Here he is:

The VW Beetle 1.9 TDI

Be sure, that the engine is turned off!

Now open the hood.

Loosen the engine plug of

the engine cover.

How does it continue?

If you see closer into the engine,

then you find the oval plug connection

of the motor control unit.

Found,!

Now separate the patch cord...

... and put the chip into the connection.

Now screw the engine cover back on,

close the hood and go on to

the first test run!