Diagnostic Aids

GF00.19-P-0001-03CA 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 or code (528) COMAND incl. DVD changer or code (512) COMAND APS with DVD changer)
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)
N10/1 Front SAM control unit with fuse and relay module N10/2 Rear SAM control unit with fuse and relay module
N22/6 Rear control unit
N22/7 Automatic air conditioning control and operating unit
N25/7 AIRSCARF system control unit (model 207.4 with code (403) AIRSCARF system)
N28/1 Trailer recognition control unit (with code (550) trailer hitch)
N32/1 Driver seat control unit (with code (275) Memory package (driver seat, steering column, mirrors))
N32/2 Front passenger seat control unit (with code (242) Electrically adjustable front passenger seat with memory)
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
N69/5 Keyless-Go control unit (with code (889) Keyless-Go)
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)
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
A89 DISTRONIC electric controller unit (with code (233) DISTRONIC PLUS)
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 (as of 1.6.11 with code (237) Active Blind Spot Assist)
B29/7 Right rear bumper radar sensor (as of 1.6.11 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 integral curve illumination or code (616) Bi-xenon headlamp unit with asymmetric integral curve illumination or code (621) ILS (left-hand traffic) or code (622) ILS (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)
N30/4 Electronic Stability Program control unit (without code (233) DISTRONIC PLUS)
N30/7 Premium Electronic Stability Program control unit (vehicles with code (233) DISTRONIC PLUS)
N37/5 Left nitrogen oxides control unit (with engine 272.98), left NOx sensor control unit (with engine 276.9)
N37/6 Right nitrogen oxides control unit (with engine 272.98), right NOx sensor control unit (with engine 276.9)
N51/5 Adaptive damping system control unit (with code (483) ADVANCED AGILITY package)
N62 PARKTRONIC button (with code (220) PARKTRONIC or code (230) Exclusive parking assist)
N62/1 Radar sensors control unit (up to 31.5.11 with code (233) DISTRONIC PLUS)
N62/2 Video and radar sensor system control unit (as of 1.6.11 with code (233) DISTRONIC PLUS, 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 monitoring control unit (with code (475) Tire pressure monitoring (Premium) manufactured by Schrader)
N118 Fuel pump control unit
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