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Hey viewers, this is E36 Fanatics and today I'm gonna do a job on my BMW E36 323i
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I'm gonna just change the differential fluid, which is right under here
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It's pretty easy to do pretty quick, but it can extend the life of your differential quite a bit
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and make it last longer. So I'm gonna show you how to do that
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Okay, so this is a pretty straightforward job, but there is an issue or two with doing this
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So the first and biggest issue is, so you go to the store
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oh, one second. So you go to the store and pick up your socket
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which is a 14 millimeter hex socket, hex socket to fit both of these and you go back to the car and you try it out on the bolts
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and then you put it on the top one and turns out there's not enough room there's not
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enough room at all to even get a swivel up here because this is blocking it so
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what you have to do what I did is I is I take the 14 inch hex
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Of course this is only if you can find a short one Some of the stores you can order the short 14 millimeter hex socket from them But most of them you can or it going to take a few days
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and I don't have time to sit around and wait for a short hex to come in
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So what I did is I just took a 14 millimeter monkey
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Just took a 14 millimeter monkey wrench. and just put it on the end of this of the socket and fit it in as far as I could
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and turned it and you can see it's coming loose now so first thing you do with
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changing the fluid is you want to actually change oh you want to open up the fill
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first which is the top one this is because you want to make sure that you can get
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this one open before you open the open the empty one, the release bolt
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This is the release one right here. And also because you let some of the air out of the system
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when you open this up that's been sitting in there and you want to do that before you release everything
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So I've already gotten this loosened. I'm going to go ahead and get my pan prepared
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It's just a regular black pan that I use for oil. and then I'll go ahead and release the old differential fluid
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Okay so like I said I doing the same thing with this bottom bolt I got the hex the socket on and I just put the monkey wrench in it in turn
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And you got to put a lot of force on this because it's torque pretty high
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And my monkey wrench isn't that tough in the first place. But it worked for both of these two sock bolts
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And here's the first one. And as you can see, it's a short little stubby bolt, but it's torqued really, it's torqued pretty good
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So, got this loose. I got my pan about to release it and then it's going to dump out oil
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Okay, so at the moment it's still pouring out differential fluid, but here you can kind of, you can see the difference between the new and the old
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Here's the older stuff, and it's turned kind of a murky brown color
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Then here's the new stuff, and it's like a light yellow color
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It's almost clear, really. And before I bought this stuff, I talked to a couple of people about what was the best, really, for BMW E36s
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and I actually called the German dealership, BMW dealership. And it seems like they recommend 75W
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40 now. They used to in previous years recommend 75W90, but they recommend 140 currently
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And it supposed to be really good stuff A lot of people like using Royal Purple as the brand or red label I think it called but red line But I just got mobile one It a little bit cheaper
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Okay, so what I've been using for this is I bought a little pump from Harbor Freight
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And basically it was like five bucks and it's got two hoses and you just pump it
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And so one side you use to pump from the gear fluid
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And then the other side you use it to pump into the top hole right here
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Now, of course, you leave this top hole open when you're filling it and close, go ahead and seal this one
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And you just pump it. And basically you, it measures out to be about 1.8 quarts
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but usually you spill a little bit. So what I usually do is you just fill it until it starts dribbling out
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and that'll be 1.8 quarts basically, just about 1.8 quarts or a little more
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but it's just around there. So what I do is I just wait until it starts dribbling out
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and then you've hit the magic number of about 1.8. And then you just seal, close this up real quick at the top
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and go ahead and tighten it up and you're done here. real quick job and makes your differential last much longer than it would otherwise if you didn't
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replace your differential fluid. I hope y'all enjoyed this video. If you did, please like, comment
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and subscribe. And thank you. Y'all have a good one
