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Old 04-20-2010, 11:51 AM   #1 (permalink)
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Rear Differential fluid change

Hello fellow MDXers,

I just did the rear diff change on my 09 MDX yesterday. Correct me if I'm wrong.

1) You don't have to jack up the car as long as its level. Take off spare tire.
2) Locate the fill plug. This is a little tricky to get to - there is a hole cutout for the fill plug in the black suspension piece. Directly below the fill plug is the drain plug.
3) Using just the socket wrench (3/8), take off the fill plug and washer. Its on pretty tight, so use an impact wrench or just brute kicking leg power force.
4) Using just the socket wrench, loosen the drain plug. Place oil/fluid collection pan directly below the drain plug. Take off drain plug and washer. Wait about 10 min for draining the rear diff.
5) Tighten the drain plug with new washer using 25-30 lb/ft of torque.
6) Pump 2.675 QTs of ATF Z-1 using diff pump (get at Autozone or any auto parts store).
7) When you're done - you should see some of the fluid dribbling back from the fill plug hole.
8) Tighten the fill plug with new washer using 25-30 lb/ft of torque. Put back spare tire.
9) You're done and saved some cash!

Notes:
Step 6 - Using the pump with the ATF fluid can get messy - use as many cardboard pieces and old newspapers on the ground to keep clean.
Disclaimer - try at your own risk, I just wanted to pass on some stuff I learned yesterday.
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Old 04-20-2010, 03:02 PM   #2 (permalink)
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hmmm sounds easy..mine just pop up the B16 code @ 15000km...by the way how do you clear the maintenance minder B16 after you done your oil change?
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Old 04-20-2010, 06:29 PM   #3 (permalink)
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Quote:
Originally posted by hjamir32
by the way how do you clear the maintenance minder B16 after you done your oil change?
Its in the owners manual.
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Old 04-21-2010, 03:40 PM   #4 (permalink)
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It is in the owners manual - I think you have to hold the SEL/RESET and another button on the steering wheel to clear the maintenance minder.
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Old 04-30-2010, 02:39 PM   #5 (permalink)
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Re: Rear Differential fluid change

Quote:
Originally posted by cool555
Hello fellow MDXers,

I just did the rear diff change on my 09 MDX yesterday. Correct me if I'm wrong.

1) You don't have to jack up the car as long as its level. Take off spare tire.
2) Locate the fill plug. This is a little tricky to get to - there is a hole cutout for the fill plug in the black suspension piece. Directly below the fill plug is the drain plug.
3) Using just the socket wrench (3/8), take off the fill plug and washer. Its on pretty tight, so use an impact wrench or just brute kicking leg power force.
4) Using just the socket wrench, loosen the drain plug. Place oil/fluid collection pan directly below the drain plug. Take off drain plug and washer. Wait about 10 min for draining the rear diff.
5) Tighten the drain plug with new washer using 25-30 lb/ft of torque.
6) Pump 2.675 QTs of ATF Z-1 using diff pump (get at Autozone or any auto parts store).
7) When you're done - you should see some of the fluid dribbling back from the fill plug hole.
8) Tighten the fill plug with new washer using 25-30 lb/ft of torque. Put back spare tire.
9) You're done and saved some cash!

Notes:
Step 6 - Using the pump with the ATF fluid can get messy - use as many cardboard pieces and old newspapers on the ground to keep clean.
Disclaimer - try at your own risk, I just wanted to pass on some stuff I learned yesterday.
Nice description. The only thing I would add is that you should make sure you can loosen the fill plug before you drain the fluid. You don't want to drain the fluid and find the fill plug is stuck.
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Old 05-31-2010, 11:12 AM   #6 (permalink)
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Smile What's the washer size's for rear differential

Does anyone know the mm or better yet the part#s for the crush washers for the 2007 and beyond? I purchased these for our 2001 MDX first change at our local Acura parts & they gave me the wrong size for the drain plug....Thanks
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Old 03-20-2014, 03:09 PM   #7 (permalink)
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I just did differential and transfer case gear oil yesterday on my 2013 MDX. The differential uses 20mm crush washer for the fill plug; 18mm for the drain plug; transfer case uses (2) 20mm; and engine oil drain uses 14mm, crazy isn't it.
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