diff --git a/firmware/controllers/algo/auto_generated_commonenum.cpp b/firmware/controllers/algo/auto_generated_commonenum.cpp
index 3651731756..2304103d9a 100644
--- a/firmware/controllers/algo/auto_generated_commonenum.cpp
+++ b/firmware/controllers/algo/auto_generated_commonenum.cpp
@@ -1,6 +1,6 @@
 #include "global.h"
 #include "rusefi_enums.h"
-// was generated automatically by rusEFI tool  from rusefi_enums.h // by enum2string.jar tool on Sat Sep 11 23:26:26 EDT 2021
+// was generated automatically by rusEFI tool  from rusefi_enums.h // by enum2string.jar tool on Fri Sep 17 23:02:58 EDT 2021
 // see also gen_config_and_enums.bat
 
 
@@ -428,8 +428,12 @@ case HELLEN_121_VAG_V6_CYL:
   return "HELLEN_121_VAG_V6_CYL";
 case HELLEN_121_VAG_VR6_CYL:
   return "HELLEN_121_VAG_VR6_CYL";
-case HELLEN_128_MERCEDES:
-  return "HELLEN_128_MERCEDES";
+case HELLEN_128_MERCEDES_4_CYL:
+  return "HELLEN_128_MERCEDES_4_CYL";
+case HELLEN_128_MERCEDES_6_CYL:
+  return "HELLEN_128_MERCEDES_6_CYL";
+case HELLEN_128_MERCEDES_8_CYL:
+  return "HELLEN_128_MERCEDES_8_CYL";
 case HELLEN_134_BMW:
   return "HELLEN_134_BMW";
 case HELLEN_154_HYUNDAI:
diff --git a/firmware/controllers/algo/engine_configuration.cpp b/firmware/controllers/algo/engine_configuration.cpp
index a3ce762218..76012cf6ee 100644
--- a/firmware/controllers/algo/engine_configuration.cpp
+++ b/firmware/controllers/algo/engine_configuration.cpp
@@ -858,7 +858,9 @@ void resetConfigurationExt(configuration_callback_t boardCallback, engine_type_e
 // todo: is it time to replace MICRO_RUS_EFI, PROTEUS, PROMETHEUS_DEFAULTS with MINIMAL_PINS? maybe rename MINIMAL_PINS to DEFAULT?
 	case PROTEUS_DEFAULTS:
 	case PROMETHEUS_DEFAULTS:
-	case HELLEN_128_MERCEDES:
+	case HELLEN_128_MERCEDES_4_CYL:
+	case HELLEN_128_MERCEDES_6_CYL:
+	case HELLEN_128_MERCEDES_8_CYL:
 	case MINIMAL_PINS:
 		// all basic settings are already set in prepareVoidConfiguration(), no need to set anything here
 		// nothing to do - we do it all in setBoardDefaultConfiguration
diff --git a/firmware/controllers/algo/rusefi_enums.h b/firmware/controllers/algo/rusefi_enums.h
index 738c1f9b12..d9ab4ab345 100644
--- a/firmware/controllers/algo/rusefi_enums.h
+++ b/firmware/controllers/algo/rusefi_enums.h
@@ -112,7 +112,7 @@ typedef enum {
 
 	CAMARO_4 = ET_CAMARO,
 
-	HELLEN_128_MERCEDES = ET_HELLEN_128_MERCEDES,
+	HELLEN_128_MERCEDES_4_CYL = ET_HELLEN_128_MERCEDES_4_CYL,
 
 	MRE_SUBARU_EJ18 = ET_MRE_SUBARU_EJ18,
 
@@ -212,6 +212,11 @@ typedef enum {
 
 	HELLEN_NB2_36 = ET_HELLEN_NB2_36,
 
+	HELLEN_128_MERCEDES_6_CYL = ET_HELLEN_128_MERCEDES_6_CYL,
+
+	HELLEN_128_MERCEDES_8_CYL = ET_HELLEN_128_MERCEDES_8_CYL,
+
+
 	/**
 	 * this configuration has as few pins configured as possible
 	 */
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 5749a139b7..3821d2be6a 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -492,7 +492,6 @@ end_struct
 #define ET_VW_ABA 32
 #define ET_HELLEN_NA6 34
 #define ET_CAMARO 35
-#define ET_HELLEN_128_MERCEDES 36
 #define ET_HELLEN_128_MERCEDES_4_CYL 36
 #define ET_MRE_SUBARU_EJ18 37