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I have one almost identical. It looks like a nightmare due to the tiny tongue fit you had to work with!

Very impressive glue strength 😮😅

Is there a purchase link to that boot?

Was the split boot universal or different sizes available by vehicle specified?

Hi. Any update after 4 months ?

Wheres the fluid going? Is there a common leak point?

on the earlier oil comments . power steering fluid or transmission oil are both hydraulic oils and would prob. work. the red fluid would be easy to see in resevoir.

what type of glue? where from, the split boots from Ali don't come with glue

if there is no gimmicks, that glue strength is impressive,,,

Thanks for your video. I was able to fix this issue in 10 mins with clear instructions. Appreciated.

Does anyone know where this pump is located in the same year R class?

Is the hydraulic pump at the same location for a 2013 Mercedes gl450?? I’m having a hard time finding it, and I’ve gone through the steps in the video already.

I am surprised to see that MB did not make access possible only from under the trunk just to make it more difficult to fill oil. Oil does not evaporate, yet could not see a trace of leaked oil, so where does the leaked oil !

What fluid has gone in

Good deal, mine has stopped going all the way up so I will check this tomorrow.

Good video but I’m concerned about putting the collar on and taking it off every night how long the tube coupling will hold out for before getting worn out ?

Damn I found this video on something totally unrelated to what I’m looking for but I’ve been wondering what the Hells been wrong with my hatch for a year now I want to head and added your video to my playlist on On my Benz

Great 👍

Thank you!!! My ML63 pump was whining and grinding from cavitation. I found the pump reservoir dry with no single drop. So I added Mercedes hydraulic steering fluid and its smooth and quiet.

Very informative video! Gonna try this! Thanks for sharing!

Excellent vid. I was wondering where this pump was! One question (and hopefully you're still reviewing comments on this vid), was there a need to prime the pump or bleed it to get out any air bubbles? I saw that mentioned on a forum but didn't see you do this and wouldn't know how to do this w/o some instructions. Thanks!

What is that Bosch thing for, level?

Good on you for taking the time to make this video mate. It was very helpful. Good karma to you

Brilliant, simple review. Thanks for sharing this. Just wondering how the collars are doing, now they're a couple of years old

i had to hit the M key to stop the"noise" very easy to change this filter< thanks for the video;

my power steering is hard and i just bought a replacement and still hard to drive .... i am confused

Hi, my power lift gate does not operate at all, it beeps though when I press open. Also the red light in the open/close does not light. Any idea what's wrong?

Did you every find the leak?, thanks for posting. Just bought ML with problem hatch... it will close but not open.

Want to add this video saved me from disabling the system and converting to manual. The tailgate would open fully with no problem but when closing it would bounce (kind of drop), stop, return to full open, and beep. I added fluid as the reservoir was nearly empty. Now, I may have a leak and time will tell, but in the meantime this is a fix. On my 2011 W164, there isn't a line, just a circle and when filled to the circle with the unit upright (vertical, reservoir on top), the system operates properly. As others have stated, Aircraft Spruce carries Aeroshell 41, a fluid that passes mercedes 342.0 fluid specs for this hydraulic system. If this does not fix the issue (long term) I intend to disable the auto tailgate and convert it to manual, as per a handy fcp euro blog.

1. Thanks for researching the replacement fluid - useful info. Aircraft spruce seems to carry aeroshell 41. I am sure there are other suitable hydraulic oils - the mercedes oil has a peculiar stink to it and is very low viscosity. 2. Looking at the way the pump works I don't think there really is a maximum level - it is basically a piston pump driven by an eccentric cam. Sure fill it to the level but I don't think going over would affect anything. The pump is fed through a shaft in the middle of the housing so that is the critical level 3. The common failure is the connectors corrode - clean with contact cleaner and put some white lithium grease on them. Grease everything and the motor pump should last for a long time. Shame on mercedes for such crap execution - they stuck it in a foam condom at the bottom of the trunk, what did they expect? 4. Regarding cleaning the pump of 'dried residue'. its a hydraulic pump! There will be no 'dried residue'. Sure take it apart if you are curious - be careful when you remove the bronze pump body, it is full of tiny hardened pins that will disappear forever when they fall on the floor. Disassemble over a suitably deep dish. There is a solenoid valve and some very small o-rings and that is about it. 4. In answer to Marco, the passenger rear contains the fusebox and SAM - the SAM is prone to death because water leaks through the rear lens and shorts the circuit board. typical modern mercedes - no conformal coating even though there is no justification - it is all low power. They could have put it in a sealed box but no and these things have been dying in this manner for 10+ years. In the u.s. the box is 400 delivered new, in Canada they give you a 'refurbed' one for 950$ and the core is 350$. And they will insist on programming it whether it needs it or not (mine did not). Jerks

can you do a more indepth review on whats inside the rear corepanels in both side and besides under the fluid pump

So was the gate not closing or opening before you added hydrulic fluid? What was the cause that led you to check that particular pump, thanks in advanced.

Great Video! This is a big secret at Mercedes. Thank you for sharing the location.

What was the problem that led to this?

You guys coulda been hammering the bottom of the car this whole time and we wouldnt have known... I like the humor lol But next time show the real process please so we may learn :)

Nerd lol

could you tell me is there any other fuel filter,s under vehicle thank,s alan .

lol you guys are hilarious, good humor,.

volts X (times) amps = watts

:) It's good to have real people on you tube.. all the best to you mate

Hi Alan :) Embarrassingly no. My excuse is that we had no previous car knowledge and had an overheat problem which eventually turned out to be the head. We put the intake on the bonnet to try and help with the overheat(not knowing about the head). Although this obviously turned out not to help, it did help us become very popular on the track days as everyone wanted to know what it was and came to talk to us LOL. Worked out well as we met some great people :)

Is that a turbo intake on that bonnet???

i have a question, have you measured the voltage coming off the two terminal on the main board, which is responsible for turning off the unit after you open the back assembly. Mine only has 3.2V coming off, i don't think that's enough to charge the battery which needs to be more than 4v. But the funny thing is, this unit is able to turn on if I plug in a wall charger, but that's only in charging mode.

I replace my SGS2 original battery (1650mAH) with $7 ebay battery (2100mAH ). It last 2x longer than the original and produce less heat. My SGS2 usually only have 20% battery life when I finish work. With new ebay battery, I still have a whooping 75% battery remaining.

couldnt get the shift lever out underneath hey, i know how bitch that clip is lol

gutted guys that happened recently to me so i upgraded +1 mm stainles steal valves from VAC motor sports in america. i went a lil crazy with the old bank and spent about 5-6 k with them should have a beast soon ;) if u ever look at there site ull prob see why -_- hope u got her up and running again

Loved the impromptu guitar solo in there,every car vid should have one.My 2 loves,my e30 and my guitar......oh and the wife!

Didn't leave the factory with that cone intake LOL

nice vid but i wanted to see some fucking work being done!

I stumbled across your video looking for R888 videos. I'm planning to get a set of dedicated track wheels and these tires to run instead of the RE-11's I ran for both street and track last year. The look like a good deal. Great driving guys!