Tuning Wiki

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Page organisation in this revision
Page type
Technical article
Subject
Tools
Parent
Section level
Applies to
No ECU-specific applicability
Tool groups
Diagnostic tools, Flashing and tuning tools
Manufacturers
Mercedes-Benz

Changes from revision 2 to revision 2

Removed text is struck through; added text is highlighted.

An engineering application, not XENTRY

Vediamo is a Mercedes-Benz engineering diagnostic application. It is not XENTRY Diagnosis and it is not DAS. Dealer guided tests, workshop information and online commissioning remain the factory workshop path described on the factory diagnostic equipment page. A workshop copy of Vediamo does not establish that an SCN or control-unit commissioning procedure can be completed offline.

The version 05.00 handbook, dated September 2012 and identified as Mercedes-Benz PWT/VEP, expands the name as Verteilte Diagnose Anwendung für Motoren, a distributed diagnostic application for engines. The same introduction says the program is no longer limited to engine control units. That handbook is an internal document. The wording here is taken from its introduction as reproduced outside Mercedes-Benz, including copies that preserve the German expansion and the PWT/VEP title-page identification. It is not a current public product page, and later unofficial builds are not treated as part of that 2012 text.

CAESAR, DIOGENES and the files they use

The handbook places Vediamo in the CAESAR/DIOGENES process chain. CAESAR is the communication platform: the diagnostic server talks to the selected interface through CAESAR drivers. DIOGENES is the diagnostic-data source. The handbook names three file roles that matter when identifying a dataset:

CBF, the DIOGENES diagnostic description for a control unit. CCF, a coding file. CFF, the CAESAR flash container. The handbook says programming from this application uses CFF rather than a raw BIN, HEX or S19 file directly.

Those names identify data formats in the engineering chain. They are not a procedure for building a flash file or for writing one to a vehicle.

The 2012 introduction says diagnosis is available over K-line and CAN, and lists the protocols RTMD+, MBISO, KWFB, KW2000 and UDS. It gives Part A, Part C and Part Y as examples of CAESAR communication hardware, and the hardware section also names Part W as SDconnect and Part P as an eCom/MVCI device. Which of those interfaces a particular installation actually supports has to be read from that installation. The same introduction says later versions were intended to move onto MVCI and to support ODX. That is a 2012 statement about intended later versions, not a description of every copy in circulation.

What the handbook says the software contains

Vediamo is a client-server application. The handbook’s module list includes a diagnostic server (DiagServer), a start centre, a system-configuration tool, and Ecoute as the interactive diagnostic client. It also describes Java programs, logging and simulation when no interface is connected. The functions named for Ecoute include control-unit selection, diagnostic services, fault memory, a quick test, variant coding, flash programming and OBD. Those are engineering operations against the loaded diagnostic data. Menus and available services change with the CBF and the control unit; the handbook does not make every service available on every Mercedes road car.

This page does not include a Vediamo screenshot. A verified image from Mercedes-Benz or from the handbook file itself was not used, and reseller demonstrations are not a substitute.

What the circulating guides mean by coding

The handbook names variant coding as an Ecoute function. The guides that circulate outside Mercedes are workshop blogs and saved Ecoute printouts, not a Mercedes procedure. For 722.9 they keep returning to a CBF named VGSNAG2 and to coding domains whose names contain VCD_SCN_Variantencodierung. The gearbox-specific claims, and where those guides disagree with each other, are on the 722.9 SCN page.

Read as a set, the guides are describing three different operations and calling all of them Vediamo coding:

Select or restore a string the CBF already understands. Ecoute can show the variants parameterised for a domain. A 6 April 2020 guide shows putting a previously saved coding string back through the manual-coding field of VCD_SCN_Variantencodierung_VGS_73, then writing it and using a hard reset if that CBF offers one. The same page treats restoring saved EEPROM blocks as a separate, block-by-block paste. Restoring a string that was read from that controller is not the same thing as calculating a new one. Edit the hexadecimal string by hand. A 21 July 2022 blog treats the VGSNAG2 SCN string as 42 bytes, assigns shift-program choices to bits, and says those bits sit in a different byte for software 0401 than for 0403. It gives yet another map for the 722.6 files EGS52 and EGS53. A Russian workshop page makes a further one-byte claim for a CBF it calls VGS4NAG2. The byte positions are not copied here. They already change inside a single blog when the software option changes, and this wiki has not checked them against a CBF or a vehicle. Swap in a modified CBF. Other posts describe a CBF edited so that a VGS2 personalisation clear, which the standard file does not offer, can be called. Their authors limit that claim to part A 033 545 73 32 and say it does not apply to VGS3 part A 003 446 03 10. That is a change to the diagnostic description. The modification is not described here and the file is not hosted.

None of the three is the DAS or XENTRY commissioning path. A domain that Vediamo can write does not show that the valve body, the software and the vehicle record belong together. Mercedes already documents limp-home and harsh engagement after 722.9 programming or SCN coding; see the 722.9 page.

How this differs from DTS Monaco and from dealer diagnosis

DTS Monaco is a Softing product aimed at ODX diagnostic databases. Vediamo, in the 2012 handbook, is the Mercedes CAESAR/DIOGENES application. Public Mercedes development advertisements show DTS Monaco in current engineering work. They do not say that Monaco replaced Vediamo, and this page does not invent that handover.

XENTRY and DAS present guided workshop tests and, where the account and the vehicle allow it, control-unit commissioning. Vediamo presents the diagnostic services described in the engineering data. Sellers who advertise Vediamo as an unrestricted offline substitute for online coding are going beyond what the handbook introduction establishes. Variant coding, SCN and flashing are distinguished on the SCN coding page.

Sources

Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.

Mercedes-Benz Vediamo handbook, version 05.00, September 2012, PWT/VEP, Werk 010. Internal handbook. The introduction, protocol list, CAESAR/DIOGENES description, CBF/CCF/CFF roles and module names are taken from that handbook as reproduced outside the company. No public Mercedes-Benz product page for this handbook was found; a download site is intentionally not linked. Accessed 2026-11-11. Softing DTS.monaco product page. Softing Automotive Electronics GmbH; used here only to separate the Softing ODX tester from Vediamo. Source revision product page, accessed 11 November 2026; accessed 2026-11-11. Benz Vediamo: restore variant, measurement and calibration data. Independent workshop page, 6 April 2020; distinguishes pasting back a saved VCD_SCN_Variantencodierung_VGS_73 string from restoring saved EEPROM blocks. Not a Mercedes procedure, and not tested here. Accessed 2026-11-11. OBDII365: shift-program bits for 722.9 and 722.6 in Vediamo. Aftermarket blog, 21 July 2022. Cited for the claim that the bit position changes with the software option. The byte map is not adopted. Accessed 2026-11-11. OBDII365: modified CBF for a VGS2 personalisation clear. Aftermarket blog, 13 March 2023. Cited for the part-number limit the author states. The modification is not described. Accessed 2026-11-11. iamsan.ru: Vediamo and XENTRY coding notes. Independent Russian workshop page; names VGSNAG2 and VGS4NAG2 on VCD_SCN_Variantencodierung_VGS_73. The byte edit is not adopted. Accessed 2026-11-11.

Rendered revisions

Open each version to inspect formatting, tables and photographs.

Revision 2: Mercedes Vediamo

An engineering application, not XENTRY

Vediamo is a Mercedes-Benz engineering diagnostic application. It is not XENTRY Diagnosis and it is not DAS. Dealer guided tests, workshop information and online commissioning remain the factory workshop path described on the factory diagnostic equipment page. A workshop copy of Vediamo does not establish that an SCN or control-unit commissioning procedure can be completed offline.

The version 05.00 handbook, dated September 2012 and identified as Mercedes-Benz PWT/VEP, expands the name as Verteilte Diagnose Anwendung für Motoren, a distributed diagnostic application for engines. The same introduction says the program is no longer limited to engine control units. That handbook is an internal document. The wording here is taken from its introduction as reproduced outside Mercedes-Benz, including copies that preserve the German expansion and the PWT/VEP title-page identification. It is not a current public product page, and later unofficial builds are not treated as part of that 2012 text.

CAESAR, DIOGENES and the files they use

The handbook places Vediamo in the CAESAR/DIOGENES process chain. CAESAR is the communication platform: the diagnostic server talks to the selected interface through CAESAR drivers. DIOGENES is the diagnostic-data source. The handbook names three file roles that matter when identifying a dataset:

  • CBF, the DIOGENES diagnostic description for a control unit.
  • CCF, a coding file.
  • CFF, the CAESAR flash container. The handbook says programming from this application uses CFF rather than a raw BIN, HEX or S19 file directly.

Those names identify data formats in the engineering chain. They are not a procedure for building a flash file or for writing one to a vehicle.

The 2012 introduction says diagnosis is available over K-line and CAN, and lists the protocols RTMD+, MBISO, KWFB, KW2000 and UDS. It gives Part A, Part C and Part Y as examples of CAESAR communication hardware, and the hardware section also names Part W as SDconnect and Part P as an eCom/MVCI device. Which of those interfaces a particular installation actually supports has to be read from that installation. The same introduction says later versions were intended to move onto MVCI and to support ODX. That is a 2012 statement about intended later versions, not a description of every copy in circulation.

What the handbook says the software contains

Vediamo is a client-server application. The handbook’s module list includes a diagnostic server (DiagServer), a start centre, a system-configuration tool, and Ecoute as the interactive diagnostic client. It also describes Java programs, logging and simulation when no interface is connected. The functions named for Ecoute include control-unit selection, diagnostic services, fault memory, a quick test, variant coding, flash programming and OBD. Those are engineering operations against the loaded diagnostic data. Menus and available services change with the CBF and the control unit; the handbook does not make every service available on every Mercedes road car.

This page does not include a Vediamo screenshot. A verified image from Mercedes-Benz or from the handbook file itself was not used, and reseller demonstrations are not a substitute.

What the circulating guides mean by coding

The handbook names variant coding as an Ecoute function. The guides that circulate outside Mercedes are workshop blogs and saved Ecoute printouts, not a Mercedes procedure. For 722.9 they keep returning to a CBF named VGSNAG2 and to coding domains whose names contain VCD_SCN_Variantencodierung. The gearbox-specific claims, and where those guides disagree with each other, are on the 722.9 SCN page.

Read as a set, the guides are describing three different operations and calling all of them Vediamo coding:

  • Select or restore a string the CBF already understands. Ecoute can show the variants parameterised for a domain. A 6 April 2020 guide shows putting a previously saved coding string back through the manual-coding field of VCD_SCN_Variantencodierung_VGS_73, then writing it and using a hard reset if that CBF offers one. The same page treats restoring saved EEPROM blocks as a separate, block-by-block paste. Restoring a string that was read from that controller is not the same thing as calculating a new one.
  • Edit the hexadecimal string by hand. A 21 July 2022 blog treats the VGSNAG2 SCN string as 42 bytes, assigns shift-program choices to bits, and says those bits sit in a different byte for software 0401 than for 0403. It gives yet another map for the 722.6 files EGS52 and EGS53. A Russian workshop page makes a further one-byte claim for a CBF it calls VGS4NAG2. The byte positions are not copied here. They already change inside a single blog when the software option changes, and this wiki has not checked them against a CBF or a vehicle.
  • Swap in a modified CBF. Other posts describe a CBF edited so that a VGS2 personalisation clear, which the standard file does not offer, can be called. Their authors limit that claim to part A 033 545 73 32 and say it does not apply to VGS3 part A 003 446 03 10. That is a change to the diagnostic description. The modification is not described here and the file is not hosted.

None of the three is the DAS or XENTRY commissioning path. A domain that Vediamo can write does not show that the valve body, the software and the vehicle record belong together. Mercedes already documents limp-home and harsh engagement after 722.9 programming or SCN coding; see the 722.9 page.

How this differs from DTS Monaco and from dealer diagnosis

DTS Monaco is a Softing product aimed at ODX diagnostic databases. Vediamo, in the 2012 handbook, is the Mercedes CAESAR/DIOGENES application. Public Mercedes development advertisements show DTS Monaco in current engineering work. They do not say that Monaco replaced Vediamo, and this page does not invent that handover.

XENTRY and DAS present guided workshop tests and, where the account and the vehicle allow it, control-unit commissioning. Vediamo presents the diagnostic services described in the engineering data. Sellers who advertise Vediamo as an unrestricted offline substitute for online coding are going beyond what the handbook introduction establishes. Variant coding, SCN and flashing are distinguished on the SCN coding page.

Sources

Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.

Revision 2: Mercedes Vediamo

An engineering application, not XENTRY

Vediamo is a Mercedes-Benz engineering diagnostic application. It is not XENTRY Diagnosis and it is not DAS. Dealer guided tests, workshop information and online commissioning remain the factory workshop path described on the factory diagnostic equipment page. A workshop copy of Vediamo does not establish that an SCN or control-unit commissioning procedure can be completed offline.

The version 05.00 handbook, dated September 2012 and identified as Mercedes-Benz PWT/VEP, expands the name as Verteilte Diagnose Anwendung für Motoren, a distributed diagnostic application for engines. The same introduction says the program is no longer limited to engine control units. That handbook is an internal document. The wording here is taken from its introduction as reproduced outside Mercedes-Benz, including copies that preserve the German expansion and the PWT/VEP title-page identification. It is not a current public product page, and later unofficial builds are not treated as part of that 2012 text.

CAESAR, DIOGENES and the files they use

The handbook places Vediamo in the CAESAR/DIOGENES process chain. CAESAR is the communication platform: the diagnostic server talks to the selected interface through CAESAR drivers. DIOGENES is the diagnostic-data source. The handbook names three file roles that matter when identifying a dataset:

  • CBF, the DIOGENES diagnostic description for a control unit.
  • CCF, a coding file.
  • CFF, the CAESAR flash container. The handbook says programming from this application uses CFF rather than a raw BIN, HEX or S19 file directly.

Those names identify data formats in the engineering chain. They are not a procedure for building a flash file or for writing one to a vehicle.

The 2012 introduction says diagnosis is available over K-line and CAN, and lists the protocols RTMD+, MBISO, KWFB, KW2000 and UDS. It gives Part A, Part C and Part Y as examples of CAESAR communication hardware, and the hardware section also names Part W as SDconnect and Part P as an eCom/MVCI device. Which of those interfaces a particular installation actually supports has to be read from that installation. The same introduction says later versions were intended to move onto MVCI and to support ODX. That is a 2012 statement about intended later versions, not a description of every copy in circulation.

What the handbook says the software contains

Vediamo is a client-server application. The handbook’s module list includes a diagnostic server (DiagServer), a start centre, a system-configuration tool, and Ecoute as the interactive diagnostic client. It also describes Java programs, logging and simulation when no interface is connected. The functions named for Ecoute include control-unit selection, diagnostic services, fault memory, a quick test, variant coding, flash programming and OBD. Those are engineering operations against the loaded diagnostic data. Menus and available services change with the CBF and the control unit; the handbook does not make every service available on every Mercedes road car.

This page does not include a Vediamo screenshot. A verified image from Mercedes-Benz or from the handbook file itself was not used, and reseller demonstrations are not a substitute.

What the circulating guides mean by coding

The handbook names variant coding as an Ecoute function. The guides that circulate outside Mercedes are workshop blogs and saved Ecoute printouts, not a Mercedes procedure. For 722.9 they keep returning to a CBF named VGSNAG2 and to coding domains whose names contain VCD_SCN_Variantencodierung. The gearbox-specific claims, and where those guides disagree with each other, are on the 722.9 SCN page.

Read as a set, the guides are describing three different operations and calling all of them Vediamo coding:

  • Select or restore a string the CBF already understands. Ecoute can show the variants parameterised for a domain. A 6 April 2020 guide shows putting a previously saved coding string back through the manual-coding field of VCD_SCN_Variantencodierung_VGS_73, then writing it and using a hard reset if that CBF offers one. The same page treats restoring saved EEPROM blocks as a separate, block-by-block paste. Restoring a string that was read from that controller is not the same thing as calculating a new one.
  • Edit the hexadecimal string by hand. A 21 July 2022 blog treats the VGSNAG2 SCN string as 42 bytes, assigns shift-program choices to bits, and says those bits sit in a different byte for software 0401 than for 0403. It gives yet another map for the 722.6 files EGS52 and EGS53. A Russian workshop page makes a further one-byte claim for a CBF it calls VGS4NAG2. The byte positions are not copied here. They already change inside a single blog when the software option changes, and this wiki has not checked them against a CBF or a vehicle.
  • Swap in a modified CBF. Other posts describe a CBF edited so that a VGS2 personalisation clear, which the standard file does not offer, can be called. Their authors limit that claim to part A 033 545 73 32 and say it does not apply to VGS3 part A 003 446 03 10. That is a change to the diagnostic description. The modification is not described here and the file is not hosted.

None of the three is the DAS or XENTRY commissioning path. A domain that Vediamo can write does not show that the valve body, the software and the vehicle record belong together. Mercedes already documents limp-home and harsh engagement after 722.9 programming or SCN coding; see the 722.9 page.

How this differs from DTS Monaco and from dealer diagnosis

DTS Monaco is a Softing product aimed at ODX diagnostic databases. Vediamo, in the 2012 handbook, is the Mercedes CAESAR/DIOGENES application. Public Mercedes development advertisements show DTS Monaco in current engineering work. They do not say that Monaco replaced Vediamo, and this page does not invent that handover.

XENTRY and DAS present guided workshop tests and, where the account and the vehicle allow it, control-unit commissioning. Vediamo presents the diagnostic services described in the engineering data. Sellers who advertise Vediamo as an unrestricted offline substitute for online coding are going beyond what the handbook introduction establishes. Variant coding, SCN and flashing are distinguished on the SCN coding page.

Sources

Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.