3 Ways to Program BMW EWS4 Transponder without Soldering

As titled, here obdii365.com introduces 2 methods to program BMW EWS4 (EWS4.3 & EWS4.4 transponder) using BMW EWS-4.3 & 4.4 IC adapter adapter without soldering.
bmw-ews4-immo-box
ews-adapter
The EWS4 IC adapter can be used with R270/R280/Xprog/AK90 etc.
Method 1:
Program EWS4 key with AK90+/AK91 & EWS4 adapter 
Remove EWS4 immo box
Connect EWS4 board to EWS4 adapter and AK90 key programmer
ak90-bmw-ews4-key-1

 

ak90-bmw-ews4-key-2

 

ak90-bmw-ews4-key-3
ak90-bmw-ews4-key-4

 

ak90-bmw-ews4-key-5
Select MCU 2L86D and Read EWS
ak90-bmw-ews4-key-6
Read data success and save data
ak90-bmw-ews4-key-7
ak90-bmw-ews4-key-8
EWS Analyse
ak90-bmw-ews4-key-9
You should be at the main screen with all the numbers and letters on, place your virgin/new key into the slot on the AK90 and select write key
Select the slot and select write key you will get a warning making sure that you have placed key in slot just select yes
After aprox 1-2mins you should see confirmation that the keys data is coded
Put EWS4 unit back to car.
Method 2:
Read dump with R270 & Write key with key programmer
Again remove EWS4 immo box
Connect EWS4 board with EWS4 adapter and R270 BDM programmer
r270-bmw-ews4-key-1
r270-bmw-ews4-key-2

 

r270-bmw-ews4-key-3
Open R270 in-circuit programmer software
Select correct MCU: 2L86D
r270-bmw-ews4-key-4
Press Read
Software requests to check pin state
Press YES
r270-bmw-ews4-key-5
Pin check and MCU correct
r270-bmw-ews4-key-6
Press Yes and read begins
r270-bmw-ews4-key-7
Save dump file (file containing rolling key codes)
r270-bmw-ews4-key-8
Open your key programmer software, i.e AD-900 pro or other programmer can be loaded dump file
Select EEPROM and upload bin file read by R270
ad900-bmw-ews4-key-1
ad900-bmw-ews4-key-2
Software opens correct module 063 for BMW EWS4
ad900-bmw-ews4-key-3
Key slot 1 to 4 are listed
To avoid manufacturer conflict, select highest available slot 4
ad900-bmw-ews4-key-4
Insert blank 7935 transponder into AD900 and press Program button
ad900-bmw-ews4-key-5
Data is sent to the AD900
Transponder is produced to start vehicle
Then reinstall EWS4 immo box back to vehicle.
Method 3: Program EWS4 with vvdi prog
Read EWS4 EEPROM with VVDI Prog using Xhorse EWS4 adapter
Xhorse ews4 adapter can be used with vvdi-prog only.
Then program key with VVDI2 BMW key programmer.
Reference blog:
How to make BMW EWS4 key with VVDI Prog & EWS4 adapter

About eobd21

I am a car lover and like to repair car by myself, and know more info about car diagnostic tool and other obd2 tools, share these info with everyone.
This entry was posted in Auto Key Programmer and tagged , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s