Diagnostic Aids

GF00.19-P-0001-03FL Overall Network (GVN) Block Diagram







A1 Instrument cluster
A2 Radio (with code (523) MB Audio 20 radio or code (510) Audio 20 with CD changer)
A2/56 Radio with auto pilot system (with code ( 525) MB Audio 50 APS radio or code (511) Audio 50 APS with DVD changer)
A6n1 Stationary heater control unit (with code (228) Stationary heater)
A40/3 COMAND controller unit (with code (527) COMAND APS with single DVD drive (with navigation) or code (512) COMAND APS with DVD changer or code (528) COMAND incl. DVD changer)
A40/4 DVD player (with code (864) Rear entertainment system)
A40/5 Left rear display (with code (864) Rear entertainment system)
A40/6 Right rear display (with code (864) Rear entertainment system)
A40/8 Audio/COMAND display
A40/9 Audio/COMAND control panel
A90/1 TV tuner (analog/digital) (with code (863) Digital/analog TV tuner )
A90/3 Digital TV tuner (with code (527) COMAND APS with single DVD drive (with navigation), and with code (498) Japan version
A98 Panoramic sliding roof control module (with code ( 413) Panoramic glass sunroof with top sliding sunroof)
M40/1 Pneumatic pump for dynamic multicontour seat (with code (432) Left and right dynamic multicontour seat)
N10/1 Front SAM control unit with fuse and relay module
N10/2 Rear SAM control unit with fuse and relay module
N22/7 Automatic air conditioning control and operating unit
N25/6 Rear seat heater control unit (with code (872) Electrically heated left and right rear seats)
N25/7 Steering wheel heater control unit (with code (443) Steering wheel heater)
N26/9 Special-purpose vehicle multifunction control unit (with code (965) Electrical preinstallation for rental vehicles)
N28/1 Trailer recognition control unit (with code (550) trailer hitch)
N32/1 Driver seat control unit (with code (275) Memory package for electrically adjustable front seats)
N32/2 Front passenger seat control unit (with code (275) Memory package for electrically adjustable front seats)
N32/19 Left front dynamic multicontour seat control unit (with code (432) Left and right dynamic multicontour seat)
N32/22 Right front dynamic multicontour seat control unit (with code (432) Left and right dynamic multicontour seat)
N40/3 Sound system amplifier control unit (with code (810) Sound system)
N66/2 Reversing camera control unit (with code (218) Reversing camera and code (498) Japan version)
N69/1 Left front door control unit
N69/2 Right front door control unit
N69/3 Left rear door control unit
N69/4 Right rear door control unit
N69/5 Keyless-Go control unit (with code (889) Keyless-Go)
N70 Overhead control panel control unit (with code (414) Power glass tilting/sliding sunroof)
N73 Electronic ignition switch control unit
N87/3 Digital Audio Broadcasting control unit (with code (537) Digital radio)
N87/5 Satellite digital audio radio (SDAR) control unit (as of 1.6.10 with code (536) SIRIUS satellite radio)
N87/8 SDAR/high definition tuner control unit (up to 31.5.10 with code (536) SIRIUS satellite radio)
N110 weight sensing system control unit (WSS) (with code (494) USA version)
N121 Trunk lid control unit (model 212.0 with code (881) Remote trunk closing (RTC [HDFS])
N121/1 Liftgate control unit (model 212.2)
N123/4 Emergency call system control unit (with code (359) TELE AID emergency call system)
N125/1 Media interface control unit (with code (518) Media interface)
CAN A Telematics CAN
CAN B Interior CAN
CAN D Diagnostic CAN
CAN E Chassis CAN
MOST Media Oriented System Transport







A1 Instrument cluster
A40/11 Multifunction camera (with code (238) Active Lane Keeping Assist, code (476) Automatic Lane Recognition, code (513) Speed Limit Assist or code (608) Adaptive Highbeam Assist)
A76 Left front reversible emergency tensioning retractor
A76/1 Right front reversible emergency tensioning retractor
A80 Intelligent servo module for DIRECT SELECT (with transmission 722.9)
A89 DISTRONIC electric controller unit (with code (233) DISTRONIC PLUS or code (237) Active Blind Spot Assist)
B24/15 Yaw rate, lateral and longitudinal acceleration sensor
B29/2 DISTRONIC (DTR) sensor, left front bumper (with code (233) DISTRONIC PLUS or code (237) Active Blind Spot Assist)
B29/3 DISTRONIC (DTR) sensor, right front bumper (with code (233) DISTRONIC PLUS or code (237) Active Blind Spot Assist)
B29/4 Left rear bumper intelligent radar sensor (as of 1.6.10 with code (234) Blind Spot Assist)
B29/5 Right rear bumper intelligent radar sensor (as of 1.6.10 with code (234) Blind Spot Assist)
B29/6 Left rear bumper radar sensor (with code (237) Active Blind Spot Assist)
B29/7 Right rear bumper radar sensor (with code (237) Active Blind Spot Assist)
E1n1 Left xenon light control unit (with code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi- xenon headlamp unit with integrated asymmetrical curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic))
E2n1 Right xenon light control unit (with code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi- xenon headlamp unit with integrated asymmetrical curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic))
N2/10 Supplemental restraint system control unit
N3/9 CDI control unit (with diesel engine)
N3/10 ME-SFI [ME] control unit (with gasoline engine)
N10/1 Front SAM control unit with fuse and relay module
N15/3 Electronic transmission-control control unit (on transmission 722.6)
N15/5 Electronic selector lever module control unit (with transmission 722.6)
N30/4 Electronic Stability Program control unit (without code (233) DISTRONIC PLUS, except model 212.074/077/274/277)
N30/7 Premium Electronic Stability Program control unit (with code (233) DISTRONIC PLUS or on model 212.074/077/274/277)
N37/5 Left nitrogen oxides control unit (with engine 272.98)
N37/6 Right nitrogen oxides control unit (with engine 272.98)
N37/7 Nitrogen oxides control unit downstream of diesel particulate filter (with engine 642.8 with code (U42) BlueTEC (SCR) diesel exhaust treatment)
N37/8 Nitrogen oxides control unit downstream of SCR catalytic converter (with engine 642.8 with code (U42) BlueTEC (SCR) diesel exhaust treatment)
N51/3 AIRmatic control unit (with code (489) AIRmatic (air suspension with continuously adjustable damping) or code (488) Steel/air suspension)
N62 Parking system control unit (with code (220) PARKTRONIC or code (230) Exclusive parking assist)
N62/1 Radar sensors control unit (up to 31.5.10 with code (233) DISTRONIC PLUS or with code (234) Blind Spot Assist)
N62/2 Video and radar sensor system control unit (as of 1.6.10 with code (233) DISTRONIC PLUS or with code (237) Active Blind Spot Assist or code (238) Active Lane Keeping Assist)
N73 Electronic ignition switch control unit
N80 Steering column module control unit
N88 Tire pressure monitor control unit (with code (475) Tire pressure monitor (Premium))
N89 Transmission oil auxiliary pump control unit (with code (B03) ECO start/stop function)
N97 Rear axle electronic level control control unit (model 212.2 without code (489) AIRmatic (air suspension with continuously adjustable damping) and without code (488) Steel/air suspension)
N101 Night View Assist control unit (for code (610) Night View Assist)
N118 Fuel pump control unit
N118/2 CNG control unit (with engine 271.958)
N118/5 AdBlue� control unit (with engine 642 with code (U42) BlueTEC diesel exhaust treatment (SCR))
N145 Transmission mode control unit (in model 212.074/077/274/277)
N150 DIRECT SELECT INTERFACE (in model 212.074/077/274/277)
Y3/8n4 Fully integrated transmission- control control unit (with transmission 722.9)
CAN B Interior CAN
CAN C Drive train CAN
CAN E Chassis CAN
CAN G Front end CAN
CAN H Vehicle dynamics CAN
CAN I Drive train sensor CAN
CAN S Sensor CAN