4Matic front differential oil change
Thread Starter
Junior Member
Joined: Oct 2013
Posts: 44
Likes: 7
2007 s550 4matic
4Matic front differential oil change
I just changed fluid in my front differential without removing the shaft nor other parts. It is time consumed and a little messy but if you have a small pump and wear gloves then it is very quick and easy. Attached is a picture of stuffs I used, a 3/8 OD(outside Diameter)clear hose, 3/8 hose x 1/4 NPT fittings re-tapped to 12mm x 1.50, a bicycle pump, a small funnel and a tie-wrap.
Steps:
1- Drain old oil and measure the amount collected.
2- Screw in the 10x1.5 fitting and plug in the hose, just hand tight
3- Route the other end of hose to upper area for gravity feed.
4- Attach the funnel to the hose fitting with tape and secure it to something.
5- Pour new oil into the funnel ( add few extra ml of oil). It takes 50 minutes for 650 ml of gear oil.
6- When oil is cleared the funnel, use bicycle pump to push the oil further.
7- As soon as the oil cleared the hose, bend and kink the hose quickly to prevent oil from flowing back to the hose. Use tie-wrap to keep the hose kinked.
8- Get under the car, have the drain plug within reach, remove the fitting and plug the hole with finger. Grab the drain plug, remove the finger and screw in the plug.
9- Tight up the plug and you are done.
You will loose some oil so you added few extra ml. Make sure to go from fitting to finger then finger to plug or if you not fast enough you will loose a lot of oil and bigger mess.
If you have a pump then pump it instead of gravity feed then it will be faster. Hope this will help some one.
Steps:
1- Drain old oil and measure the amount collected.
2- Screw in the 10x1.5 fitting and plug in the hose, just hand tight
3- Route the other end of hose to upper area for gravity feed.
4- Attach the funnel to the hose fitting with tape and secure it to something.
5- Pour new oil into the funnel ( add few extra ml of oil). It takes 50 minutes for 650 ml of gear oil.
6- When oil is cleared the funnel, use bicycle pump to push the oil further.
7- As soon as the oil cleared the hose, bend and kink the hose quickly to prevent oil from flowing back to the hose. Use tie-wrap to keep the hose kinked.
8- Get under the car, have the drain plug within reach, remove the fitting and plug the hole with finger. Grab the drain plug, remove the finger and screw in the plug.
9- Tight up the plug and you are done.
You will loose some oil so you added few extra ml. Make sure to go from fitting to finger then finger to plug or if you not fast enough you will loose a lot of oil and bigger mess.
If you have a pump then pump it instead of gravity feed then it will be faster. Hope this will help some one.
Junior Member
Joined: Aug 2006
Posts: 20
Likes: 0
From: Zurich
CL203 C220 CDI coupe & W114 203.6, W221 S500 4Matic
In my understanding of the W221 7G 4matic transmission, the transfer case is lubricated from the main gear box - It's integrated. The high failure rate as seen on 7G integrated 4matic transmissions (Check the GLK forums) is due to oil starvation to the integrated transfer case.
I'm not sure what you have done? It may have a drain plug - But it's not meant to be used in the way you have.
- I speak from experience having serviced my old w211 4matic, And having had the entire transmission replaced in my 2010 s500 4matic due to a worn bairing.
I'm not sure what you have done? It may have a drain plug - But it's not meant to be used in the way you have.
- I speak from experience having serviced my old w211 4matic, And having had the entire transmission replaced in my 2010 s500 4matic due to a worn bairing.
Newbie
Joined: May 2015
Posts: 8
Likes: 0
2008 S550 4Matic
Thanks very much for DIY that is what I am planning to do to my 08 S550 4Matic.
I have two questions before acting to my car.
1) What kind gear liquid you were using to your S550. I am planning to use Lucas 75W-90, but MB recommand 85w-90.
2) Where is the front differential location ? Should I remove the front bottom rubber panel or the rear one only ?
Thanks.
I have two questions before acting to my car.
1) What kind gear liquid you were using to your S550. I am planning to use Lucas 75W-90, but MB recommand 85w-90.
2) Where is the front differential location ? Should I remove the front bottom rubber panel or the rear one only ?
Thanks.
MBWorld Fanatic!
Joined: Dec 2015
Posts: 1,381
Likes: 32
Acura TL 2008 - Acura MDX 2012
Thread Starter
Junior Member
Joined: Oct 2013
Posts: 44
Likes: 7
2007 s550 4matic
Thanks very much for DIY that is what I am planning to do to my 08 S550 4Matic.
I have two questions before acting to my car.
1) What kind gear liquid you were using to your S550. I am planning to use Lucas 75W-90, but MB recommand 85w-90.
2) Where is the front differential location ? Should I remove the front bottom rubber panel or the rear one only ?
Thanks.
I have two questions before acting to my car.
1) What kind gear liquid you were using to your S550. I am planning to use Lucas 75W-90, but MB recommand 85w-90.
2) Where is the front differential location ? Should I remove the front bottom rubber panel or the rear one only ?
Thanks.
It is located after the steering rack-n-pinion and I can not remember what panel to remove.
Trending Topics
Member
Joined: Mar 2020
Posts: 91
Likes: 43
2013 W221 S550 2016 C217 S550
Bringing this back! Thank You to the OP for posting this. I searched all over looking for a DIY on this. Everywhere I looked it said "remove the axles"to fill the fluid. I threaded the fitting as described. Worked great! My car needed this as the fluid came out black at 100k miles. Mercedes what are you thinking by not having a fill plug?
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Junior Member
Joined: Mar 2006
Posts: 24
Likes: 5
2013 E350 4matic Wagon, 2002 E320S4 - E-class W210 Wagon 4-matic
You can use ATF fill adapter
It appears that Mercedes ATF filler adapter is M12x1.5mm, so it can fit the front differential drain hole. You can use any hand pump based fluid dispenser to dispense gear oil into the front differential through the ATF filler adapter.
I found a video for quickly removing and replacing an oil pan plug -
. This same procedure can be used for removing the ATF filler adapter and quickly installing the drain plug without losing much fluid.
I have a w212 4matic which has the same issue with front differential - no fill plug, only a drain plug. I plan to try the ATF fill adapter.
I found a video for quickly removing and replacing an oil pan plug -
I have a w212 4matic which has the same issue with front differential - no fill plug, only a drain plug. I plan to try the ATF fill adapter.
MBWorld Fanatic!
Joined: Apr 2016
Posts: 1,493
Likes: 254
2014 S550 AMG, 2017 XT5
Newbie
Joined: Dec 2020
Posts: 9
Likes: 0
w221/ s350 4-matic
I only did it this week and used an adapter at the front with which I can now change the oil without any problems. Now use the rubber tube, injektion and Stahlbus® oil drain valve
Translated with googletranslate
Greats from Germany
Translated with googletranslate
Greats from Germany
