50k, now it's 100k. If yall are not comfortable doing the "flush", you could always do the drain and fill twice or three times, but that will cost a lot more materials/oil.

[@blackericdenice]

You only need to drop the pan and change the filter. More than half the old fluid will drain out. The fluid left in the unit will mix with the new fluid and want turn it dark as fast as you say.

[@BIGMEL2024]

great job,very helpful to me with my 2000 clk320 thanks from DALLAS,TX!!

[@VladWork]

Thank you man! I'm re flush my 722.6 mercedes w203, transmition works smoothly!

[@rubenlopez1172]

Is that the same tanning as a 98 MB ml320?

[@viliusr.8792]

Hello Vlad, did you do the same way as shown in the video? 3 liters in and 3 out? can you do all in one time? as 3 in 3 out might cause oil to mix

[@fernandogonzalezruiz6600]

Thank you Handyman nice View grtz Form South Spain Cadiz

[@colinaglae2605]

Wonderful Video. Gave me a good idea, how sort out my transmission fluid !!

[@roadsonboard]

Great video. Confirms I can do what I thought should be possible as I've heard the stories with these automatic gearboxes and looking to buy one as a daily driver.

[@jadesluv]

You should be more informative as to where the dishwasher drain line connects. It gets connected to the trans mission cooler side (radiator side) not the transmission side, in this way the transmission cooler also gets flushed along with the torque converter. Thanks!

[@kubaSWAT]

Can You explain more? please i dont get it

[@jadesluv]

@@kubaSWAT hello, this vid is great EXCEPT its impossible to tell which of the two lines to disconnect. You want a 5/8“ ID clear vinyl hose and a hose clamp. Now which line? Trace the line to an upper connection on the radiator. This is the line but disconnect it under the radiator. The hose goes on the non-nut side of the line, this flushes the TC and the cooler. This is the return line back to the transmission.

[@28imike]

Thanks for the video. I'll be doing it myself next week.

[@svetlinstaykov9866]

Hello, Thanks for the great video! I have a 2007 E320 CDI 722.9 7G gear box. I am planning to flush the transmission fluid soon and was wandering if i can use the same flush technique?

[@jinzoboy]

+Svetlin Staykov I would not DIY a 722.9 tranny. You would need a lot of tools including STAR to do the job properly.

[@TheoCook]

Smokey Bean hi What do you mean by STAR? I was thinking of doing this to my 7g gear box.

[@InterimMusic]

Thanks for a practical demonstration. I have just bought my 1st E270cdi 2004 and I am just about to undertake carrying out this procedure and replacing the Transmission converter plate. I did wonder why you didn't use a mix of flush at the start, was there a reason for this? Just one other thing, when draining the additional 3 + 3 ltrs from the nozzle at the front of car, was this to drain the torque converter? Regards

[@vatorob702]

good video!! you are my hero. done right and on budget!

[@shovelhead7548]

Sehr hilfsreihes Video. Danke.

[@yoonchoi2078]

Can share where you got your transmission fluid from? I searched Ebay and the price were dealer price.

[@Nick-bp7jf]

Tens of thousands of Jeeps drive around quite happily with ATF+4. Same transmission.

[@moisessoria9461]

I got to do this to my Clk I replaced the conductor plate and the ATF was really dirty I drive for couple of days and it’s started making a whining noise so I checked the fluid and was dirty again so I was like f*ck it that’s it but now that I see this it’s a good idea to fill and flush couple of times to have good looking ATF and keep the transmission running good thanks for the vid helped me out a lot

[@sicilianstyle4517]

Thanks so much. I had my transmission "flush" done by my trusted Benz mechanic, however, he only did the standard pan removal and drain, replace filter, etc. This was about 7000 miles ago. Does this flush also circulate and clear out any old fluid that's in the pan? Can I get away with doing this flush WITHOUT getting under the car and draining the pan/changing filter/etc since mine was done 7000 miles ago?

[@Kielyn123]

An excellent video and very informative. Just want to confirm as I was not totally clear on which line is the return line from the radiator to hook up a plastic hose to drain the fluid into a container. Facing the car it looked like you disconnected the hose on the right, closest to the passenger side. Is that correct?

[@PaulPhillipsFix]

I'd like to offer a tip that helped me flush my system thoroughly. Get a 20 to 24 inch length of black, heavy garden hose. Fill a gallon jug with fresh ATF and firmly seat garden hose in filter intake port and place in gallon of fresh fluid. Have someone start the car and cycle through gears until fresh pink fluid runs from transmission. Be careful not to allow gallon jug to empty as you don't want to draw air and damage transmission pump. This will give you a true flush and evacuate old fluid from torque converter as well.

[@foreshadow2120]

Hello, Paul, I'm about to embark on changing out the old transmission fluid is it worth draining the torque converter or is this not necessary as the new oil cycles through the system whilst filling??

[@PaulPhillipsFix]

If your car doesn't have a drain plug in torque converter you will only be draining a portion of the fluid. Not much sense mixing old fluid with new, defeats the purpose. After you drop the pain remove the filter. Get an 18 inch piece of heavy garden hose and tightly hold to intake where filter draws fluid in. Place the other end of house in gallon jug filled with fresh fluid. Have someone start the car and run through gears until you start to see nice clean fluid coming from transmission, then your transmission is flushed. It'll pump old fluid out of torque converter and cooling lines as well.

[@PaulPhillipsFix]

Sorry 20 to 24 inch piece to be sure you'll have enough hose.

[@PaulPhillipsFix]

If you want to save money in future use Shell 134 ATF it meets requirements for 722.6 transmission.

[@foreshadow2120]

Thanks Paul much appreciated, the more research I do the closer I feel I get to the fault, I have a judder which possibly is coming from the torque converter.

[@mauivi1113]

Ey buddy. New idea and it is good. Thumbs up from overseas. TX.

[@lennyforster4678]

Hi great video 👌 I'm wondering if this will this be the same procedure for my mercedes e320 cdi 2003 5 speed? Many thanks lenny 👍

[@petermainwald6413]

can you be more clear as to which line underneath you attached? Looks like the one thats closest to the engine?

[@89grand]

Anthony Wiener...before his life went sideways.

[@AndyMaikel]

you sir are a very smart and thoughtfull person. bravo! tnxs for this vid!!!!!!!

[@konasteph]

This video is now several years old, nevertheless.....can you Mr. Car D. Ologist say a few words about removal of the alternator? I searched high and low for an applicable video, or even instructions only, but so far haven't come up with any hits. The alternator on this model (OM 648, straight 6 diesel) is rather well hidden, unlike on the v 6 etc models where removal is rather intuitive.

[@PARDS2]

REALLY A SUPERB JOB!!!!! VERY WELL DONE!!! BTW, HAVE YOU EVER FIGURED OUT HOW TO DO A DIESEL PURGE ON THAT ENGINE WITH THE COMMON RAIL AND DIRECT INJECTION--

[@belabrethi6727]

no purge valve on diesel engines

[@farerse]

Are you going to do the conductor plate too? That's a fun and messy job, would be interesting to see your take on it!

[@georgeanddaddecker7563]

Well done! How is the vehicle doing currently?

[@doublebasserrazzmuss2408]

Uh oh, Krap,help! think I got the wrong ATF? I have a 2001 Jaguar XKR 4.0 supercharged. It has the 722. Mercedes transmission. I ordered the fluid and received and put in the following: Nr 29449/MB 236.14 Automatikgetriebeol. Followed your instructions, Drove it around the block, runs great, but slight burning smell. Found a site that says correct fluid, found one site that says not the correct. Maybe smell is spilled fluid? maybe incorrect fluid? Any help out there? Please? Thank you

[@jinzoboy]

+doublebasser razzmuss if your Jaguar have the 722.6 tranny, the 236.14 spec fluid will work with it. Whenever the 722.6 was first introduced, 236.10 was the spec, but over the years, Mercedes calls for 236.14 in both the 722.6 and the 722.9 tranny.

[@doublebasserrazzmuss2408]

+James Zeng ok thanks.

[@mohamedabouchitaa4735]

You've done a good job my friend

[@seshachary5580]

very educative. Thank you regards

[@burgerbirger2221]

Sealed for life is a joke. VW had the same concept. Great vid.

[@glasser2819]

sealed until it blows up and you need a new car 😂

[@vladimirvladimir3143]

I ALWAYS replace the connecter together with the fluid and the filter (every 60.000 km). The connector is €9-12.

[@anlpereira]

Hi, great video. When you talk about the right side of the transmission(20:13s) you mean it is in the side of the electric connector of it? Or in the oposite side? Thanks a million.

[@papy282]

Hi, great video, after watching it I will change my fluid on my e320 cdi. Just a quick question: what gear should I use for flushing the fluid? or just leave it in " P ".

[@MistaChubbz.]

Your post saved my LIFE! thanks =)

[@petarnaydenov2861]

Man u r the best

[@emsman59]

Nice job, my Dodge Challenger r/t has the NAG1 Mercedes transmission in it which I believe is the same as you have. You can take it to Dodge and they will perform a complete fluid exchange with a machine for around 200.00 dollars...fyi. ps how did you transmission do after the exchange...any problems? Thanks for you time.

[@rew3363]

Hi Can you tell me why you are fixing all these issues on the car and not just buying a car that is in a good nick? just curious.

[@Ray-hg3ie]

Would you tell me what type of torque wrench you use and what capacity needed to do most of the procedures on the 06 W211 E320 CDI. Have been unable to locate a newton meter torque wrench.

[@atos.nympha3451]

I am wondering why you put new filter in there before flushing it! I would keep the old one in there , keep flushing it till I see the cherry red oil exiting (my point is even if the old dirty filter can spit out clean oil then the tranny is very clean . I will put new filter in there then.. ). This will assure me that the tranny is very cleaned out, but what you did is fine too just that I think the new filter might have caught some iota of dirty oil but since you were seeing cherry red oil on the 3rd flush well ..the heck with it at least 99.9/100 clean is assured. GOOD JOB ! GOOD VIDEO ! Beth good filming ! drive it the prom will ya .!!

[@heavymechanic2]

+Ato Nympha Hi, the reasoning behind replacing the filter is to push new clean fluid through the pump & Torque Converter and purge the old nasty fluid from the oil cooler line. The old filter can pass crud from the detergent in the new fluid leading to contaminated fluid. Clean ATF added to the pan with a clean filter (strainer) and the work is only done one time. This changes 80-90 percent of the fluid and its easy to do with an assistant.. I hope this helps

[@johnhall4427]

@ Atos.nympha What your saying doesnt make sense. Hes got a clean oil pan with new filter. Hes adding the new filter then adding clean new oil to the pan. The filter is the point at which the new clean fluid gets sucked up into the transmission. No dirty fluid is being sucked up by the new filter or being mixed with the new filter or new oil till after the clean fluid leaves the filter. Then gets flushed out into his jug.

[@AndreasLudwig777]

Nice job!! Thanks for making the video, appreciate it!

[@Al-px9un]

$Good Job ,to do transmission flush at the dealer costs between 365 to 600 good tips make people save lots of money

[@dejesusmanuel5807]

I really apreciate this video is amazing and a lear a lot about my mercedez Thanks very very very much

[@sageralkhalifa2602]

I would've flushed with old filter. Then install new filter and added the 3.5 L.

[@Melo_Alienware]

the old fluid never cycled back to the filter the hose was disconnected only the fluid he add was touching the filter !

[@andrewrudge7791]

I wouldn't.

[@card.ologist4570]

Sounds like a good idea. Next time

[@dzodaj]

good idea for a good video...I would even reuse superglued stupid red locking pin even thou it is not doing anything but locking, an as I heard the cap want go anywhere with or without it:)

[@barthill9578]

Better to replace filter add fluid then flush.