3rd gen Acura RDX 2021 A-Spec front transfer case drain and fill hole locations

[@xl6589]

How many quarts to do drain and refill for the front transfer case ?

[@attocoulomb]

0.61 qt, according to the owners manual (specs like this are in the "information" section -- page 687 for the 2022 RDX). From what I have read, be careful not to re-fill it too fast. The fluid can back up, and make you think that you have gotten it full when you have not. Measure how much drains and take note of how much you have put back in.

[@carstuff8208]

​@@attocoulombcould.you please tell me which honda fluid it uses, have not done it yet myself but I know it is different from the rear diff dual pump fluid, thanks!

[@carstuff8208]

Sorry I was bever notified about your questions

[@KforConstant]

​@@carstuff8208 TRANSFER Case assembly: HGO-1. Part# 08200-9014(A) Acura.bernardiparts has a good fluid chart for acura

[@thientran269]

How to remove refill bolt? I don’t see any room back of transfer case.

[@carstuff8208]

Need to maybe use extensions to get a place where you can attach your ratchet

[@909boyz9]

Can yoy be specific on where the fill bolt is located?

[@carstuff8208]

The front transfer case is located in between the transmission and the front passenger side axle. Drain bolt will be under the transfer case and fill hole bolt is located on the left side of the cardan (driveshaft to the rear differential).

[@carstuff8208]

Did you found the oil plugs? Let me know, I can elaborate

[@carstuff8208]

Haven't done it yet, judging by the sizw of the transfer I assume 2 quarts and it will start pouring back through fill hole before you finish the 2nd quart, most likely

[@jtproductionz4431]

Fill bolt is on left side? The driver side? Or passenger side? The camera angle is kind of hard to understand where you are in the vehicle... are you near the wheel well or do you need to reach around wheel area to access fill plug.. ? Sorry I've done rear diff & transmission fluid just need to do the front diff which I can't find fill bolt

[@attocoulomb]

@@jtproductionz4431 In the first part of the video, the view is looking toward the front of the car. This is nowhere near a wheel well. Fill hole is to the left of the drive shaft. So, barely on the passenger side of the centerline of the car. The drain hole is on the side of the transfer case, facing the same direction as the transmission drain bolt but a bit further toward the back of the car (maybe 6 inches?). IIRC, both are 3/8" drive. You should have a variety of 3/8" extensions to be able to remove the fill plug.