Smart Fortwo (W451; 2008-2015) fuses and relays

Fuse box diagram (location and assignment of electrical fuses and relays) for Smart Fortwo (W451; 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015).

Fuse box diagram: Smart Fortwo (W451; 2008-2015)

Instrument Panel Fuse Box

The fuse box is located under the instrument panel (on the left side)The location of the fuses in the passenger compartment: Smart Fortwo (2008-2015)

Fuse box diagram

Instrument panel fuse box diagram: Smart Fortwo (2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015)

Assignment of the fuses in the Instrument Panel Fuse Box
DescriptionA
1Engine 132.9, 660.9:  Starter
Engine 780.009: Brake booster vacuum pump
25
2Wiper motor25
3Power window convenience feature control unit20
4Blower motor25
5Left front fog lamp
Right front fog lamp
10
6Right taillight
Right parking lamp
Left license plate lamp
Right license plate lamp
7.5
7Left taillight
Left parking light
7.5
8Engine 132.9:
Secondary air injection pump relay
ME-SFI [ME] control unit
Electronic selector lever module control unit
Automated manual transmission control unit
Cylinder 1 ignition coil
Cylinder 2 ignition coil
Cylinder 3 ignition coil

Engine 660.9:
CDI control unit
Electronic selector lever module control unit
Automated manual transmission control unit

Engine 780.009: High-voltage battery heater
25
9Engine 132.9:
O2 sensor downstream of CAT
O2 sensor upstream of CAT
Adjustable camshaft timing solenoid
External air shutoff valve
Activated charcoal canister shutoff valve
EGR switchover valve (with engine 132.910)
Tank vent valve
Pressure regulator valve(for engine 132.930)

Engine 780.009: Electric drive and high-voltage charger fan motor

Engine 660.9: CDI control unit
7.5
10Engine 132.9:
O2 sensor upstream of CAT
Secondary air injection pump switchover valve
Cylinder 1 fuel injection valve
Cylinder 2 fuel injection valve
Cylinder 3 fuel injection valve

Engine 780.009:
Electric drive and high-voltage charger coolant pump
Battery cooling system coolant pump

Engine 660.9:
Hot film mass air flow sensor
O2-sensor upstream of CAT
CDI control unit
Glow output stage
EGR switchover valve
15
11ESP control unit25
12Instrument cluster
Additional instruments
Microwave sensor
Rain sensor / light sensor
Alarm siren with inclination sensor
Left turn signal lamps/brake light relay
Right turn signal lamps/brake light relay
Mirror heater relay
Automated manual transmission control unit
TPM [RDK] control unit
Combination switch
Cockpit switch group
Data link connector
Starter-alternator control unit
STH radio remote control receiver (engine 780.009)
Rear fog light relay
10
13Spare fuse15
14Refrigerant compressor
Charge air fan motor
15
15Smart radio 9
Smart radio 10
Front interior lamp
Soft top OPEN relay
Soft top CLOSE relay
15
16Engine 132.9:
Fuel pump with fuel gauge sensor
ME-SFI [ME] control unit

Engine 660.9:
Fuel pump with fuel gauge sensor
CDI control unit

Engine 780.009: Blower motor relay 1
15
17Rear-end door wiper motor15
18Instrument cluster
Yaw rate sensor for lateral and longitudinal acceleration
Seat occupied recognition pressure sensor
Automatic child seat recognition airbag OFF indicator lamp
Restraint systems control unit
ESP control unit
Steering angle sensor
Steering assist control unit
Driver side seat belt buckle restraint systems switch
Front passenger-side seat belt buckle restraint systems switch
10
19Engine 132.9:
ME-SFI [ME] control unit
Automated manual transmission control unit
Data link connector
TPM [RDK] control unit
Starter-alternator control unit

Engine 780.009:
Data link connector

Engine 660.9:
CDI control unit
Automated manual transmission control unit
Data link connector
7.5
20Smart radio 9
Smart radio 10
Heater/air conditioning operating unit
Front seat heater (SIH) control unit
Right wiper switch
Outside mirror adjustment switch
Electrically adjustable and heated outside mirrors
Soft top operation
Electronic selector lever module control unit
10
21Interior socket15
22Left low beam7.5
23Right low beam7.5
24Engine 132.9: Electronic selector lever module control unit

Engine 132.9, 660.9, 780.009:
Rear fog light relay
Stop light switch
15
25Right high beam7.5
26Left high beam7.5
27Engine 132.9:  ME-SFI [ME] control unit7.5
28Heated rear window40
29Soft top OPEN relay
Soft top CLOSE relay
30
30Engine 132.9, 660.9:  Automated manual transmission control unit

Engine 780.009: High-voltage battery and interior fan motor
40
31Horn
Right door CL motor
Left front door central locking motor
Rear-end door CL [ZV] motor
Fuel filler flap CL [ZV] motor
Horn switch
20
32Vacant
33Ignition/starter switch50
34ESP control unit40
35Steering assist control unit30
R1Engine 132.9, 660.9:  Mirror heater relay7.5
R2Engine 132.9:  Stop light switch7.5
R3Vacant
R4Engine 780.009:  Mirror heater relay7.5
R5Engine 780.009:
High-voltage charger control unit
External socket communications control unit
7.5
R6Engine 780.009: EVCM electric vehicle control unit15
R6Engine 132.9, 660.9:
Backup lamp relay
Brake light relay
10
R7as of 2.9.10; engine 132.9: Front interior lamp

Engine 660.9: Front interior lamp
R7Engine 780.009: EDCM electric motor control unit10
R8as of 2.9.10; engine 132.9:  Sound system amplifier

Engine 660.9: Sound system amplifier
20
R8Engine 780.009:  PDU high-voltage distributor control unit7.5
R9Engine 132.9, 660.9:  Front seat heater (SIH) control unit

Engine 780.009: Brake booster vacuum pump control unit
25

Fuses near the battery

Remove floor covering and the coverFuses near the battery: Smart Fortwo (2008-2015)

Fuses near the battery
DescriptionA
F36Engine 132.9:  Secondary air injection pump50
F58Engine 780.009:  
EDCM electric motor control unit
60
F58Engine 132.9:
Starter
Alternator
200
F91SAM control unit100

Relays

Relays: Smart Fortwo (2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015)

Relays
 Relays
ALeft turn signal/stop lamp relay
High-voltage battery heater booster relay (only ECE vehicles)
BRight turn signal/stop lamp relay
Radiator fan motor relay (only ECE vehicles)
Fuel pump relay
CMirror heater relay
Rear fog light relay
K57High-voltage battery heater booster relay
K59Radiator fan motor relay
K61Blower motor relay 1
K62Blower motor relay 2
Smart Fortwo (W451; 2008-2015) fuses and relays December 18, 2018 admin