whitecar2003

Hi TL crew. Apologies for posting this in the "wrong" forum, but I've waited a week and have no responses in the Gen 5 TLX side.

So I'm looking to DIY my rear diff fluid service on my 2015 TLX and I have the fluid, hand pump, new crush washers, torque specs, etc. Only problem is that I only see a fill hole, and no drain on the back of the differential.

So does anybody know about what changed between Gen 4 and Gen 5 (TLX) on the rear dif? It also looks different than the RL's as I've researched those forums as well. Owners manual only lists one capacity (1.97 qts) so I don't think I have multiple ports to drain/fill. Just looking to find someone with insights or access to the factory service literature so I can get a few clues/diagrams so I know where to drain.

Thanks in advance!

whitecar2003

Got my answer. Cross posting here in case any of you 4th Gen folks are considering an upgrade to a new model. Enjoy!

1.Remove the filler plug (A) and the sealing washer (B).

2.Remove the drain plug (C) and the sealing washer (D), then drain the rear differential fluid.

3.Remove the metal particles from the magnetic surface of the drain plug.

4.Install the drain plug with a new sealing washer.

5.Refill the rear differential with rear differential fluid to the proper level (E).

Fluid Capacity:

1.82 L (1.92 US qt) at fluid change

2.33 L (2.46 US qt) at overhaul

Recommended fluid:
Acura All-Wheel Drive Fluid (DPSF)

6.Loosely install the filler plug with the used sealing washer.

7.Do the rear differential fluid air bleeding.


Start the engine.

Shift the transmission to P position/mode.

Wait for 1 minute.

8.Turn the engine off.

9.Remove the filler plug and the sealing washer.

10.Refill the rear differential with rear differential fluid to the proper level.

11.Install the filler plug with a new sealing washer