| No. | - | Current Flow Diagram designation | Nominal value | - | Function/component | Terminal |
| 1 | - | Fuse 1 on fuse holder A -SA1- | 10A | - | Heated driver seat regulator -E94- (up to December 2008) | Xa |
| Heated front passenger seat regulator -E95- (up to December 2008) |
| Heated driver seat control unit -J131- (up to December 2008) |
| Heated front passenger seat control unit -J132- (up to December 2008) |
| Seat heating switch illumination bulb -L44- (up to December 2008) |
| Glove compartment light -W6- |
| Driver side heated exterior mirror -Z4- (up to August 2009) |
| Front passenger side heated exterior mirror -Z5- (up to August 2009) |
| 2 | - | Fuse 2 on fuse holder A -SA2- | 10A | - | Hazard warning light switch -E3- | Xa |
| Turn signal relay -J1- |
| Hazard warning light system warning lamp -K6- |
| 3 | - | Fuse 3 on fuse holder A -SA3- | 5A | - | Switches and instruments illumination regulator -E20- | 58a |
| Fog light relay -J5- |
| Illumination regulator illumination bulb -L105- |
| 4 | - | Fuse 4 on fuse holder A -SA4- | 5A | - | Number plate light -X- | 58a |
| 5 | - | Fuse 5 on fuse holder A -SA5- | 7.5A | - | Fresh air blower switch -E9- | 15a |
| Cruise control system switch -E45- |
| Fresh air/air recirculation flap switch -E159- |
| Cruise control system (CCS) SET button -E227- |
| Anti-dazzle interior mirror button -E386- |
| Brake light switch -F- |
| Clutch pedal switch -F36- |
| Brake pedal switch -F47- |
| Airbag coil connector and return spring with slip ring -F138- |
| Bank 2 exhaust gas temperature sender 4 -G65- |
| Sliding sunroof adjustment control unit -J245- |
| Climatronic control unit -J255- |
| Mirror memory control unit -J267- |
| Radiator fan control unit -J293- |
| Parking aid control unit -J446- |
| Multifunction steering wheel control unit -J453- |
| Engine control unit -J623- |
| Fresh air and air recirculation warning lamp -K114- |
| Anti-dazzle interior mirror warming lamp -K187- |
| Radio -R- |
| Diagnosis plug, 16-pin -T16a- |
| Automatic anti-dazzle interior mirror -Y7- |
| 6 | - | Fuse 6 on fuse holder A -SA6- | - | - | vacant | - |
| 7 | - | Fuse 7 on fuse holder A -SA7- | 10A | - | Reversing light switch -F4- | 15a |
| Multifunction switch -F125- |
| "Switch for "Tiptronic""" -F189- |
| Speedometer sender -G22- |
| Starter inhibitor and reversing light relay -J226- |
| Selector lever position P/N warning lamp -K142- |
| Selector lever display illumination bulb -L101- |
| 8 | - | Fuse 8 on fuse holder A -SA8- | - | - | vacant | - |
| 9 | - | Fuse 9 on fuse holder A -SA9- | 5A | - | Traction control system switch -E132- | 15a |
| Steering angle sender -G85- |
| ABS control unit -J104- |
| Button illumination bulb -L76- |
| 10 | - | Fuse 10 on fuse holder A -SA10- | 10A | - | Control unit with display in dash panel insert -J285- | 86s |
| Convenience system central control unit -J393- |
| Dash panel insert -K- |
| Radio -R- |
| 11 | - | Fuse 11 on fuse holder A -SA11- | 5A | - | Fuel pump relay -J17- | 15a |
| Control unit with display in dash panel insert -J285- |
| Dash panel insert -K- |
| Selector lever lock solenoid -N110- (for models with automatic 5-speed transmission only) |
| 12 | - | Fuse 12 on fuse holder A -SA12- | 7.5A | - | Sensor for passenger compartment surveillance -G273- | 30a |
| Sensor for passenger compartment surveillance -G274- |
| Diagnosis plug, 16-pin -T16a- |
| Rear left reading light -W11- |
| Rear right reading light -W12- |
| 13 | - | Fuse 13 on fuse holder A -SA13- | 10A | - | Brake light switch -F- | 30a |
| Brake pedal switch -F47- |
| 14 | - | Fuse 14 on fuse holder A -SA14- | 10A | - | Rear lid release switch -E165- | 30a |
| Switch for passenger compartment surveillance -E183- |
| Luggage compartment light switch -F5- |
| Convenience system central control unit -J393- |
| Light bulb for illumination of passenger compartment surveillance deactivation switch -L118- |
| Left door warning lamp -M27- |
| Right door warning lamp -M28- |
| Front interior light -W1- |
| Luggage compartment light -W3- |
| Rear left reading light -W11- |
| Rear right reading light -W12- |
| Front passenger side reading light -W13- |
| Front passenger side illuminated vanity mirror -W14- |
| Driver side reading light -W19- |
| Driver side illuminated vanity mirror -W20- |
| 15 | - | Fuse 15 on fuse holder A -SA15- | 5A | - | Steering angle sender -G85- | 30a |
| Automatic gearbox control unit -J217- |
| Control unit with display in dash panel insert -J285- |
| Dash panel insert -K- |
| 16 | - | Fuse 16 on fuse holder A -SA16- | 10A | - | Climatronic control unit -J255- | 30a |
| Radiator fan control unit -J293- |
| 17 | - | Fuse 17 on fuse holder A -SA17- | 7.5A 10A | - | Cold start device relay -J41- | 30a |
| 18 | - | Fuse 18 on fuse holder A -SA18- | 10A 15A | - | Control unit with display in dash panel insert -J285- | 56ar |
| Dash panel insert -K- |
| Right main beam bulb -M32- |
| 19 | - | Fuse 19 on fuse holder A -SA19- | 10A 15A | - | Left main beam bulb -M30- | 56al |
| 20 | - | Fuse 20 on fuse holder A -SA20- | 15A | - | Right dipped beam bulb -M31- | 56br |
| 21 | - | Fuse 21 on fuse holder A -SA21- | 15A | - | Left dipped beam bulb -M29- | 56bl |
| 22 | - | Fuse 22 on fuse holder A -SA22- | 5A | - | Right tail light bulb -M2- | 58r |
| Right side light bulb -M3- |
| Control unit with display in dash panel insert -J285- |
| Dash panel insert -K- |
| 23 | - | Fuse 23 on fuse holder A -SA23- | 5A | - | Left side light bulb -M1- | 58l |
| Left tail light bulb -M4- |
| Control unit with display in dash panel insert -J285- |
| Dash panel insert -K- |
| 24 | - | Fuse 24 on fuse holder A -SA24- | 20A | - | Intermittent wiper switch -E22- | Xa |
| Rear wiper switch -E34- |
| Automatic intermittent wash and wipe relay -J31- |
| 25 | - | Fuse 25 on fuse holder A -SA25- | 25A | - | Fresh air blower switch -E9- | Xa |
| Climatronic control unit -J255- |
| Fresh air blower series resistor with overheating fuse -N24- |
| Fresh air blower -V2- |
| 26 | - | Fuse 26 on fuse holder A -SA26- | 25A | - | Heated rear window switch -E15- | Xa |
| 27 | - | Fuse 27 on fuse holder A -SA27- | 15A | - | Light bulb for cigarette lighter illumination -L28- | Xa |
| Cigarette lighter -U1- |
| 28 | - | Fuse 28 on fuse holder A -SA28- | 15A | - | Fuel gauge sender -G- | 87 |
| Sensor for pedestrian protection 1 -G6- |
| 29 | - | Fuse 29 on fuse holder A -SA29- | 05A 10A 15A 20A | - | Cold start device relay -J41- | 15a |
| Engine control unit -J623- |
| Ignition transformer -N152- |
| 30 | - | Fuse 30 on fuse holder A -SA30- | 20A | - | Sliding sunroof adjustment control unit -J245- | 30a |
| Sliding sunroof motor -V1- |
| 31 | - | Fuse 31 on fuse holder A -SA31- | 05A 20A | - | Multifunction switch -F125- | 15a |
| Automatic gearbox control unit -J217- |
| 32 | - | Fuse 32 on fuse holder A -SA32- | 10A 30A | - | Fuel temperature sender -G81- (for vehicles with Diesel engines only) | 87 |
| Modulating piston movement sender -G149- (for vehicles with Diesel engines only) |
| Engine control unit -J623- (for vehicles with Diesel engines only) |
| Injector, cylinder 1 -N30- |
| Injector, cylinder 2 -N31- |
| Injector, cylinder 3 -N32- |
| Injector, cylinder 4 -N33- |
| Dosing feeder (Diesel injection) -N146- (for vehicles with Diesel engines only) |
| 33 | - | Fuse 33 on fuse holder A -SA33- | - | - | vacant | - |
| 34 | - | Fuse 34 on fuse holder A -SA34- | 10A | - | Cold start valve -N17- (for models with TotalFlex engines only) | 87 |
| Exhaust gas recirculation valve -N18- (for vehicles with Diesel engines only) |
| Charge pressure control solenoid valve -N75- (for vehicles with 1.8l or 1.9l engines only) |
| Commencement of injection valve -N108- (for vehicles with Diesel engines only) |
| Variable intake manifold flap change-over valve -N239- (for vehicles with Diesel engines only) |
| 35 | - | Fuse 35 on fuse holder A -SA35- | 30A | - | Control unit with display in dash panel insert -J285- | RFL |
| Dash panel insert -K- |
| Rear left fog light bulb -L46- (only for vehicles with coming/leaving-home function) |
| Rear fog light switch -E18- (only for vehicles without coming/leaving-home function) |
| 36 | - | Fuse 36 on fuse holder A -SA36- | 15A | - | Fog light switch -E7- | Xa |
| Rear fog light switch -E18- |
| Fog light relay -J5- (only for vehicles without coming/leaving-home function) |
| Left fog light bulb -L22- (only for vehicles with coming/leaving-home function) |
| Right fog light bulb -L23- (only for vehicles with coming/leaving-home function) |
| 37 | - | Fuse 37 on fuse holder A -SA37- | 05A 20A 30A | - | Electric drive main relay -J437- | 30a |
| Engine control unit -J623- |
| 38 | - | Fuse 38 on fuse holder A -SA38- | 15A | - | Tank filler flap remote release switch -E204- | 30a |
| Mirror memory control unit -J267- |
| Driver door control unit -J386- |
| Front passenger door control unit -J387- |
| Rear left door control unit -J388- |
| Rear right door control unit -J389- |
| Convenience system central control unit -J393- |
| Servomotor for headrest, front passenger side -V26- |
| Blower for front seat back -V27- |
| Driver side window regulator motor -V147- |
| Front passenger side window regulator motor -V148- |
| 39 | - | Fuse 39 on fuse holder A -SA39- | 15A | - | Hazard warning light switch -E3- | 30a |
| Turn signal relay -J1- |
| Hazard warning light system warning lamp -K6- |
| 40 | - | Fuse 40 on fuse holder A -SA40- | 20A | - | Dual tone horn relay -J4- | 30a |
| 41 | - | Fuse 41 on fuse holder A -SA41- | - | - | vacant | - |
| 42 | - | Fuse 42 on fuse holder A -SA42- | 25A | - | Radio -R- | 30a |
| Control unit for interactive system -J879- |
| 43 | - | Fuse 43 on fuse holder A -SA43- | 10A | - | Brake light switch -F- | 87 |
| Clutch pedal switch -F36- |
| Brake pedal switch -F47- |
| Lambda probe -G39- |
| Air mass meter -G70- (for vehicles with AUQ engines only) |
| Lambda probe after catalytic converter -G130- (for vehicles with AUQ engines only) |
| Secondary air pump relay -J299- (for vehicles with AUQ engines only) |
| Relay for low heating capacity -J359- |
| Activated charcoal filter system solenoid valve 1 -N80- |
| Secondary air inlet valve -N112- (for vehicles with AUQ engines only) |
| 44 | - | Fuse 44 on fuse holder A -SA44- | 15A | - | Heated driver seat regulator -E94- (up to December 2008) | 30a |
| Heated front passenger seat regulator -E95- (up to December 2008) |
| Heated driver seat control unit -J131- (up to December 2008) |
| Heated front passenger seat control unit -J132- (up to December 2008) |
| Seat heating switch illumination bulb -L44- (up to December 2008) |
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