Hello friends!
I'm new to this forum. I don't actually have a BMW X5, but my friend has a 02' E53 X5 3.0i while my truck, a 03' Range Rover HSE, is powered by a BMW M62 4.4 engine, so it makes perfect sense for me to join bimmerforums!
My friend's 12-year-old X5 has clocked 210 K miles and is suffering from numerous problems, aesthetically, functionally and mechanically. We know that we shouldn't expect too much from a 12-year-old, but we want to try solving some of the problems, starting from the most severe ones, and the one that sets the Check Engine Light on will be where we start.
I'm now having P0491 and P0492 codes: secondary air injection system insufficient flow bank 1, 2, respectively. I went through some of the inspection procedures, and found out that AT LEAST the air pump had been defective, so if we decide to fix it (if other problems causing these codes are easy and cheap to fix), we need a pump anyway.
I did a quick search and result shows that our 2002 E53 3.0i has an 11 72 1 437 911 air pump made by Pierburg (they makes the fuel pump assembly on my Range Rover and presumably on BMWs, too). The lowest price I found on internet for this particular pump is $285, Pierburg OEM, on Bavarian Autosport. But I also found air pumps for other E53's such as 4.4i or for other M54-powered cars that are significantly cheaper or are having aftermarket or remanufactured counterparts, such as this 11 72 7 571 589, for use on 03'-06' X5 3.0i, or this 11 72 1 437 910 for use on the same generation X5 4.4i, or this re-man one: http://ift.tt/1JP2lBO
I'm curious about how these pumps differ structurally and functionally. To me at least they look similar or even identical. Do they have different connectors? Or they are designed to blow at different flow rates? In short, are they interchangeable so that I can have a lower-cost fix on my E53 3.0i by using a slightly different pump?
Any help is appreciated. Thank you!
Happy Monday!
I'm new to this forum. I don't actually have a BMW X5, but my friend has a 02' E53 X5 3.0i while my truck, a 03' Range Rover HSE, is powered by a BMW M62 4.4 engine, so it makes perfect sense for me to join bimmerforums!
My friend's 12-year-old X5 has clocked 210 K miles and is suffering from numerous problems, aesthetically, functionally and mechanically. We know that we shouldn't expect too much from a 12-year-old, but we want to try solving some of the problems, starting from the most severe ones, and the one that sets the Check Engine Light on will be where we start.
I'm now having P0491 and P0492 codes: secondary air injection system insufficient flow bank 1, 2, respectively. I went through some of the inspection procedures, and found out that AT LEAST the air pump had been defective, so if we decide to fix it (if other problems causing these codes are easy and cheap to fix), we need a pump anyway.
I did a quick search and result shows that our 2002 E53 3.0i has an 11 72 1 437 911 air pump made by Pierburg (they makes the fuel pump assembly on my Range Rover and presumably on BMWs, too). The lowest price I found on internet for this particular pump is $285, Pierburg OEM, on Bavarian Autosport. But I also found air pumps for other E53's such as 4.4i or for other M54-powered cars that are significantly cheaper or are having aftermarket or remanufactured counterparts, such as this 11 72 7 571 589, for use on 03'-06' X5 3.0i, or this 11 72 1 437 910 for use on the same generation X5 4.4i, or this re-man one: http://ift.tt/1JP2lBO
I'm curious about how these pumps differ structurally and functionally. To me at least they look similar or even identical. Do they have different connectors? Or they are designed to blow at different flow rates? In short, are they interchangeable so that I can have a lower-cost fix on my E53 3.0i by using a slightly different pump?
Any help is appreciated. Thank you!
Happy Monday!
Differences among secondary air injection pumps?
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