Skezza

You done a point to point wiring check?

It'll either be the lock module or the wiring... It's usually the lock module, although the wires can get splinched on rare occasions. It's a dead simple system on the face of it. A reflection of the times ultimately. You can repair the lock modules if you've got time (take apart clean up switches and touch up solder) but honestly, I wouldn't bother. You can pick them up on the internet, aftermarket for about £20-£30 inc shipping. They're fine and they're probably a lot better made. https://www.ebay.co.uk/itm/372779804854?chn=ps&_ul=GB&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&mkscid=101&itemid=372779804854&targetid=1814673647502&device=c&mktype=pla&googleloc=9046430&poi=&campaignid=19089547614&mkgroupid=142438599285&rlsatarget=aud-1641271186540:pla-1814673647502&abcId=9303859&merchantid=138795771&gad_source=1&gclid=Cj0KCQjwpZWzBhC0ARIsACvjWRMwmQRlLcXahVXFvVso-bk2I0PSvRrggd7nt5xffW66_-eB3osTTCsaAjZxEALw_wcB

It kind of sounds like another faulty thermostat. Mine's just gone, very similar symptoms. Mine wouldn't get anywhere near 12 o clock on the dial, where it has always been before. It blew lukewarm out of the vents. If I sat in traffic, it might get up to 12 o clock. I never could tell if it was running rich or whether the engine was clever enough to compensate, but I think it probably did run rich constantly as it thought it was excessively cooling the engine. Just replaced mine as well. Pretty stupid job on a Lupo GTI. The thermostat housing is right next to a gear linkage which leaves you very little space to work in, unless you start moving or removing crap. 15 minute job becomes an hour job.

Any noticeable vibrations? Does it sound rough?

I don't think there would be any issues from an ECU perspective, but how are you going to wire it in? Do you have the right looms?

I had it beep once or twice on my SDI. Usually right on starting the car for some reason (oil was never low). Never stayed on though. @mattarosahad a Lupo 1.0 which had it intermittently for a while without engine failure. Maybe a dodgy design?

Uhh, effort. Fine. Got some VHT in the garage anyway.

Brother in law has been borrowing my GTI and got it MOTd. They said it needed a new rear caliper but the caliper they've installed is silver. Do aftermarket parts come on silver or is this likely the wrong caliper?

That sounds like the kind of energy a radio might pull if it was wired up wrong.

Still for sale ?

You could do with the immo code but I don't think it's needed if you have the original key. What ECU is it?

You're going to need to pair it with your immobilizer. Ross tech have a guide, it's not madly complicated.

It almost certainly isn't blown. Your car just didn't come with one.

I don't think you can reset to a specific value without actually changing the interval. You can use VCDS to reset the service interval.

Do you have the bonnet release handle?

No. I didn't use a device. I extracted the pin.

I tested my method on a Polo 6N2 GTI. Friend of @mattarosa it still took me about 20-30 mins. No reprogramming of the EEPROM involved, just obtained the SKC and entered through the front door. So even for someone who knows how, it's not like a rapid hot wire job. Now.... The Audi and Jetta? Different story. For the Audi, I was able to obtain the SKC in a matter of seconds using a £5 'specialist. cable.... Which I found out really quickly is just a bog standard KKL cable they sell on eBay. New key took me no more than 5 mins, sat on the drivers seat. All very comfortable. The Jetta, I bought myself a key cloning device called Xhorse. A local shop quoted me £80. This device was £100 delivered. There's nothing like DIY plus you get to keep the tool of evil. It took less than 5 mins to clone the key lol.

Do 1.4 16V's have relay 109?

There is no easy way of doing this for a GTI. I spent 18 months researching, hacking, and finally cracking and while the solution was ultimately simple enough.... it wasn't that simple.... i.e. a fix in a can simple. There is no fix in a can for the Lupo GTI key situation. We've discussed before the idea of posting my findings. I was fairly deep into a post before I decided to can it off. Last thing we need is Lupo's to start going missing.

Good luck with it. But I have little faith that it'll work.

You will need your SKC. Do you have it?

Why not just take the transponder out the old key?

As in, you'll sand it down, remove corrosion, fill, spray.

You'd be better going aftermarket for both those features.

Yes. As in filled with either weld and sanded or if pikey then isopon.