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VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old November 27th, 2012, 07:48   #1
TDI Convert
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Default Someone swiss chessed my air box, bad?

I opened up my air box after purchasing my Jetta TDI (Mistake # 1) and found this:






My filter was dirty but not awful. I plan to replace this with an unmolested lower air box piece. I tried to find the part # on 1stvwparts.com but no 1.9TDI part # listed. I already put my airbox back in the car so I will have to remove it again to check for a part # on lower half. Anybody know off the top of their head ?

Is this a mod for these engines or was someone drilling holes where they shouldn't be?
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Old November 27th, 2012, 07:57   #2
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That's not very smart; they defeated the cold-air intake from the front of the grille. It's not the end of the world but I'd find a new lower piece and replace it.
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Old November 27th, 2012, 08:02   #3
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Dilusional redneck with a hole saw attacked the airbox with a misguided concept of a cold air intake.

Probably no harm in running it as is, especially with cool outside temps. In the summer, you really want the engine breathing the (relatively) cool air through the snorkle leading out front of the motor area.

I'd just try to find one in a junkyard. Every dead car probably has one in good shape.
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Old November 27th, 2012, 08:06   #4
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Thanks for the fast replies. Is the gasser airbox the same as TDI airbox? or different?

My local pull your own parts only has 1 Jetta and its a gasser.
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Old November 27th, 2012, 08:10   #5
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that part of the gasser airbox is the same. there might be a different snorkle in there, it may look slightly different, but the halves will fit together, and at least it will be solid.
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Old November 27th, 2012, 13:50   #6
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Air boxes are identical on the 2.0 and 1.9 Beetle. I have both, the snorkel is the same
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Old November 27th, 2012, 16:06   #7
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Swiss Chess-ed, you say?
Count your self lucky it wasn't Chinese Checker-ed!
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Old November 27th, 2012, 16:29   #8
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I've seen people do this for the sound, it gives more tubro sound.
If it were me I'd probably use some tape or something and be done with it
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Old November 28th, 2012, 03:42   #9
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How much more sound? Any other adverse effects other than just pulling warmer air into the system?
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Old November 28th, 2012, 04:20   #10
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maybe more of a chance for water/moisture to get up into the filter? like if you ever pressure wash the engine bay and don't take the airbox out... i would either just tape it with some gorilla tape or buy a new airbox bottom..

it is certainly doing absolutely nothing to help anything other than look retarded
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Old November 28th, 2012, 05:00   #11
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Quote:
Originally Posted by burpod View Post

it is certainly doing absolutely nothing to help anything other than look retarded
This says it all.
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Old November 28th, 2012, 07:48   #12
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Quote:
Originally Posted by burpod View Post

it is certainly doing absolutely nothing to help anything other than look retarded
And yet there are those who still want to do it. They probably put a coffee can on the tip of their exhaust, too. Go figure.
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Old November 28th, 2012, 07:56   #13
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I've got a stock air-box in the barn. (from my old 2000 Jetta)

it's yours for the price of shipping.

PM me if you need it.
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Old November 28th, 2012, 08:44   #14
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Quote:
Originally Posted by btcost View Post
I've got a stock air-box in the barn. (from my old 2000 Jetta)
it's yours for the price of shipping.
PM me if you need it.
PM sent. You the man. Love TDIclub.com

Also, one I have receive the unmolested airbox and installed it. I will pay it forward and the above pictured bottom half will be passed on for free plus shipping to those who wish to find out what it sounds like.
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Last edited by TDI Convert; November 28th, 2012 at 08:58.
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Old November 30th, 2012, 02:31   #15
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Quote:
Originally Posted by romad View Post
And yet there are those who still want to do it. They probably put a coffee can on the tip of their exhaust, too. Go figure.

Just a Honda owner, kids love the sound of a tuned one.
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