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Upgrades (non TDI Engine related) The place of handling, lighting and other upgrades that do not relate to the performance or economy of the TDI engine. In other words upgrades to your TDI that don't fit into TDI Fuel Economy & TDI Engine Enhancements.Please note the Performance Disclaimer

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Old February 20th, 2017, 08:56   #151
UhOh
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Quote:
Originally Posted by benchlands_tdi View Post
Completed most of the wiring, and just waiting for some harness parts to come in.

One question, on the wiring diagrams, does the "30 unswitched power" refer to the "30" or the "30A" power source?
What wiring are you referring to? I didn't see what approach you're taking.

As an update to my quest, I just picked up a complete 2000 Jetta that has only 118k miles (gasser w/bad engine): paid $400. The car is immaculate. Seats, just what I wanted- beige, cloth heated (exact same pattern), are in excellent shape. Seller (it was his daughter's car) says that the driver's seat heater wasn't working- I figure I can resolve this.

I plan on using this wire harness:

https://www.kufatec.de/shop/en/retrofits/seat-accessories/seat-heating-harness-vw-audi-seat-skoda
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Old February 20th, 2017, 11:10   #152
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Sorry for the confusion, I'm using this diagram and referring to the power sources noted near the bottom of the diagram ("30 unswitched power").


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Originally Posted by oldpoopie View Post
Ok, I think the bently diagram is confusing. Too much info for what I need. I've put together this diagram to simplify things. Let me know if I've made any errors.
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Old February 20th, 2017, 16:19   #153
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No clue what 30A means, other than 30 amps.

30 is a constant 12v power source. As the diagram mentions, it's unswitched.

-Todd
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Old February 20th, 2017, 18:22   #154
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Right. So on the power studs under the dash, there is a "30" and a "30A".


Which one should I use to draw power for the heated seats? I'm using the wiring diagram shown on post 152. Thanks.
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Old February 21st, 2017, 02:13   #155
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In this case, it appears it's just a separate feed from the battery. I'd confirm with the Bentley, and if so, choose whichever.

-Todd
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Old May 2nd, 2017, 13:38   #156
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Managed to tear into the driver's seat after finding that the thermistor circuit tests "open." Most seem to state that it's the thermistor wires that break, but having the seat apart I'm not seeing any signs of breakage:



I cut just to start tracing the wires. Hard to see, but the wires seem perfectly fine, though who is to say whether they couldn't be broken inside the insulation (I've read that they tend to break out-right). I'm hesitant to cut up any further unless I'm certain that the thermistor is shot: I'll be cutting right over the elements themselves. Not certain how the wires connect down below; seem to disappear into some clumps of black glob-y material, which I'm also a bit hesitant to mess with.

Last edited by UhOh; May 2nd, 2017 at 13:41.
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Old May 2nd, 2017, 15:10   #157
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Quote:
Originally Posted by ToddA1 View Post
No clue what 30A means, other than 30 amps.

30 is a constant 12v power source. As the diagram mentions, it's unswitched.

-Todd
I know this is old post, but that does NOT mean 30 amps. DIN standard wiring in German cars 15 is switched ignition, 30 is battery +, 31 is ground, 75/x is load reduction (aka accessory).

In this case 30a is a secondary battery feed.

Jason
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Old May 2nd, 2017, 19:49   #158
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Quote:
Originally Posted by SilverGhost View Post
DIN standard wiring in German cars 15 is switched ignition, 30 is battery +, 31 is ground, 75/x is load reduction (aka accessory).
I'm familiar with German wiring, but based on the diagram provided, there was no "30A", which was confusing. My response included:

Quote:
Originally Posted by ToddA1 View Post
30 is a constant 12v power source. As the diagram mentions, it's unswitched.

Quote:
Originally Posted by SilverGhost View Post
In this case 30a is a secondary battery feed.
Jason

Once the pic was posted, it added clarity, which I replied:

Quote:
Originally Posted by ToddA1 View Post
In this case, it appears it's just a separate feed from the battery.
-Todd
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Old May 3rd, 2017, 09:58   #159
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Sorry, ToddA1. I meant to quote the post after yours. I'm not sure how I managed to screw that up.

Jason
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Old February 22nd, 2018, 20:09   #160
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Following up to my previous post above (#156), I sliced further down and found one of the wires to the thermistor broken. All has been back together and working in my car for some time now (awesome this winter!). It's looking like I now need to do the same repair to the driver's seat in the wife's car (which is what brought me back here). I had thought that I'd seen someone do such a repair in-car, popping the back of the lower seat cushion loose, but have been unable to find (just to verify that it does work, that it's the same style of seat); if anyone is familiar with that info (not sure if it was on this site or not- thought it was) I'd appreciate any tips to where I can see/find it.
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