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How to Replace Secondary Air Injection Pump Mounts 01-05 BMW 325Xi

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  1. step : Removing the Secondary Air Injection Pump (0:30)
    • Loosen the worm clamp connecting the hose to the secondary air pump
    • Remove the hose, using a pick to loosen it if necessary
    • Remove the three 10 mm bolts securing the air pump
    • Lift out the air pump
    • Disconnect the electrical connector from the air pump
  2. step : Removing the Secondary Air Injection Pump Mounts (1:40)
    • Remove the Phillips head screw securing the shield to the pump assembly
    • Remove the three 10 mm nuts securing the pump mounting bracket
    • Mark the bracket and the pump to be able to replace the bracket in the correct orientation
    • Remove the bracket
    • Remove the pump mounts using a 17 mm wrench to loosen them
  3. step : Installing the Secondary Air Injection Pump Mounts (4:14)
    • Install the three pump mounts and tighten them with a 17 mm wrench
    • Reinstall the pump bracket, using the mark to align it correctly
    • Reinstall the three 10 mm nuts securing the bracket
    • Reinstall the shield and secure it with the Phillips screw
  4. step : Installing the Secondary Air Injection Pump (5:32)
    • Reconnect the electrical connector to to the air pump
    • Position the air pump bracket to align the bolt holes
    • Reinstall the three 10 mm bolts securing the pump
    • Reconnect the air hose to the pump
    • Tighten the worm clamp on the air hose

What's up, guys? I'm Andy from 1A Auto. In this video, I'm going to show you how to replace the secondary air injection pump rubber mounts that we sell at for this 2001 BMW 325Xi. If you need these parts or other parts for your vehicle, click the link in the description and head over to

The mount is broken for the secondary air injection pump, so it rattles around right there. I'm going to show you how to change that. Take a straight-blade screwdriver and loosen up this worm clamp right here. That loose, slide it off. We can try to pry this hose out. Just going to use a pick, just slide it in there, just release this hose. Just go all around, grab the hose and slide it off.

Then there's a bolt, right here. There should be one right there, there isn't one. And then there's another bolt on this side right here. I'm going to take those out. I'm going to use a 10mm socket extension and a ratchet. Pull those bolts out. I can grab this, disconnect the electrical connector on the bottom. Just push on the two tabs, slide it out.

So I want to take this shield off next. Just use a Phillips-head screwdriver, take this screw out. We can just slide this shield out, just like that, set it aside. Then we want to take these three nuts out right here. Just use that 10mm socket extension and a ratchet. I took those two nuts off. Then, the last nut is right there. I'm just going to hold, hold this with some pliers while I take that last nut off.

I'm just going to try to loosen this first. All right. Now that it's a little bit loose, there's not much to grab onto right here. You could probably use a wrench or pliers. The locking pliers might help. Yeah, I just used some locking pliers, locked onto that, that made it easier. Now I can take it off. All right. Got that one off.

Keep in mind, you want to kind of make a mental note of how this came off of this: This broken one was right here, this came off like that, so you could actually mark it. Just take a little marker, mark on here and mark on the case of the pump, do that. We want to take these off the pump. I can use a 17mm wrench, just slide this on here, loosen these up. It's in plastic, so... Well, I guess there is metal underneath there. You just slide this one up, loosen that up. This just unscrews just like that. Here's the old part, here's the new part from Has the same studs, has the same configuration, although this one is not worn, like this one. After a while, they dry out and the rubber gets stiff. This one is not, it's nice. Get yours at and you can do it yourself.

Now I'll just take the new rubber mount. It doesn't matter which way they go, just get that started. Take a 17mm wrench and just snug it up. You don't have to tighten it too tight. And that's about as far as that's going to go. Do the same with the other ones. Now those are all in. Now we can take this bracket, slide that in position. Take the bolts, the nuts, get the nuts started. My 10mm socket extension and a ratchet tighten these down. Now that bracket's on, now we can put the shield back on. Just sliding this little tab up, like that.

Take this Phillips-head screw, and use a screwdriver and you just tighten this down. Just snug that, that's good. Now we can install it in the vehicle. Take the connector, plug that in, just like that. And you can line up the bracket. Take the bolt, get the bolt lined up. It's a little tricky to get this bolt lined in.

We'll want to put this bolt in first. Put this bolt in, and then, if you have that other bolt, put that one on. Take the 10mm socket extension and ratchet, tighten this down, snug. Snug that one down. Take this hose, get the hose clamp lined up. Slide this back in position, and you can tighten this down. Just use the straight-blade screwdriver. If your clamp is sticking, you can spray a little rust penetrant in there. That's all I did and now I was able to tighten it down, and that seems good. Now the mounts are in. It's good. The pump's nice and tight. Good to go.

Thanks for watching. If you want the parts to do it yourself, check out, the place for DIY auto repair.

Tools needed for replacement:

    General Tools

  • Pick

  • Materials, Fluids, and Supplies

  • Marker / Writing Utensil

  • Pliers, Cutters & misc Wrenches

  • Locking Pliers

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Phillips Head Screwdriver

  • Sockets - Metric

  • 10mm Socket

  • Wrenches - Metric

  • 17mm Wrench

1999 - 2000  BMW  323i
2000 - 2000  BMW  323Ci
2001 - 2005  BMW  325Xi
2000 - 2000  BMW  328Ci
1994 - 2003  BMW  530i
2001 - 2003  BMW  525i
2001 - 2005  BMW  330Xi
1999 - 2000  BMW  328i
1995 - 2001  BMW  750iL
1996 - 2001  BMW  740iL
1997 - 2001  BMW  740i
1997 - 2003  BMW  540i
2000 - 2003  BMW  M5
2000 - 2006  BMW  X5
1993 - 1997  BMW  850Ci
1997 - 1998  BMW  Z3
1999 - 2000  BMW  Z3
2001 - 2002  BMW  Z3

94-06 BMW 3, 5, 7, 8, M, X, Z Class Secondary Air Injection Pump Rubber Mount (SET of 3)

BMW Secondary Air Injection Pump Rubber Mount 3 Piece Set DIY Solutions

This part replaces:

  • DIY Solutions ESS00143

Part Details

  • Quantity: 3 Piece Set
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