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Home >> Mercedes Benz >> 2020 >> GLC300 Base >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Electrical Drive System - 253 Chassis >> Basic Knowledge >> Overview Of System Components, Hybrid Drive System - GF08.30-P-9999RFH

Overview Of System Components, Hybrid Drive System - GF08.30-P-9999RFH

Engine 274.920 in model 205.047/147/247 

Engine 274.920 in model 205.053/054/253 

Engine 274.920 in model 253.353/953 

Engine 274.920 in model 253.354/954 

Engine 651.921 in model 205.012/212 

Engine 654.920 in model 205.013/213 

G14547309Courtesy of MERCEDES-BENZ USA

Shown: Model 205.0 

IMPORTANT Model 253.353/953

Instead of charger (N83/5), AC charger for high-voltage battery (N83/11) is installed.

View of vehicle interior for model 205 

G14547310Courtesy of MERCEDES-BENZ USA
G14547311Courtesy of MERCEDES-BENZ USA

Shown on model 205.047 

G14547312Courtesy of MERCEDES-BENZ USA

Shown on model 205.047 

G14547313Courtesy of MERCEDES-BENZ USA

Shown on model 253.954 

G14547314Courtesy of MERCEDES-BENZ USA

Shown on model 253.954 

IMPORTANT Model 253.353/953

Instead of charger (N83/5), AC charger for high-voltage battery (N83/11) is installed.

IMPORTANT Model 205.047/147/247, 253.353/953

DC/DC converter

A DC/DC converter is integrated in the power electronics control unit, which converts the high voltage direct voltage (primary voltage) into 12 V direct voltage (secondary voltage) and vice versa and transfers these between the high voltage on-board electrical system and the 12 V on-board electrical system.

IMPORTANT Model 253.354/954

DC/DC converter control unit

The DC/DC converter control unit is installed in the vehicle as a separate component. The DC/DC converter control converts high-voltage direct voltage (primary voltage) into 12-V direct voltage (secondary voltage) and transfers these between the high voltage on-board electrical system and the 12-V on-board electrical system.

Sound generator, shown on model 253.9 with code B53 (External noise sound generator for hybrids and EVs) 

G14547315Courtesy of MERCEDES-BENZ USA

Low-temperature circuit 1 

IMPORTANT The low-temperature circuit temperature sensor and the low-temperature circuit switchover valve primarily serve the function charge air cooling.

View of low-temperature circuit 1 (model 205.012/212) 

G14547316Courtesy of MERCEDES-BENZ USA

View of low-temperature circuit 1 (shown on model 205.047/147/247) 

G14547317Courtesy of MERCEDES-BENZ USA

View of low-temperature circuit 1 (shown on model 253.353/953) 

G14547318Courtesy of MERCEDES-BENZ USA

Shown on lower control panels (except model 253, model 205 up to model year 2016) 

G14547319Courtesy of MERCEDES-BENZ USA

Shown on lower control panels (model 253, model 205 as of model year 2016) 

G14547320Courtesy of MERCEDES-BENZ USA

View of accelerator pedal module (model 205.047/147/247, 253.353/354/953/954) 

G14547321Courtesy of MERCEDES-BENZ USA

IMPORTANT A stronger and therefore longer electric machine is installed. This has an output of 50 kW or 80 kW and is 33 mm longer. This results in a longer transmission bell housing. There are no additional installation changes on the transmission.

IMPORTANT The temperature sensor of the electric machine is located within the winding of the electric machine.

Sectional view of transmission bell housing (model 253.353/953) 

G14547322Courtesy of MERCEDES-BENZ USA

IMPORTANT The temperature sensor of the electric machine is located within the winding of the electric machine.

Sectional view of transmission bell housing (model 205.012/212) 

G14547323Courtesy of MERCEDES-BENZ USA

IMPORTANT The temperature sensor of the electric machine is located within the winding of the electric machine.

Sectional view of transmission bell housing (model 205.047/147/247, model 253.354/954) 

G14547324Courtesy of MERCEDES-BENZ USA
G14547325Courtesy of MERCEDES-BENZ USA

Sectional view of automatic transmission (model 253.353/953) 

Sectional view of automatic transmission (model 205.012/212) 

G14547326Courtesy of MERCEDES-BENZ USA
  Component description for instrument cluster A1 GF54.30-P-6000RF
  Component description for electric refrigerant compressor Engine 274.920 in model 205.047/053/054/147/247/253, 253.353/354/953/954
Engine 651.921 in model 205.012/212
Engine 654.920 in model 205.013/213
A9/5		 GF83.55-P-2110RFH
  Head unit, component description Engine 274.920 in model 205.047/147/247
up to model year 2019
with code 520 (Audio 20 USB)
except code 522 (Audio 20 radio)
except code 531 (COMAND APS)
Engine 274.920 in model 253.353/354/953/954
with code 520 (Audio 20 USB)
except code 522 (Audio 20 radio)
except code 531 (COMAND APS)
Engine 651.921 in model 205.012/212
up to model year 2019
with code 520 (Audio 20 USB)
except code 522 (Audio 20 radio)
except code 531 (COMAND APS)
A26/17		 GF82.85-P-3140RF
    Engine 274.920 in model 205.047/147/247
up to model year 2019
with code 522 (Audio 20 radio)
except code 520 (Audio 20 USB)
except code 531 (COMAND APS)
Engine 274.920 in model 253.353/354/953/954
with code 522 (Audio 20 radio)
except code 520 (Audio 20 USB)
except code 531 (COMAND APS)
Engine 651.921 in model 205.012/212
up to model year 2019
with code 522 (Audio 20 radio)
except code 520 (Audio 20 USB)
except code 531 (COMAND APS)
A26/17		 GF82.85-P-3140RFA
    Engine 274.920 in model 205.047/147/247, 253.353/354/953/954
with code 531 (COMAND APS)
except code 520 (Audio 20 USB)
except code 522 (Audio 20 radio)
Engine 651.921 in model 205.012/212
with code 531 (COMAND APS)
except code 520 (Audio 20 USB)
except code 522 (Audio 20 radio)
A26/17		 GF82.85-P-3140RFB
  Component description for Audio/COMAND control panel Engine 274.920 in model 205.047/147/247, 253.954
up to model year 2019
Engine 274.920 in model 253.354
up to model year 2020
Engine 651.921 in model 205.012/212
up to model year 2019
Engine 654.920 in model 205.013/213
as of model year 2019
except code 446 (Touchpad only)
A40/9		 GF54.21-P-4501RF
  Touchpad, component description Engine 274.920 in model 205.047/053/054/147/247/253, 253.353/354/953/954
as of model year 2020
with code 446 (Touchpad only)
A105		 GF54.21-P-4511RF
  Sound generator, component description Engine 274.9 in model 205.047/147/247, 253.353/354/953/954
with code B53 (External noise sound generator for hybrids and EV)
H4/16, H4/135		 GF49.10-P-2003RFH
  Supplemental restraint system control unit, component description N2/10 GF91.60-P-4080RF
  Component description for CDI control unit Engine 651.921 in model 205.012/212
N3/9		 GF07.16-P-6000OLC
  Component description for ME-SFI (ME) control unit Engine 274.9 in model 205.047/053/054/147/247/253, 253.353/354/953/954
N3/10		 GF07.61-P-6000MRH
  Component description for front SAM control unit N10/6 GF54.21-P-7010RF
  Component description for rear SAM control unit N10/8 GF54.21-P-7030RF
  Climate control control unit, component description N22/1 GF83.40-P-2250RF
  Component description for Electronic Stability Program control unit N30/4 GF42.45-P-5119RFH
  AIRMATIC control unit, component description Engine 274.920 in model 205.047/147/247 with code 483 (ADVANCED AGILITY package) with code 489 (AIRMATIC Dual Control/semi-active air suspension)
Engine 651.921 in model 205.012/212 with code 483 (ADVANCED AGILITY package) with code 489 (AIRMATIC Dual Control/semi-active air suspension)
N51/3		 GF32.22-P-5110RF
  AIR BODY CONTROL control unit, component description Engine 274.920 in model 253.353/354/953/954 with code 489 (AIR BODY CONTROL)
N51/3		 GF32.22-P-5111RF
  Component description for radar sensors control unit Engine 274.920 in model 205.047/147/247 up to model year 2019 with code 23P (Drive package)
Engine 274.920 in model 253.354/954 up to model year 2020 with code 23P (Drive package)
Engine 651.921 in model 205.012/212 up to model year 2019 with code 23P (Drive package)
N62/1		 GF30.30-P-3301RF
  Mercedes-Benz Intelligent Drive control unit, component description Engine 274.920 in model 253.353/953 as of model year 2020 with code 23P (Drive package)
N62/4		 GF30.30-P-3312RFM
  Component description for left front door control unit N69/1 GF72.29-P-6001RF
  Lower control panel, component description N72/4, N72/5 GF54.25-P-4270RF
  Component description for the electronic ignition lock control unit Engine 274.920 in model 205.047/147/247
up to model year 2019
Engine 274.920 in model 253.354
up to model year 2020
Engine 274.920 in model 253.954
up to model year 2020
Engine 651.921 in model 205.012/212
up to model year 2019
N73		 GF80.57-P-6001RF
    Engine 274.920 in model 253.353/953
as of model year 2020
N73		 GF80.57-P-6001RFM
  Component description for battery management system control unit N82/2 GF54.10-P-3012RFH
  Component description for DC/DC converter control unit Engine 274.920 in model 253.354/954
N83/1		 GF54.10-P-3006RFH
  High-voltage charger control unit, component description Engine 274.920 in model 205.047/147/247, 253.353/354/953/954
N83/5, N83/11		 GF08.20-P-2000RFH 
  Component description for fuel pump control unit Engine 651.9 in model 205.012/212
N118		 GF47.40-P-2001OLC
    Engine 274.9 in model 205.047/053/054/147/247/253, 253.353/354/953/954
N118		 GF47.40-P-2001MRH
  Drivetrain control unit, component description Engine 651.9 in model 205.012/212
N127		 GF54.21-P-2141OLC
    Engine 274.9 in model 205.047/053/054/147/247/253, 253.353/354/953/954
N127		 GF54.21-P-2141MRH
  Component description for power electronics control unit N129/1 GF08.20-P-1001RFH 
  Component description for fully integrated transmission control unit Engine 274.920 in model 205.047/147/247, 253.354/954 with transmission 724.2
Engine 651.921 in model 205.012/212 with transmission 724.2
Y38n4		 GF27.60-P-5165RFH
    Engine 274.920 in model 253.353/953 with transmission 725.0
Y38n4		 GF27.60-P-5165ANI
  Table of contents for function description - hybrid drive system   GF08.30-P-0999RFH 
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