Running Board, the way better DIY.
 

First thing first. The running board diy that you can find on the forums currently is a joke. Second, the instructions BMW provides, are good enough to get you through the process, but there are a lot of things that the instructions do not mention. Where the extra clips go. Or how you should remove a clip from your old rear flares and install it on the new flares. Or how those of us with IS cars, we can re-use our flares on the new parts. Or how a normal rivet gun, 2 of them actually, and a air rivet gun, won't accept the plastic rivets. Yea, I figured out a way to not buy another useless tool or two.

So lets get this how to going. Print the instructions from BMW below. They will get you through the removal, and hole locations for the new parts.
BMW instructions

Next, unpack your RBs, and look up all the part numbers on RealOEM. You need to sort it all out for left and right side. Left side, is drivers side for us US people. Use the Part numbers on the boxes, and bags, not the parts. The parts have extra number sometimes.

Ok, so the instructions call for a 2mm center punch to remove the plastic rivets, and push pins from the expanding clips. That is all nice and dandy, but my punch set is all 8" long. Good luck getting something that long to punch out the pins in the wheel wells. You can take of the wheels, but that is just annoying. So, I go to my toolbox and find an old pick, where I broke off the tip. It is short and works great. Note, you can also just use a regular pick, just make sure it's short. Or, you can use a right angle pic, as you will need that anyway. You will see in pictures to come.

My broken tip pick.
https://lh3.googleusercontent.com/-8.../935136950.jpg

Center the pick tip on the pin. Then give it a solid shove. The rivet has no chance of survival.
https://lh4.googleusercontent.com/-6...1066288382.jpg

Angle pick. You need this by the rear wheels. The fronts, you can steer out of the way, but why would you want to touch your clean interior with your dirty, dirty, dirty, hands or ass. So put that angle pin in there, put your hand between the wheel and pick, and give a solid shove. Bye bye rivet.
https://lh4.googleusercontent.com/-w...1155966993.jpg

Rivet pin, pushed in.
https://lh3.googleusercontent.com/-q...1402603338.jpg

There are like 6 of these rivets in each wheel well, and about 7 or 8 under the car holding the trim on. You might have other type of clips, but I had these push-in type on one side, and ones with a hat on the other. Don't know why.

Once the bottom pins are out, open doors, and pull the bottom trim up from the bottom. You will now see this.

https://lh4.googleusercontent.com/-W...1883815170.jpg

Take out all of those lead looking bolts. 10 of them on each side. Mine were 13mm, and my Makita Impact made quick work of it. An 8" extension, will clear all, and avoid hitting the bottom of the rear door. You see it here.

https://lh4.googleusercontent.com/-M...2095017821.jpg

Your flares should now come out as well. Make sure you take out this white clip from the rear arches. You need it for your new ones.

https://lh3.googleusercontent.com/-7...2235101480.jpg

That white clip, goes under the rear door here.

https://lh4.googleusercontent.com/-d...2537714323.jpg

https://lh4.googleusercontent.com/-k...2701238282.jpg

Your X now looks like this, but mine still looks better. So there.
https://lh5.googleusercontent.com/-A...2910828936.jpg

Now, for us IS people, we want to save money, and re-use the rear flares. So remove them from your arches by pulling on the clips here. They pop out when you invert them. Fairly easy to do. You can see the flares and the arches separated in above pic.

https://lh4.googleusercontent.com/-o...2796308100.jpg

After you separate them, get some blue painters tape. Cover your arch, where the flares holes are in the blue tape. It should look like this. Don't use any pieces of tape longer than about 6". You want to overlap them, so that it will pull of in one piece. Trust me.

https://lh3.googleusercontent.com/-m...3384419461.jpg

Take a marker, or a pencil, or whatever, and trace the outline of the arch, use the side of the pencil, or marker, don't use the tip. See here. I'll explain the other marks in a bit. Use same marker or pencil to trace the holes, don't draw the vertical lines perpendicular to the holes yet.

https://lh5.googleusercontent.com/-u...3145703984.jpg

Now put back on your flare, puncturing the tape, those vertical perpendicular lines, are to mark the exact edges of the puncture. I don't know who installs these flares originally, but they did a shitty job. My method is very precise, and the tabs go through the new arches with such precision, that you barely need the retaining clips.

So, now that's done. Peel off the tape carefully, and apply to the new arches. Use the outline on the tape to line it up on the new arch. Not as hard as your head is making this out to be. Trust me.

Go get your Dremmel, or if you are an unlucky SOB, use a box cutter, the arch is soft plastic. Dremmel, with 1/8" sheetrock bit, makes quick work of the process.

https://lh5.googleusercontent.com/-V...3574677666.jpg

https://lh6.googleusercontent.com/-n...3485940807.jpg

If you are not a steady hand, test fit after each hole. But if you did the tape thing correctly, you are golden. Trust me, it will fit like a glove. If you need to adjust a bit, you have that option. The factory holes were easy 1/2" longer than necessary.

Put on flares, put on retaining clips. I added some hot glue, just because I am insane. And so that you won't be able to come to my garage and steal my flares.
https://lh3.googleusercontent.com/-5...3693057086.jpg

Now go to install it all.

Put on the aluminum RB to the body. Thread all the screws about 3 turns, trust me you want it loose. Instructions say to leave loose in the oval holes, they meant to say really loose.

Time to put on arches. Do rear first. Remember the white clip. This is not in the instructions.
https://lh3.googleusercontent.com/-U...4019760036.jpg

Insert it into the RB, then pop that white clip in. The rear arch can now be riveted in. Oh shit, no rivet gun, no worries baby. I has a plan.

https://lh6.googleusercontent.com/-L...4133482083.jpg

I have a clip puller, metal one. Also needle nose vise grip pliers. You can use regular pliers and a screw driver. But I has this fancy tool, and decided to save the effort for holding a beer.
https://lh4.googleusercontent.com/-N...4273652770.jpg

Get it. Ok I show again. Insert rivet into hole. Hold it in with clip puller or pliers , or screw driver. Just don't grip the center rod, as you need to pull that out.

https://lh5.googleusercontent.com/-L.../110326637.jpg

Attach pliers to pull rod. Like so. At this point, what you are doing it pulling the rod out, while holding the rest of the clip into the hole. Give it a good pull, some of the rod will come out, reset pliers again closer to the clip, and now pry against clip puller, clockwise in this picture, once tension is reaches, the rod will snap off. Rivet has been set.
https://lh3.googleusercontent.com/-z.../215510738.jpg

Follow above instructions, set all the rivets, and tighten the bolts on the RB.

You see this. Not in instructions.
https://lh6.googleusercontent.com/-S.../329483895.jpg

Put these into the slots for the bottom plastic RB cover. One on each side of the cover. 4 total for entire car.
https://lh3.googleusercontent.com/-9.../432117322.jpg

https://lh5.googleusercontent.com/-N.../550174812.jpg

The rest is easy. Follow instructions.

Your car should now look like this, but just a bit worse, because mine looks better no matter how much you try. :nanana:

https://lh3.googleusercontent.com/-Y.../647288452.jpg

https://lh3.googleusercontent.com/-I.../895184062.jpg

https://lh3.googleusercontent.com/-t...1400323038.jpg

Very well done and very nice garage!

Thank you, and thank you.

Xoutpost has my permission, to use this DIY. I hope this replaces that shitty ass one with the blue car on a lift.

Nice manual you put together there D! I like it looks good baby!!!

damn!!!!!!!!!!!

Haha, I love your write-up. Excellent job, the IS looks great.

For the rivets, you can still use the manual rivet guns you find at home improvement stores, you just can't use any of the metal tips they provide because they are too small. Just unscrew the tip, it works just fine without it.

A little late for you, but for anyone else that is going to do this.

Nice job SlickGT1, great write up. If you have pictures of what comes in the RB box, pls add them. This write up will definitely help others. Well done!

Was thinking of doing this but thought it won't look good on a silver x5, anyone got a picture of a silver 4.8is with those on?

Thanks all.

There is an Australia silver one with RBs. It looks great. Flows very well with the rims and color of the car.

These don't even stick out past our 20s, so like insaid in another thread, I don't know why they don't come stock on the IS. It just looks like it was supposed to be there.

I didnt take pics of the contents in the box. Had I layed it all out in the garage, it would have taken up a quarter if it. Lol.

Look at that manual link, the parts from the kit are on page two or 3.

I thought about removing tips from my rivet guns, but they still wouldn't fit in quite a few places unless you take the wheels off. And honestly, the method above was soo quick and easy, I wouldn't do it any other way. Maybe. Lol. Still excellent advise Relentlessone.

Oh since I can't edit the first post, first side too me a long time. Like 3 hours. Took a while to sort out the parts, then figure out all the tools, then the process, and it was way more humid than I anticipated. Really made me move slow.

Second side took me an hour. Thats with taking off gloves to shoot pics. I have a lot more pics, but I didn't want to overfill the thread.

Oh and use a torque wrench. 24Nm is really not much on a 2 foot torque wrench. You can go tighter by hand, but I chose to stay at 26Nm. You can see it on the blanket in on of the pics.

I'm stuck. I started following the instructions, but I have the running board kit with the leman special edition flares. the little piece that is at the rear (the one that is rounded instead of squared like the 4.8is) how do I attached that to my 3.0 rear bumper???

My flare kit didn't have any instructions.

Throw up a pic. I will check mine in the morning.