PDA

View Full Version : Any interest in a write up on changing the 1.8T coilpack harness?

ncttrnl
03-07-2007, 10:27 AM
My coilpack wires are cracking and my car uses the same ignition wiring harness as a Mk4 GTI.

There is already a TSB with the procedure floating around out there but if there is interest on here I might pull out the camera while I do mine. If no one on here is looking at doing this repair, I'm just going to leave well enough alone and let people go off the TSB.
Monster8V
03-07-2007, 10:29 AM
I just replaced mine on the Beetle last fall.
Wouldnt hurt to do a shoot to document how esy it is. id say do it!
RavinJetta
03-07-2007, 10:40 AM
Is this the same procedure?
http://forums.vwvortex.com/zerothread?id=2964360
ncttrnl
03-07-2007, 11:53 AM
No... I'm talking about actually changing the wiring harness going to the packs.

There is a 40 dollar replacement harness with beefed up wires and a 50 dollar heat shield you can get to protect it.
Agent Orange
03-07-2007, 11:56 AM
I've done it, but I've seen it needed enough I think a write up would be good for this. Let people know its really not that bad
RavinJetta
03-07-2007, 11:59 AM
Oh ok then go for it. I love reading all type of technical write ups. Maybe Scott can help you with it :ha:
badbidet
03-12-2007, 03:29 PM
I hear the wires get hot and cause shorts and engine misfires and what not. I think I would spend the extra money when I have to replace min as well and get that TT225 heatshield.
tpotp
03-12-2007, 03:45 PM
i've got some interest, and would definitely use your write up
do it :tup:
ncttrnl
03-12-2007, 11:02 PM
I hear the wires get hot and cause shorts and engine misfires and what not. I think I would spend the extra money when I have to replace min as well and get that TT225 heatshield.

Thats what I did... thats the 50 dollar heat shield I mentioned
badbidet
03-14-2007, 11:26 PM
IS that $40 harness oem or something? I would think the 225 might have bigger wires?
ncttrnl
03-15-2007, 09:48 AM
IS that $40 harness oem or something? I would think the 225 might have bigger wires?

The harness was ~$40 and is OEM for an AWP engine (not 225)

The heatshield was ~$50 and is OEM for one or both of the 225 engine codes.

As for wire size between a 225 and 180...

They are not different and they wouldn't need to be. The new harness is a bit beefier than the original harness on the car because of the issues people were having.

The only significant differences between the 180 and 225 are:

turbo (k03s vs k04)
SMIC (1 vs 2)
rods (cast vs forged)
oil squirters (225 has them)
after-run coolant pump (225 has one)
exhaust (225 is bigger overall)
transmission (5sp vs 6sp)


All the other differences are mainly due to different routing because of a different intake and exhaust tract.

The 225, because it was a factory tuned 1.8T got a few little extras like heat shields and rubber boots on some of the electrical connectors that other models didn't get. A bunch of those little pieces can be used on any 1.8T.
badbidet
03-15-2007, 07:15 PM
good to know. Basically I wish the GTI had the 225 components. I have seen yours at the meet. If I remember correctly, the 180hp has single exhaust?
ncttrnl
03-15-2007, 08:05 PM
good to know. Basically I wish the GTI had the 225 components. I have seen yours at the meet. If I remember correctly, the 180hp has single exhaust?

Yup... I have a 180.

The single exhast is usually a dead giveaway that its a 180. On a FWD its a pain in the ass to do a dual exhaust. The 180 Quattro guys have an easier time of it but they have to buy a new rear valence so they usually stick with a single tip.