It’s aimed to help you all to connect to an EWS4 adapter, read and write BMW EWS4 using a Xprog or R270 programmer.
Applicable to:
All models fitted with BMW EWS4
Note: EWS4 is now supplied by BMW as the universal service part for all vehicles originally fitted with EWS3.
EWS4 old version:
EWS4 new version:
Source: http://www.cardiagtool.co.uk/bmw-ews-43-44-ic-adaptor.html
- Allows a suitable programmer to read / program the micro in EWS4 in seconds.
- Uses the original manufacturer’s test pads on the back of the PCB
- No soldering required.
- Precision made in the UK.
- Supplied with connectors for R270 and Xprog-M programmers.
Features:
1) Spring loaded contact pins
2) Steel location pins – use existing holes in EWS PCB
3) Connector header for XProg-M
4) Connector header for R270 Programmer
How-to’s:
1) Take the PCB out of the EWS4, and mount it on the Adapter as shown:
2) Choose the appropriate cable. Note: Both cables are supplied.
Connect to Programmer:
Connect an EWS4 adapter to a R270 Programmer:
(a R270 Programmer seems to be available in a variety of plastic enclosures)
With the old EWS4 adapter:
With the new EWS4 adapter:
R270 with EWS4 adapter reads/writes EWS4 successfully.
Connect an EWS4 adapter to a Xprog-M:
Note: The Security Bypass Adapter for Xprog-M needs to be fitted as shown
With the old EWS4 adapter:
With the new EWS4 adapter:
Xprog-m with EWS4 adapter reads/writes EWS4 successfully.
The last, the R270 Programmer seems to give more reliable results than the Xprog-M for this micro.