The Random E46/ZHP Question Thread

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Originally Posted by az3579

If you haven't replaced your fuel pump yet at this mileage, then I would recommend you buy one and at least keep it in the car. You can replace it roadside with basic tools. Also buy the gasket as well.

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Love that story, BTW. Pretty sure that besides putting on new wipers, a FP is the easiest maint item on these cars.

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Originally Posted by Karl Lazlo

Love that story, BTW. Pretty sure that besides putting on new wipers, a FP is the easiest maint item on these cars.

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I can think of some easier things... The cabin air filter, for example!
And the SAP hoses, those are easy too. No tools required. :)

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Originally Posted by az3579

And the SAP hoses, those are easy too. No tools required. :)

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What about the vacuum line to the SAP valve that goes towards the firewall? I haven't looked hard at it, but the valve end is crumbling.

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Originally Posted by John in VA

What about the vacuum line to the SAP valve that goes towards the firewall? I haven't looked hard at it, but the valve end is crumbling.

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Not sure which one you're referring to... got a pic?

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Originally Posted by az3579

Not sure which one you're referring to... got a pic?

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This is not my photo, but the hose runs from the valve along the passenger's side of the valve cover towards the firewall. The ETK makes you believe it's a short length of vacuum hose - not sure how easy to replace - might need a mirror to see it! If the front/visible portion is crumbling I can't imagine what the back section looks like!

Attachment 34674


#4 in the diagram:
Attachment 34676

The zhp doesn't have that vacuum line.

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I was going to say, I don't remember seeing that line when I eliminated the SAP and valve

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Originally Posted by Vas

The zhp doesn't have that vacuum line.

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Good to know! This is on the 2000 328i.

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Originally Posted by 3ZHPGUY

A PM question!

Anyone had a fuel pump of fuel filter failure that left you stranded?

I’m at about 175K with the originals and may want to take a long road trip this summer. I’m thinking this may be a good time to at least replace the filter before the drive but, don’t know the expected life on the fuel pump!


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My original fuel pump died at 150k miles while the car was in my driveway!

It shorted out and was popping fuses.

Definitely replace yours to be safe or keep a spare.

I pretty much replace parts now before they quit working and have been replacing all of the plastic crap parts with metal versions of the same part to significantly increase the reliability of this car.

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Originally Posted by Sockethead

I was going to say, I don't remember seeing that line when I eliminated the SAP and valve

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Yeah I don't recall seeing it on my ZHP and another ZHP I was working on last week either.