Here is MB Star DiagnosisXentry/DAS Developer ModeUser Manual,incl three part:

What you need for Xentry/DAS Developer Mode?

When & why you should use Developer Mode?

How to use Developer Mode step by step?

THE MOST IMPORTANT NOTE: you are tryingonyour own risk!!!!!!!!

Be very careful when using the Developer functions! Many of them can cause irreversible damage to the components of the vehicle and may cause personal injury!Please be aware that modification to some specific systems (airbags, braking systems) may make the vehicle unsafe for on road use and may violate the local highway laws, rendering the car not roadworthy in the legal aspect.

This is especially true for the SRS modules, where unintentional usage of developer options may cause deployment of airbags/tensioners and other aggressive restraint systems.

IMPORTANT NOTE: what do you need for Xentry/DAS Developer Mode?

- original Mercedes diagnostic tools like Supermbstar c3or HQ clone like SDconnect C4 china clone mux

-DAS/XENTRYwith good installation

- a laptop running with Windows XP better

IMPORTANT NOTE: why & when should you use Xentry/DAS Developer Mode?

As a presumed DASuseryou have probably learned already that there arenumberof functions that would logically belong to the software options, but they

are missing from the regular DAS installations. These include recoding (variant coding) the control units without SCNs (Software Calibration Numbers), de/activation of commercially sensitive options (in-motion video of tv/dvd), recoding the configuration of airbag units, seat belt reminders, changing the configuration of instrument clusters, restoring damaged EEPROM contents for Comand/APS and other ECUs and many more. There is also an additional benefit: sometimes control units recorda DTCs(error codes) that are filtered out by the production software. Developer kit allowsunfilteredview on the module's error memory, therefore allowingto seeall stored trouble codes, including the masked ones.

The reasons for disabling these functions in the DAS setups seen at the dealership are very simple: firstly, risk associated with using them is too high to open these tools to (very often) under trained and rushing technicians; secondly, there are several legal obligations that put restrictions on what the dealer can do and what he can not - for instance, recoding tv-in-motion, airbagsand emission- relatedsystems fall into this category. Thirdly, electronically damaged components very often result inreplacement,therefore repairing (recoding) would haveadverseeffect on spare parts revenue.

Here is howto :clean ASSYST Plus Memory

Firstly, you need the mentionedDeveloper keymade according to your LAN ID. Before scrapping your old key, take note of the LAN ID (there are some cases when it changes ie. when reconfiguring the hardware) and the current License Key in the DAS.Both informationcan be found in the licensing menu of Star Utilities. Then replace your current key withDeveloperkey, save and restart DAS. After selection of vehicleclassthere should be now a new screen (in German, except V-Series and W221 where it comes in English) informing you about dangers associated with using Developer Kit. You are good to go now.

InDeveloper mode: (tested version 11-2010)

Steuergerate (Control units) ->F3

Aufbau (Body) ->F3

ZGW (CGW) ->F3

Entwicklungen (Development data) ->F3

Steuergerate - Anpassungen (Control unit adaption) ->F3

Programmieren (Update) von Steuergeraten (Control module programming) ->F3

Steuergeratprogrammieren(Auswahl) (Program control unit (Selection)) ->F3

Now we have 2 options to flash the ZGW/CGW with, choose the correct one

Don't panic ! if you choose the wrongfile ,it terminates process and you can do it over again

Confirm Flash pop-up with Ja (Yes)

Afterthatitsays :"Das Steuergeratewurdeerfolgreichprogrammiert"

->"OK" it ask for a reset -> JA (Yes) ->

ECU Reset (FN_ECU_Reset) ->F3 again ->F3

Now you Complete full History wipe

Enable ComandDVD/TV in Motion (W211 W219) and OTHERS

USE THIS TIP WITH CARE AND COMMON SENSE !!! AND OBEY LOCAL LAWS.

In Developer mode :

Audio, Video, Navigation und Telematik ->F3

a screen might pop up with all kind of settings, ignore and press F2

New screen with ESD warning ->F3 COMAND /AUDIO -AUDIO 50oderCOMAND ->F3

Entwicklungsdaten ->F3

Steuergerate-Anpassungen ->F3 Steuergerate-Anpassungen (Variantencoderierung) ->F3

HU Parameter ->F3 scroll down to line: Driving speed is more than 0 kph and

Driving speed is more than 10 kph and BOTH enable them and ->F3 to confirm coding

Now youbeable to watch DVD/TV when car is in motion

Uprate the speed limited in a gasoline (ME-series controller) engine control unit

Log on to DAS, connect to the car, select:

Control Units -> Drive -> ME-SFI 28 -> Development Data.

Then select the Control Unit Adaptations -> Explizite Kodierung

This option works quite the same in Diesel engine models, howeverifound it more difficult to use (quite frequently modules are replying with an error message to the attempt of recoding). I was able to successfully remove the speed limiter on a CDI2 series module from the W210 model and some others as well.

Addrear airbags to the AB control module

Control Units -> Body -> Airbag (AB) -> Development Data -> Control Module Adaptations -> Variant Coding -> Fahrzeugausstatung Kodieren

(the last menu entry can be slightly differentin various module variants)

Select the drop-down list in the field Airbag Hinten Rechts and Airbag Hinten Links – set to YES. Back up to the main Airbag menu, reset the fault codes, cycle ignition, reset fault codes again and cycle the ignition for2ndtime (this step is very important).

Addfoglamps to function as a cornering aid

Select Body, then Driver Side SAM -> Development Data -> Control Unit Adaptations -> Variant Coding -> Abbiegelicht set to ON (" ja”).

Then go to the Passenger SAM (if present, for example in 211/219 model series) and similarly, perform the same coding in the second SAM unit. I have found that quite often cars manufactured prior toyear2003 have the relevant cornering lights option available in the left sam, however right sam is missing it. Not a big problem since these are readily and cheaply available from the second-hand market.

For all the onboard systems to recognize the new function you will also need to recode the CGW or EZS and mark the appropriate factory option in the adaptations.

Hidden error codes

For W211/W219/W230 series with SBC system, go to the Chassis-> Sensotronic Brake Control (SBC) then enter Development Data then call up Fault Codes. Most likely, a car that has been driven for some time will have a code "Event: ABS Bremsung” stored. This Fault/Event is not normally shown in the general menu of DAS – it is being filtered. It actually

doesnot represent an actual error, just a specific condition (hard braking with ABS activation). You will find many modules that actually filter out some more or less useful fault codes.

This menu is also very useful when evaluating vague fault codes (ie: "Hydraulics fault” in the general version in the developer menu can be drilled down to something more meaningful like "rear left release valve stuck in closed state” – this will come in German though).

Adapt ing the SRS control unit to a new car (different configuration, different VIN).

First ofallerase all present error codes in the unit if possible. If there are current faults the airbag module might not get properly reinitialized.

Then proceed to the menu control unit adaptations -> special functions -> Control Unit is released.

From this pointdo not turn the ignition offor reset the control module. Proceed to the menu option "initial startup” where the current configuration will be reinitialized and new VIN can be written to the control unit.

Please pay attention to the specified configuration (ie. Does the car have rear side airbags?) otherwiseyou will end up with a controller that does not recognize airbags installed in the vehicle.

After completing the initial startup, reset the control module (cycle ignition) and erase all fault codes resulting from the startup process.

Extend SBC life

UNDER NO CIRCUMSTANCES USE THIS PROCEDURE MORE THAN ONCE ON ANY CAR AS TRUE SERVICE LIFE OF SBC UNIT IS AROUND 160-180% OF WHAT MB SET THE UNIT AT

Make sure engine is running !!!

In Developer mode you need to go to Entwickelingsdaten - >ansteueringen-> GesamstlisteallerAnsteuerungen

to see how many times brake has been pressed there is a line that says: Bremsenzahler (DJ_GetBrLive)

then 1 line down there you see Bremsenzahleraktualisierenund Lebensdauerzahler F neuberechenen-> clickit !

ParameteruINBR= 0

then click F3

1 line down Bremsenzahler auf beliebigen Wert setzen (DJ_SetNBr) -> click it

Parameter uINBR = 0

then click F3

then scroll down untill you see theline's:

Lebensdauerzahler F neu berechenen (DJ_CalcLiveTime)

Parameter uINBR = 0

then click F3

Lebensdauerzahler F neu berechenen und schreiben (DJ_BuildAndWriteF)

Parameter uINBR = 0

then click F3

Log out of SBC !!

log out of verhicle !!

letenginerun at least 10 minutes or drive at least 10 minutes

If no coils aredamaged ,SBC fault code is not AKTUEL no more

Desactivate seat children and ocuppancy seat in mercedes ml270 cdi

MUST READ !!

Warning !! Warning !!

After completing this procedure

NEVER use a child seat in this seat again

Warning !! Warning !!

EXTREME CAUTION TO BE USED WITH THIS METHOD

In Developermode ,you have to Disable AKZE inpassengerseat.

When you disable this feature, passenger airbag inDashboard,will work ALLWAYS when crash signal come's from the front of thecar ,even if no passenger is sitting in thischair .So in an accident from the front, youallwayshave to buy a new Dashboard + dash airbag as well

Important !!

After you disabled AKZE in SRS unit, youwill notice you can't erase thefault ,or another fault came back (fault coding).

To completeprocedure,you have to unplug the Yellow AKZE connector underpassengerseat, so SRS can't measure anything connected on this input port.

Now you can erase Fault codes inSRS ,and your SRS light inInstrumentclusterwill go off

MUST READ !!

Warning !! Warning !!

After completing this procedure

NEVER use a child seat in this seat again

Warning !! Warning !!

Activate this secret function aslitres, datum, bigger pictures/symbols of some check controls on all models
like W211

AGAIN! DISCLAIMER: The author takesno responsibilityfor any damage caused byuseof theDeveloper Kitof DAS. This option is a very powerful tool but must be used responsibly and withextreme caution. If in doubt, please do not blindly try the menu options – several of them will cause EEPROM or FLASH memory damage, requiring the module to be disassembled and reprogrammed using external tools - this is a troublesome and risky operation. Unintentional actuation of components may cause mechanical failures or even risk of fire - please remember, that inDeveloper Mode DASwill do exactly what you command,all safetychecks and interlocks are bypassed!

src:

http://blog.mbstartool.com/2017/08/28/xentry-das-developer-mode-manual/

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