JonA4

On 12/4/2021 at 7:57 PM, Stevey Y said:

Hi thats a bit different the transponder is that part to the left with the winding coils and the beggar is cold soldered in, if you can get the part number for your key there are loads of new un programmed  fobs on eBay for not to much money, I was expecting to see a black transponder chip wedged on the board somewhere, I have spoken to a friend who is an automotive locksmith and he said the plug in keys are a nightmare which is why later models had the key modulation from the fob rather than the key having to be physically inside what was the ignition barrel, I would consult a local car key locksmith as they may well have a solution for you, Jamie has always told me what fob to buy and where to get it from and then programmed it from the original.

Steve.

Good advice thanks.

I was thinking it was the bit with the coil and that is beyond my soldering skills!

will talk to a pro.

Anyone any recs in the Oxfordshire/Berkshire/south Bucks area? 

Hmm, So where is the transponder chip?

I was expecting a little glass capsule but not seeing anything like that.

Youtube has not been my friend on this one!

On 10/28/2021 at 4:53 PM, Stevey Y said:

Hi if you look at the transponder in the duff key you should be able to buy a replacement on the internet, replacing this should not affect the keys functions as the PCB is original and the transponder only communicates with the pick up ring inside the ignition barrel.

Steve.

Anyone know what would need to be done in terms of pairing or programming a replacement transponder to the car.

Presumably can't be automatic otherwise anyone could start your car with a transponder off eBay? Or am I missing something?

I don't want to buy a transponder chip and then I don't have the kit to program it.

Any advice appreciated, thanks.

1 hour ago, Stevey Y said:

Hi if you look at the transponder in the duff key you should be able to buy a replacement on the internet, replacing this should not affect the keys functions as the PCB is original and the transponder only communicates with the pick up ring inside the ignition barrel.

Steve.

Thanks Steve,

Is re-programming a DIY job? I have OBD2 cables for my Subaru and Alfa but never dabbled with the Audi!

Hi all,

2011 A4 Avant S Line.

I have one key that works fine. The spare key has a good battery and will unlock and lock car but when inserted in the dash there is no response whatsoever.

So I am assuming this is a transponder chip issue (the good fob will start the car without an battery in it).

Any suggestions on a fix that doesn't involve a trip to an Audi dealer?

Just to clarify, this the fob that has to be inserted in the slot in the dash, not an "advanced" key.

Thanks