E36 Secondary Air Pump: New or Used?

Michael Czeiszperger · **Joined:** Thu Apr 09, 2009 9:35 am **Posts:** 861

The secondary air pump went bad on my '98 M3, and a new one is $199. Is this one of those things where an $80 used one would work fine, or is it work it to spend the extra cash for a new one?

Thanks!

Chuck Branscomb · **Posted:** Sun Nov 03, 2013 8:06 pm

What's the part number? Pop it into BMW Morristown's online parts sale site: http://www.trademotion.com/partlocator/index.cfm?siteid=214320 They have about the best prices in the country for OEM parts through BMW. It will show you the MSRP along with their discounted price.

RodneyWright · **Posted:** Mon Nov 04, 2013 9:40 am

Michael Czeiszperger wrote:

The secondary air pump went bad on my '98 M3, and a new one is $199. Is this one of those things where an $80 used one would work fine, or is it work it to spend the extra cash for a new one?

Thanks!

I'd go used, but you'll need to by the check valve that mounts to the engine block. That's what destroys the pump in the first place by letting hot moist air back into the pump when it's not needed. Ask me how I know....

MarekRozanski · **Posted:** Mon Nov 04, 2013 10:47 am

Michael Czeiszperger wrote:

The secondary air pump went bad on my '98 M3, and a new one is $199. Is this one of those things where an $80 used one would work fine, or is it work it to spend the extra cash for a new one?

What symptoms are you seeing? Mine went bad years ago (also '98 M3). It makes a loud vacuum-cleaner like sound for about a minute after the car starts on cold days. Some mechanic told me it's not urgent to replace it, so I haven't done it yet.

Michael Czeiszperger · **Joined:** Thu Apr 09, 2009 9:35 am **Posts:** 861

MarekRozanski wrote:

Michael Czeiszperger wrote:

The secondary air pump went bad on my '98 M3, and a new one is $199. Is this one of those things where an $80 used one would work fine, or is it work it to spend the extra cash for a new one?

What symptoms are you seeing? Mine went bad years ago (also '98 M3). It makes a loud vacuum-cleaner like sound for about a minute after the car starts on cold days. Some mechanic told me it's not urgent to replace it, so I haven't done it yet.

Yup, that's exactly what its doing. I also read it wasn't urgent, but like to keep my daily driver "clean" just so repairs don't pile up.

BretLuter · **Posted:** Mon Nov 04, 2013 9:23 pm

I have a good used one if you need it.

$100

:mrgreen:

Michael Czeiszperger · **Joined:** Thu Apr 09, 2009 9:35 am **Posts:** 861

RodneyWright wrote:

Michael Czeiszperger wrote:

The secondary air pump went bad on my '98 M3, and a new one is $199. Is this one of those things where an $80 used one would work fine, or is it work it to spend the extra cash for a new one?

Thanks!

I'd go used, but you'll need to by the check valve that mounts to the engine block. That's what destroys the pump in the first place by letting hot moist air back into the pump when it's not needed. Ask me how I know....

I've done a search for a "check valve" but there seems to be a bunch of them. Any idea which one is supposed to be paired with the secondary air pump?

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E36 Secondary Air Pump: New or Used?

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