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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-03-2013, 04:48 PM
kinanks kinanks is offline
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Mein Auto: BMW 528I 1998
Air pump hose

Hello members,
my BMW 528i 1998 failed smog because what they called a bad air pump hose.
I attached a picture of the bad hose. I found one on ebay part#: 11721427912

http://www.ebay.com/itm/NEW-BMW-Air-...d7a7e2&vxp=mtr

Is that the right part? if not what is it?
Also, is that the right name for the part?

Many thanks in advanced.
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  #2  
Old 01-03-2013, 04:58 PM
cn90 cn90 is offline
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Mein Auto: 1998 528i 5-sp 140K+
Go to local autoparts store and buy a generic heater hose for $3.
Measure the internal diameter first.
For the other side, you need to remove the RF wheel (use jack stand!), then access the air pump connection from below.
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Old 01-03-2013, 05:55 PM
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diggyd357 diggyd357 is online now
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Do NOT JUST GO BUY HEATER HOSE !!!! It will not be able to make the bends needed to route the hose where it need to go. It will kink in 2 or 3 different spots I PROMISE you. Buy the correct hose...it comes pre shaped to fit around the bends it needs to make. Trust me ... I went through this already....
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Old 01-03-2013, 05:56 PM
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diggyd357 diggyd357 is online now
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And YES...that's the correct hose
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Old 01-03-2013, 09:15 PM
kinanks kinanks is offline
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Thank you so much for the help
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  #6  
Old 01-04-2013, 04:32 AM
Chisum Chisum is offline
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Mein Auto: 2003 525i 2002 525iT 5sp
Clean your engine bay.

Chisum
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Old 01-04-2013, 05:52 AM
cn90 cn90 is offline
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Actually the heater hose works fine because the bend is not that bad. It will kink a tiny bit but zero issues. Just make sure that it bends properly.
Plus this is a non-sense SAS system, so who cares. Spenidng some $35-$40 for this piece of BS is a waste of money.

In my Volvo I deleted the SAS system already with a diode.

Anyway, the lower end photo is here:


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Old 01-04-2013, 06:07 AM
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diggyd357 diggyd357 is online now
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Do what you want....but when you bend that heater hose in 3 different 90 degree bends and it crimps off in all 3 points don't say I didn't warn ya. To me spending $30 to get the correct oem replacement is well worth it for piece of mind that you fixed the problem and fixed it correctly. Im all for saving money , hell I tried the heater hose thing, but it's not saving money when you end up having to buy the oem hose after you've already bought the heater hose. This is just my opinion based on a recent experience . take it for what it's worth.....good luck !
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Old 01-04-2013, 06:55 AM
cn90 cn90 is offline
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Look,

I have tried the heater hose and it works fine.

O.P., look at your original photo, the quickest fix is to slice the bad part and re-connect the hose to pass emission.
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Old 01-04-2013, 07:26 AM
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BentValve BentValve is offline
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Quote:
Originally Posted by cn90 View Post
Go to local autoparts store and buy a generic heater hose for $3.
Measure the internal diameter first.
For the other side, you need to remove the RF wheel (use jack stand!), then access the air pump connection from below.
You don't necessarily need to remove the wheel, turning it all the way to the left will gain enough access to the SAP....assuming you don't have 20+ inch wheels.

Quote:
Originally Posted by diggyd357 View Post
Do NOT JUST GO BUY HEATER HOSE !!!! It will not be able to make the bends needed to route the hose where it need to go. It will kink in 2 or 3 different spots I PROMISE you. Buy the correct hose...it comes pre shaped to fit around the bends it needs to make. Trust me ... I went through this already....
He's right actually. A heater hose will work just fine.
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