2011 BMW M3 CAS3+ key add via Autel MaxiIM508 + XP400

Question: Have Autel MaxiIM608 (=Autel MaxiIM508 + XP400) and doing a CAS3 on the bench today to add key, I checked on the vehicle see if its ISTAP or not, Can we add key to ISTAP version on the bench? Or must be it be downgraded in the car first?

 

Answer: Add key with DME ISN.

 

Question: Β So read isn on bench or in car? What if the CAS has been downgraded? Can a key be added and written to it on the bench?

 

Answer: I don’t do anything in car myself, always on bench with power supply.
What DME does it have?
If CAS is downgraded (or “upgraded” as autel screen says), it should no longer by key encrypted and you can add a key on bench
I just find it easier and faster to read the DME ISN and add a key

 

Done the same procedure as below: 2011 BMW M3 CAS3+ key add via Autel MaxiIM508 + XP400:

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 01

IMG: Autel MaxiIM508 connected to the OBD2 port of 2011 BMW M3

 

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 02

IMG: Autel XP400 connected to Autel MaxiIM508.

 

Establishing vehicle communication.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 03

 

Updating the second part…Not touch any button of vehicle, please wait…

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 04

 

Establishing vehicle communication.

 

Connecting to internet to obtain data…

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 05

 

ECU upgrade sucessfully!

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 06

 

Smart mode:

CAS part number…

CAS type: CAS3++ (ISTAP)

Current CAS of the vehicle is encrypted, please insert a working key and switch ignition on first.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 07

 

Connecting to internet to obtain data…

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 08

 

Reading RAM, will take about 1 minute…

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 09

 

Remove the key from the ignition switch. If it is a smart key, please take the key out of the car.

Please be sure to operate as required, otherwise this may make the vehicle abnormal. If the vehicle is abnormal after reading out the key information, please try performing [Clear DTC] to make it back into the normal status.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 10

 

Tap “OK” and connecting to the internet to obtain data…

Reading key information…

Read key information success!

Tap “Yes” to backup the original key data.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 11

Β 

File saved successfully.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 12

 

Choose “Key3”, then “Programmer generate key”.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 13

 

Tap “Semi-smart key”.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 14

 

Please connect the device to the programmer (XP400) and put the new key into the programmer card slot.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 15

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 16

 

Writing key, please wait…

 

Generating dealer key success. Please insert the key into the ignition switch to start the car once.

If the vehicle cannot be started, or the ELV is displayed on the instrument, please synchronize the ELV or DME according to the situation.

Autel Maxiim508 Xp400 2011 Bmw M3 Key Add 17

 

Done!

 

Autel MaxiIM508 + XP400 is good obd2 programmer.

 

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