All Things Mk5 > Performance Modifications

Intake Manifold Flap Motor v157

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SeyiiOluwa:
Hey guys, I'm kind of new to this, and  I've searched a few places but haven't been able to find a Mk5 forum with knowledgeable people like on here.

So I bought my Mk5 (TDi please don't shoot me :innocent:) in October and the emissions light has been on ever since. Whenever I plug it in it says

P3101 : motor for intake flap
V157 : open or short to ground

Been to VW and they quoted just under £700 to fix, another local garage near uni said they'd do the same job for just under £400. My local mechanic had a look and said that my throttle body is new so shouldn't need replacing (i'm guessing this fault has something to do with the throttle body). I've booked an appointment to see him so he can clean my intake manifold (and delete my EGR) as he claims this will clear the fault.

Since i've had the car I haven't had any power issues (but that may be because I don't know what the car is supposed to feel like). Am I making the right decision by going to clean the manifold or will that be another waste of time (and money). If I need to spend the extra money then I'd rather not go get the manifold clean.

Sorry if its already been covered in a previous topic

Vagperformance:
There's a fuse that pops when that unit goes faulty, it's in the engine bay on the n/s of the vehicle

SeyiiOluwa:

--- Quote from: Vagperformance on June 08, 2015, 09:21:14 pm ---There's a fuse that pops when that unit goes faulty, it's in the engine bay on the n/s of the vehicle

--- End quote ---

Do you know which one it is? I can check my handbook. Been to the garage again today and they reconfirmed that the throttle body was fine. Hopefully you're right

Vagperformance:
I honestly can't remember, got a feeling it's a 10amp fuse. If you have the ignition off just pull the fuses individually, you'll see if it's blown or not.


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AIR_CHILLED:

--- Quote from: SeyiiOluwa on June 07, 2015, 11:17:00 am ---Hey guys, I'm kind of new to this, and  I've searched a few places but haven't been able to find a Mk5 forum with knowledgeable people like on here.

So I bought my Mk5 (TDi please don't shoot me :innocent:) in October and the emissions light has been on ever since. Whenever I plug it in it says

P3101 : motor for intake flap
V157 : open or short to ground

Been to VW and they quoted just under £700 to fix, another local garage near uni said they'd do the same job for just under £400. My local mechanic had a look and said that my throttle body is new so shouldn't need replacing (i'm guessing this fault has something to do with the throttle body). I've booked an appointment to see him so he can clean my intake manifold (and delete my EGR) as he claims this will clear the fault.

Since i've had the car I haven't had any power issues (but that may be because I don't know what the car is supposed to feel like). Am I making the right decision by going to clean the manifold or will that be another waste of time (and money). If I need to spend the extra money then I'd rather not go get the manifold clean.

Sorry if its already been covered in a previous topic

--- End quote ---
Hello,
I have recently changed this  flap control valve on my diesel ('54 A3 2.0TDI Sport)
The throttle body / intake flap is there to control emissions when engine is warm and at idle e.g sitting in traffic. It's main function though is a anti-shudder valve and is used to stop airflow when engine is switched off to promote a smoother stop.
The two main causes why it is blowing the fuse is if the plastic gears have stripped or the electronics fail. (Mine filled with oil through the worn sealing bush on the spindle)
I bought the valve from Eurocarparts for £100 with promotional discount and the seals from Audi.
While I was at it I cleaned the EGR valve, fitted a EGR OEM restrictor gasket from an Audi 80 and changed the intercooler seals.

Quoted £700 is a joke and £400 pounds is also laughable. The OEM part that Audi sell for £250+ Eurocarparts sell (Pitsburgh or something)
Easy Diy If you handy with the spanners.
Hope this helps.
Cheers,
Mike.

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