Mercedes Benz SL500 (R129) 2001
Made a key for a 2001 SL500, car ran fine for 2 days.. Then car won’t start..
Took immo box out and read HC05 chip with xprog 5.55, data was garbled..
Tried writing data to two new/used immo boxes.. those were bad too..
Put Julie emulator on DME, a Bosch ME2.0, first try, the car started but no gas pedal, wrote data again and personalized DME, and it worked fine…
When checking DAS authorizations under actual values, make sure to hit the right arrow button, it shows the last authorization…
Procedure to personalize/code DME:
Select Control unit adaptations->Version coding->Read or carry out coding
HHT-WIN displays coding number, coding unit number and chassis,and valid code numbers
Press YES to Transfer coding to new control module
Turn off ignition
Coding has been carried out
Identification is being carried out.
Engine control module is automatically inerlocked after 40 engine starts
engine speed raise from o to 1250 rpm or so and the green indicators on MB SD C5 unit flash