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Home >> Mercedes Benz >> 2014 >> ML350 Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Mixture Formation - 166 Chassis - 1 Of 4 >> Basic Knowledge >> Overview of system components for gasoline injection and ignition system with direct injection >> Overview of system components for gasoline injection and ignition system with direct injection - GF07.70-P-9998MMG

Overview of system components for gasoline injection and ignition system with direct injection - GF07.70-P-9998MMG

ENGINE 157.9, 276.9, 278.9 in MODEL 166 up to model year 2016 

Fig 1: Overview Of Gasoline Injection And Ignition System Components With Direct Injection - Shown On Model 166.0
G09981716Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from top front (except code 920 (Gasoline direct injection with stratified charge) (except code 468 (ACTIVE CURVE SYSTEM)) 

Fig 2: View Of Engine 276.9 (Top Front)
G09981717Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from top front (for code 920 (Gasoline direct injection with stratified charge) except code 468 (ACTIVE CURVE SYSTEM)) 

Fig 3: View Of Engine Components (276.9 Top Front)
G09981718Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from top front 

Fig 4: View Of Engine Components (276.9 Top Front)
G09981719Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from top front 

Fig 5: View Of Engine Components (276.9 Top Front)
G09981720Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from rear (for code 920 (Gasoline direct injection with stratified charge)) 

Fig 6: View Of Engine Components (276.9 Rear)
G09981721Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from rear (for code 920 (Gasoline direct injection with stratified charge)) 

Fig 7: View Of Engine Components (276.9 Rear)
G09981722Courtesy of MERCEDES-BENZ USA

View of engine 276.9 from below 

Fig 8: View Of Engine Components (276.9)
G09981723Courtesy of MERCEDES-BENZ USA

Exhaust system shown on engine 276.9 (with code 920 (Gasoline direct injection with stratified charge)) 

Fig 9: View Of Exhaust System Components
G09981724Courtesy of MERCEDES-BENZ USA

View of engine 278.9 from top front 

Fig 10: View Of Engine Components (278.9 Top Front)
G09981725Courtesy of MERCEDES-BENZ USA

View of engine 278.9 from top front 

Fig 11: View Of Engine Components (278.9 Top Front)
G09981726Courtesy of MERCEDES-BENZ USA

View of engine 278.9 from top front 

Fig 12: View Of Engine Components (278.9 Top Front)
G09981727Courtesy of MERCEDES-BENZ USA

View of engine 278.9 from rear right 

Fig 13: View Of Engine Components (278.9 Rear Right)
G09981728Courtesy of MERCEDES-BENZ USA

View of engine 278.9 from below 

Fig 14: View Of Engine Components (278.9)
G09981729Courtesy of MERCEDES-BENZ USA

View of engine 157.9 from below 

Fig 15: View Of Engine Components (157.9)
G09981730Courtesy of MERCEDES-BENZ USA

View of cooler from the rear (for engine 276.9 with radiator shutters) 

Fig 16: View Of Cooler Components (Rear)
G09981731Courtesy of MERCEDES-BENZ USA

Phantom view of the fuel tank (except code 494 (USA version)) 

Fig 17: View Of Fuel Tank Components
G09981732Courtesy of MERCEDES-BENZ USA

Phantom view of fuel tank (with CODE 494 (USA version)) 

Fig 18: View Of Fuel Tank Components
G09981733Courtesy of MERCEDES-BENZ USA

Phantom view of fuel tank (for code 494 (USA version)) (for code 929 (Engine for ethanol fuel)) 

Fig 19: View Of Fuel Tank Components
G09981734Courtesy of MERCEDES-BENZ USA

Shown on low-temperature circuit (with engine 157.9, 278.9) 

Fig 20: Charge Air Cooler Circulation Pump Flow Diagram
G09981735Courtesy of MERCEDES-BENZ USA

Shown on engine compartment with engine 278.9 

Fig 21: Identifying High-Temperature/Low-Temperature Circuit Switchover Valve
G09981736Courtesy of MERCEDES-BENZ USA
Fig 22: Identifying Upper Control Panel Control Unit And Eco Start/Stop Function Button
G09981737Courtesy of MERCEDES-BENZ USA

Shown: engine compartment fuse and relay module (F58) 

Fig 23: Identifying Engine Compartment Fuse And Relay Modules
G09981738Courtesy of MERCEDES-BENZ USA
  Component description for instrument cluster A1 GF54.30-P-6000GR
  Supplemental restraint system control unit, component description N2/10 GF91.60-P-4080GR
  Component description for ME-SFI (ME) control unit ENGINE 276.9 in MODEL 166
up to model year 2016
N3/10
GF07.61-P-6000MMG 
  Component description for ME-SFI (ME) control unit ENGINE 157.9, 278.9 in MODEL 166
up to model year 2016
N3/10
GF07.61-P-6000MMR 
  SAM control unit, component description N10 GF54.21-P-4157GR
  Rear control unit, component description N10/8 GF54.21-P-4134GR
  Component description for automatic air conditioning control and operating unit N22/7 GF83.40-P-3000GR
  Component description for Electronic Stability Program control unit N30/4 GF42.45-P-5119GR
  Component description for NOx sensor control unit ENGINE 276.9 in MODEL 166
up to model year 2016
with CODE 920 (Direct petrol injection with stratified charging)
N37/5, N37/6
GF14.40-P-3024MMG
  AIRmatic control unit, component description MODEL 166 with ENGINE 157.9, 276.9, 278.9
up to model year 2016
with CODE 489 (AIRMATIC (air suspension with level adjustment and adaptive damping system (ADS)))
N51/3
GF32.22-P-5109GR
  Component description for video and radar sensor system control unit MODEL 166 with ENGINE 157.9, 276.9, 278.9
up to model year 2016
with CODE 233 (DISTRONIC PLUS)
with CODE 237 (Active Blind Spot Assist)
with CODE 238 (Active lane keeping Assist)
N62/2
GF30.30-P-3304GR
  Component description for left front door control unit N69/1 GF72.29-P-6001GR
  Upper control panel control unit, component description N72/1 GF54.21-P-6040GR
  Component description for the electronic ignition lock control unit N73 GF80.57-P-6001GR
  Component description for steering column tube module control unit N80 GF54.21-P-6051GR
  Component description for fuel pump control unit ENGINE 276.9, 278.9 in MODEL 166
up to model year 2016
N118
GF47.40-P-2001MMG
  Component description for fuel pump control unit ENGINE 157.9 in MODEL 166
up to model year 2016
N118
GF47.40-P-2001MMR
  Component description for fully integrated transmission control unit ENGINE 157.9 in MODEL 166 with TRANSMISSION 722.9
up to model year 2016
ENGINE 276.9 in MODEL 166 with TRANSMISSION 722.9
up to model year 2016
ENGINE 278.9 in MODEL 166 with TRANSMISSION 722.9
up to model year 2016
Y38n4
GF27.60-P-5165AHA
  Table of contents for function description of gasoline injection and ignition system with direct injection ENGINE 276.9 in MODEL 166
up to model year 2016
GF07.70-P-0998MMG 
  Table of contents for function description of gasoline injection and ignition system with direct injection ENGINE 157.9, 278.9 in MODEL 166
up to model year 2016
GF07.70-P-0998MMR