3 series E46 5 series E39 7 series E38 X3 E83 X5 E53 Z4 E85 etc for B-MW EWS Editor Version 3.2.0 EWS Editor key programmer
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Auto EWS Editor Latest Version 3.2.0 professional auto key programmer with high quality


Software Version:



1. Selecting wrong test point you may damage or break EWS3 unit! 

2. PCB of EWS3 unit is covered with non-conductive compound, it may lead to poor contact of probe with test point on the PCB of EWS3 unit, and you will be unable to connect to EWS3 unit.



This device is designed to work with factory anti-theft system (immobilizer) EWS. Immobilizer EWS has been installed on the BMW AG vehicles since 1996. Cars such as BMW 3 series (E46), 5 series (E39), 7 series (E38), X3 (E83), X5 (E53), Z4 (E85) and other vehicles of BMW AG - MiniCooper, Rover 75, Range Rover are equipped with this system.


USB interface:

No AC/DC adaptor required

All modifications of factory immobilizers are supported: EWS1, EWS2, EWS3, EWS3+

Reading and writing of EWS3 and EWS3+ via k-line

Automatic version determination of EWS via reading the memory dump

Adding new keys

Adding used keys (if key’s password is available)

Resetting used keys into a “new” state (if key’s password is available)

Recovery of key's synchronization (matching keys)

Blocking and releasing vehicle access via the specific key

Recovering of coding data (vehicle's specific information)

Changing EWS parameters (product number, date of manufacturing, etc)

Resetting used EWS3 (loading default values)

Changing VIN number which is contained in EWS unit

Changing VIN number which is contained in key (since 1998)

Changing mileage in EWS (contained in EWS since 1998 and on)

Changing mileage in key (contained in key since 1998 and on)

Software creates log-file of read and written keys, which helps to exclude the error of casual blocking key with password, etc.

Possibility of control and recovery of variable part of matching code for EWS and engine control unit DME/DDE

Configuring new transponders PCF7930 and PCF7935 to work with EWS unit.

Supports FSU (Firmware Secure Update) from Internet.Except processors with mask set D47J. EWS unit equipped with this processor has read protection, attempt of reading the processor with this mask set results EEPROM data loss. 

To recover the data in EWS3 unit with processor (D47J) use the function [ Reset to factory defaults ]


Supported Cars:

3 series (E46)

5 series (E39)

7 series (8)

X3 (E83)


Z4 (E85)

Range Rover Vogue

Rover 75

Mini Cooper


Checking of MOTOROLA processor mask set which is used in some EWS units. Before proceed to reading of EWS data using the function [ EWS Read ]


Read the marking (maskset) plotted on processor (Picture):

1. Mask set D47J -old versions of EWS1, EWS2 and EWS3 hw:2 sw:5. Refer to #Recovering of EWS

2. Mask set D46J -new versions of EWS3 and EWS3+. This processor does not contain unpleasant


Driver Installation:

1. Start EWS_EditorInst.exe file

2. Select installation path. The default path is C: Program Files AvtoTools EWS_Editor

3. Please connect device to USB

4. Install drivers from folder C:Program FilesAvtoTools EWS_EditorDrivers Reading EWS

5. Unplug and detach EWS3 unit from the car. Attaching points of EWS3 unit can be found in BM

6. Take the plastic case off from EWS3

7. Connect EWS3 to the socket of the cable for reading/writing EWS3

8. Reassure that in EWS Editor programme type of EWS is switched to Auto

9. In EWS Editor programme select [ Read EWS ] function

10. Programme tries to read contents of EWS3 four times, meantime you must touch test point on the PCB (printed circuit board) of EWS3 with probe (see picture below), hold it on the test point untill reading procedure starts.

11. If the connection established successfully, progress bar appears:

12. Remove the probe off the PCB


Writing EWS:

1. Connect EWS3 to the socket of the cable for reading/writing EWS3

2. Perform all the necessary changes

3. Select [ Save EWS ] function in EWS Editor programme

​Tech Guide:



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