| A1 | Instrument cluster | 20L | PE54.30 |
| A2 | Radio | 15L | PE82.60 |
| A2/56 | Navigation unit and radio | 10L | PE82 |
| A35/8 | Tele Aid control module | 17L | PE82 |
| A40/3 | COMAND actuation, display and control unit | 12L | PE82 |
| G1 | Battery | 26L | |
| K40/2 | Driver-side fuse and relay module box | 27L 44L |
|
| K40/4 | Passenger-side fuse and relay module box | 31L | |
| K40/4f1 | Fuse, circuit 30z | 32L | |
| K40/4k1 | Polarity protection relay | 29L | |
| N2/2 | SRS control module | 19L | PE91.60 |
| N3/10 | ME-SFI control module | 40L | PE07.61 |
| N15/3 | ETC control module | 2L 5L |
PE27.19 |
| N15/5 | Electronic selector lever module control module | 4L | PE27.19 |
| N22 | AAC pushbutton control module | 46L | PE83.40 |
| N47-1 | ASR/SPS control module | 21L | PE42.40 |
| N47-5 | ESP/BAS control module | 23L 24L |
PE42.45 |
| N48 | BAS control module | 14L | PE42.31 |
| N62 | PTS control module | 9L | PE54.65 |
| N71 | Headlamp range adjustment control module | 7L | PE82.10 |
| N73 | Electronic ignition-starter switch (EIS) control module | 45A | PE80 |
| U8 | Valid for ASR | 21G | |
| U147 | Valid for Bosch system | 22H | |
| U148 | Valid for Teves system | 24H | |
| U163 | Valid for Brake Assist (BAS) | 13F | |
| U201 | Valid for Tele Aid | 16F | |
| U507 | Valid for ESP | 22G 24G |
|
| U508 | Valid for Xenon headlamps | 6F | |
| U538 | Valid for PTS | 8F | |
| U631 | Valid for version with COMAND | 11F | |
| U652 | Valid for audio 30 1-DIN Navigation | 10F | |
| W16/4 | Ground (output ground - component compartment - right) | 34E | |
| W16/6 | Ground (electronics ground - component compartment - right) | 21E | |
| X11/4 | Diagnostic data link connector | 4A 12A 20A 28A 36A |
|
| X11/22 | Diagnostic module (OBD II) generic scan tool connector | 34L | |
| X22/2 | AT/engine connector | 1H 3H |
|
| X43/3 | REST/CL connector, circuit 30Z | 25E | |
| Z3/18 | Circuit 15 connector sleeve (HFM-SFI, interior/engine) | 39E | |
| Z3/26 | Circuit 15 (unfused) connector sleeve | 26G | |
| Z4/4 | Circuit 30Z connector sleeve (solder joint in harness) | 33E | |
| Z7/48 | Circuit 87D2 connector sleeve | 41E |