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TDI V157: Is it really dead?

 
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dieselmartin
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Post07-09-2010, 11:13    Subject: TDI V157: Is it really dead? Quote

Hi.

Have I understood correctly that the swirl flaps (V157) are installed in the CAYx engine but not activated?

Are they stocked up for EU6, or did you just happen to have some on hand?

Can someone take a picture of the intake manifold?

Thank you.
Martin.
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... there was another T.

I don't know what the f*ck it was.


Translated on 07-08-2026, 5:11.
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vwSchrauber
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Post10-09-2010, 13:43    Subject: TDI V157: Is it really dead? Quote

Hi,

Yes, I once took some photos of a CAY, and I think I saw something similar there as well. I'll try to find them for you icon_wink.gif.
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Translated on 07-08-2026, 5:12.
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Post10-09-2010, 14:02    Subject: TDI V157: Is it really dead? Quote

Here are the pictures...

Regarding the current clamp: I was curious whether it uses piezoelectric elements or not. The devices look structurally similar to the "old" magnetic valve injectors from Bosch.



IMG_0231.jpg
 Description:
 Injektoren CAY?
Injektoren CAY?
Download
 File name:  IMG_0231.jpg
 File size:  2.64 MB
 Downloaded:  1910 times

IMG_0229.jpg
 Description:
 Injektoren CAY?
Injektoren CAY?
Download
 File name:  IMG_0229.jpg
 File size:  2.49 MB
 Downloaded:  2026 times
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Post10-09-2010, 14:18    Subject: TDI V157: Is it really dead? Quote

Thank you.

Hmm, you can clearly see the V157 in the first picture, but it's not clear if it's connected.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


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vwSchrauber
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Post10-09-2010, 14:19    Subject: TDI V157: Is it really dead? Quote

You're asking a little too late. If I still had it in the workshop, I could have connected an oscilloscope to see if it's being powered on correctly.
selber schrauben - statt Werkstattpfusch


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Post10-09-2010, 14:25    Subject: TDI V157: Is it really dead? Quote

Yes, it's definitely connected, at least electrically. I can't tell you about the SW connection; I don't know yet how to access that on this Conti system...

I have marked the plug in the picture for you icon_wink.gif.



IMG_0231_m.jpg
 Description:
 CAY? Motor, V157 nicht angeschlossen
CAY? Motor, V157 nicht angeschlossen
Download
 File name:  IMG_0231_m.jpg
 File size:  1.21 MB
 Downloaded:  1835 times
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Post10-09-2010, 14:43    Subject: TDI V157: Is it really dead? Quote

I still can't recognize the connector (it's my first time seeing a CAY).
Okay, well, it's possible that it's not being targeted.

The control signal could be seen in the diagnostic data.
At least, I can see my on/off swirl flaps there.

Unfortunately, the *.CLB files are not easily readable.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 07-08-2026, 5:15.
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Roger
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Post10-09-2010, 14:51    Subject: TDI V157: Is it really dead? Quote

According to SSP 442, page 14, the motor V157 and potentiometer G336 are currently non-functional and not integrated into the self-diagnostic system.
Gruß
Roger

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//images.spritmonitor.de/880099.png


Translated on 07-08-2026, 5:16.
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Post10-09-2010, 16:12    Subject: TDI V157: Is it really dead? Quote

One should also read some sentences to the end icon_redface.gif.
Transparency, Teamwork
... there was another T.

I don't know what the f*ck it was.


Translated on 07-08-2026, 5:16.
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Post10-09-2010, 19:02    Subject: TDI V157: Is it really dead? Quote

Here are a few more pictures of CAY.



IMG_2802.jpg
 Description:
 CAY Motor
 File size:  98.13 KB
 Viewed:  8205 times

IMG_2802.jpg


IMG_2801.jpg
 Description:
 CAY Motor
 File size:  100.39 KB
 Viewed:  8122 times

IMG_2801.jpg


IMG_2800.jpg
 Description:
 CAY Motor
 File size:  108.28 KB
 Viewed:  8001 times

IMG_2800.jpg


IMG_2799.jpg
 Description:
 CAY Motor
 File size:  113.86 KB
 Viewed:  8011 times

IMG_2799.jpg


IMG_2798.jpg
 Description:
 CAY Motor
 File size:  124.51 KB
 Viewed:  8018 times

IMG_2798.jpg


IMG_2797.jpg
 Description:
 TDI V157: Is it really dead?
 File size:  111.78 KB
 Viewed:  8830 times

IMG_2797.jpg


IMG_2796.jpg
 Description:
 CAY Motor
 File size:  120.51 KB
 Viewed:  7825 times

IMG_2796.jpg


IMG_2795.jpg
 Description:
 CAY Motor
 File size:  112.98 KB
 Viewed:  9319 times

IMG_2795.jpg


IMG_2794.jpg
 Description:
 CAY Motor
 File size:  112.35 KB
 Viewed:  9606 times

IMG_2794.jpg


IMG_2793.jpg
 Description:
 CAY Motor
 File size:  124.41 KB
 Viewed:  13938 times

IMG_2793.jpg



Translated on 07-08-2026, 5:17.
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Post10-09-2010, 19:37    Subject: TDI V157: Is it really dead? Quote

Oh, changing the valve cover gasket there is definitely going to be a lot of fun. icon_twisted.gif

Sorry for the off-topic comment. icon_wink.gif
MfG. Michael

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Post11-09-2010, 10:51    Subject: TDI V157: Is it really dead? Quote

Why would you need to replace the valve cover gasket? The timing belt is changed every 300,000 km (as far as I know), and the valve cover doesn't necessarily have to be removed at the same time.

Besides that: a valve cover gasket on a VW doesn't usually leak icon_twisted.gif icon_lol.gif.
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Translated on 07-08-2026, 5:18.
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Post11-09-2010, 14:09    Subject: TDI V157: Is it really dead? Quote

Timing belt replacement every 180,000 km.


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Post11-09-2010, 18:03    Subject: TDI V157: Is it really dead? Quote

Okay, I seem to have been mistaken – but surely there hasn't been a CR-TDI engine with a 300,000 km service interval for very long?
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Post11-09-2010, 20:23    Subject: TDI V157: Is it really dead? Quote

vwSchrauber wrote:
Okay, then I was mistaken about that - but isn't there a certain CR-TDI model that has only been around recently, which has a 300,000 km service interval?


Our 1.6 CR TDI engine in the Octavia 4x4 with 105 horsepower... I don't recall the engine code right now.


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Post11-09-2010, 21:42    Subject: TDI V157: Is it really dead? Quote

I can't find a Skoda Octavia 4x4 with a 1.6 engine; I only find the CAYC version with two-wheel drive and a 210,000 km service interval.
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