Help car wont start

[xd-data-ii]

1) You need to get two new transponders for the keys. They cant be re-coded again.
2) Then get the SKC code for your car somehow - dealers may give it to you and may have to pay for it.
3)Then with these you can use Vag-Com if you have it to re-match the keys - go to ross-tech website to see how

Had an issue with my keys last year when i got a flip key and tried to match the key after breaker the transponder in my original key. Didnt work and i managed to unmatch my other original key. Eventually after repeated trying with Vag-Com got the 'other original' key back working again and left well alone. Then got new clean transponders and was a couple of minute job to match them. So now have three keys.
You could probably try 2 and 3 above though. and keep trying for a while if it doesnt work.

 

[specialvat]

Wish that would work.
Dealer tried to resync the keys took the battery off for over an hour tried again,etc still wont see the bloody keys.
Now costing me 125 pounds for 2 hour diags
They best find the fault tomorrow and fix it and it best be cheap.
Or they will get it via 50p a week.lol

 

[specialvat]

Wish that would work.
Dealer tried to resync the keys took the battery off for over an hour tried again,etc still wont see the bloody keys.
Now costing me 125 pounds for 2 hour diags
They best find the fault tomorrow and fix it and it best be cheap.
Or they will get it via 50p a week.lol

 

[Muttley]

xd-data-ii: your recommendation will only work if the rest of the immobiliser system is still working. Since neither key will start the car, I'd be looking for a common factor, which leads to the reading coil, the ECU (where the immobiliser action is carried out) or just possibly the instrument cluster, which carries the immobiliser control in some Leons (depending on year, I think). If one of these has failed it doesn't matter how many new transponders you try.

That's why I think the car needs to go to a Seat dealer to have the immobiliser checked out and the fault diagnosed. If it's the coil, for instance, the keys don't have to be re-adapted, same if its a loose connection somewhere. And you really don't want to adapt new keys unless you have to.

As far as I can tell, the transponders can only be adapted to one car at a time: if you adapt them to another immobiliser they will stop working in the first car.

Apparantly the latest development in keycode security is that the SKC is not displayed at all and so the dealer can't give it to you even if they wanted to. It is downloaded from VAG directly into the diagnostic equipment that is performing the adaption. That's why you need a Seat dealer, and why VAG-com can't be used - the DIY operator doesn't have the ability to connect to the dealer network to get the SKC downloaded.

 

[specialvat]

it is at the dealers since yesterday.They cant get the keys to work either.
So they are charging me for 2 hours diags

 

[xd-data-ii]

Yep, that sounds right.

Dealers can get the SKC code though. Did for me.
Just keep ringing different ones if they fob you off.

 

[corradophil]

Wish that would work.
Dealer tried to resync the keys took the battery off for over an hour tried again,etc still wont see the bloody keys.
Now costing me 125 pounds for 2 hour diags
They best find the fault tomorrow and fix it and it best be cheap.
Or they will get it via 50p a week.lol

I was not joking in my last post, it did solve the same issue you are having. We had been on the phone to the VW dealers for advise, removed the instruments and had a look at the transponder at the ignition switch, checked all connections, but no change.

Seriously for the two minutes it takes, and zero cost, give it a go.

VW suggested, new insturments, because the immobiliser is within them, and new transponders/keys, plus recovery to their workshop, it was looking like costing around £600.

 

[corradophil]

Yep, that sounds right.

Dealers can get the SKC code though. Did for me.
Just keep ringing different ones if they fob you off.

It depends if your SKC is 4 digit or 7 digit IIRC. If you have a 4 digit SKC it 'can' be provided, but the later 7 digit one is provided by VW/Seat and expires.

 

[xd-data-ii]

Yeah you're right. Sorry
I got the my 4 digit code.
Also gave me a 7 digit code for it aswell.

 

[lc_allan]

As said it doesn't sound good, two keys going at once points to the immobiliser system etc..
If you have the SKC code then it wouldn't hurt to get 2 new transponders. Approx £10-£14 and you could ask a nice forum member in the VAG com section to do it for you. Worth a try before shelling out on a big repair.

 

[specialvat]

Help Ithink my turbo has blown.

Hi can anyone help. Oil pressure light came on it was a blocked pick up in the sump.Sump problems cleared oil changed but now the power has gone.When the car hits boost it no longer whooshes it sound like the noise the windscreen washer makes. Apparently no oil to a turbo can kill it in seconds so i think this is my problem.
How can i check this and what sort of turbo would i need.
The car is a mk1 leon cupra t so its the 180bhp but i have done a few good mods which should have increased this past 200 bhp.

Someone please help a depressed cupra owner.

 

[specialvat]

Please help

I want to test my turbo does anyone have ideas how to do this.I was thinking of connecting a boost gauge to check this.Will this diagnose this.

Also if it is the turbo i need to replaced this before the oil seals go and drains my engine.I have an auq engine so what turbo would this have or howcan i tell

 

[olliep]

i believe its a ko3s. i had mine changed at a dealer in december made a massive difference to the cars performance afterwards so atleast if you do have to get a new one, you've got something to look forward to.

if your turbo was starved of oil it would do a real number on its self. fitting a boost guage probably wont help you a great deal because if the cars not pulling, a guage will just confirm what you know. where abouts are you? could see if anyone near you on here has vag-com? just on the off chance have a feel at the turbo exhaust manifold bolts to see if theyre loose. its the three 17mm bolts on the top of your turbo connecting it to the manifold (do it when its cold!! lol) which if you werent sure, is situated behind the engine block on the auq.

sorry i cant be much more help but seeing as noone else had replied thought i'd offer what i know

 

[Markyboyt]

I would advise you take of the turbo inlet pipe from the turbo, this is the pipe from your airbox down past the dv onto the turbo, you will then be able to get to the impellor shaft inside the turbo and try and turn it, if it turns freely then thats good, also try and move it side, you will probably feel it move very slightly but there shouldnt be much, if it moves a couple of mm or more then its a goner.

I've made this pic, sorry that it looks crap but its just to show what I mean above.
The impellor shaft runs through the turbo and is represented by the red dot, try and move it as the green arrows show and turn it like the yellow arrows show but try it both ways.
Hope this helps.

 

[Muttley]

Markyboyt's advice is good. Turbine and impeller are linked by a small-diameter shaft running in a plain bearing with its own oil supply pipe. The turbo runs at *very* high speed, and oil starvation will cause bearing failure very quickly.

 

[specialvat]

As usal the member on here are awesome.thanks for your reply.I am in Pontypool South Wales if anyone lives close with vag com let me know.
I will try the advise on here about the impeller and see what happens.Got a nasty feeling its gone though.
would it be best to put a new k03s on it or try upgrading it.
Either i am limit to a grand for this repair so any advice on a replacement,cost and where the buy from would be great.

Thaks for the replies very good information

 

[George]

As usal the member on here are awesome.thanks for your reply.I am in Pontypool South Wales if anyone lives close with vag com let me know.
I will try the advise on here about the impeller and see what happens.Got a nasty feeling its gone though.
would it be best to put a new k03s on it or try upgrading it.
Either i am limit to a grand for this repair so any advice on a replacement,cost and where the buy from would be great.

Thaks for the replies very good information

If you need a new turbo mate, there was a blue Cupra being broke on eBay (not sure if it's APP or AUQ, as they have different turbos K03 and K03s I think) , I got a couple of parts off it for my car dunno if it's still there though.

Otherwise, try a place called motors in motion, people have said they are good, and they have a large ebay shop..

Best of luck mate, hope it doesn't end up costing the world.

 

[specialvat]

K03s replaced or upgraded

Ihave a mk1 leon cura t 180bhp auq
Turbo has gone pop so needs a new one.
Should i just replace or is there any good upgrades for this under £1000.
If not can anyone tell me the best place to get a k03s from

 

[DannyC87]

you could get the BAM intake mani, K04 turbo, twin side mount intercoolers etc from a cupra r? there is a fair amount of second hand cupra r bits around from people upgrading to BT and front mount intercoolers etc.

 

[specialvat]

As mine is a cupra t not a a cupra r will a k04 fit.
I need a direct k03s replacement.
Also dont need another intercooler as I already have a FMIC.
Can anyone give me some ideas