Replacement VW Transporter key.

This job was to replace lost keys for an imported Brazilian VW Transporter. Despite being long discontinued in Europe, this particular model continued to be made in South America. The first stage (before EEPROM programming a new transponder into the immobiliser) is to make the metal key blade.

The vehicle had sat for several years without moving.  We couldn’t manage to decode the locks on the vehicle using a special tool or by impressioning. The importers were unable to provide key information so the only option was to remove the steering wheel,  remove the steering lock then strip the entire ignition lock.

 

Importance of the backup key in a VW Passat dash remote.

VW passat keyA customer was suddenly unable to open his VW Passat using the remote.  The remote battery had gone flat, and by the time the battery had been replaced it had lost synchronisation with the car.  (To start this car the whole remote slots into the dashboard. There is no ignition barrel).

Ordinarily that’s not a problem because the emergency backup key could be used to open the door. Not in this case,  the backup key had been lost. 

Fortunately we were able to open the car for the customer, synchronise the remote again, and cut a replacement backup key for the customer.

If you’ve lost your backup key,  think about what you’d do if the remote is flat, or goes through the washing machine.

Ford Fiesta key

Typically an old, worn Tibbe key will have a similarly worn lock too. This is a Fiesta lock being stripped down. Normally the dustcover has badly worn and will grab a newly cut key and make it difficult, or impossible to remove from the lock.

You can gently chamfer the key so that that the key can pull out, or just remove the dust cover and keep the key sharp. 

EEPROM programming replacement car key

There are several methods of producing a new transponder (chip) car key.  It is far easier and cheaper to copy an existing car key but if you’ve lost all the keys it is often possible to program a new key diagnostically. If that can’t be done it may be necessary to remove the immobiliser (aka ECU, EWS) and write information directly to the chip on the board.  This may require stripping off your dashboard or clocks to get to it.

In this picture we are EEPROM programming a new key into a Fiat Punto immobiliser.

car key programming
EEPROM programming a Fiat ECU

Skoda Fabia key

A dealer needed an extra key for a car that was being collected that afternoon. He couldn’t wait the week for a dealer key, and didn’t want to pay dealer prices either.  This era Skoda uses the same keys and transponders as VW, Seat and some Porsche.

Replacement skoda key
Skoda Fabia key

There are 4 main ways to provide replacement car keys. Cloning the existing chip. EEPROM programming a new chip into the ECU/IMMO. OBD programming into the ECU/IMMO. Dealer only keys.