Fuse Box Diagram Smart Forfour (W454; 2004-2006)

In this article, we consider the first-generation Smart Forfour (W454), produced from 2004 to 2006. Here you will find fuse box diagrams of Smart Forfour 2004, 2005 and 2006, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Smart Forfour 2004-2006

Cigar lighter (power outlet) fuse in the Smart Forfour is the fuse #16 in the Instrument panel fuse box.

Fuse box location

The fuse box is located under the instrument panel (on the left side).

The location of the fuses in the passenger compartment: Smart Forfour (2004, 2005, 2006)

Fuse box diagram

Interior fuse box diagram: Smart Forfour (2004, 2005, 2006)Assignment of the fuses and relays in the Instrument Panel
1Interior illumination
Upper control panel control unit
Left SAM control unit
Rain sensor/light sensor
Instrument cluster
Combination switch
Central gateway control unit
2Left SAM control unit / ETACS10
3Left standing lamp and taillamp7.5
4Right parking light and taillamp7.5
5Front wiper20
6Control unit7.5
7Outside mirror heaters7.5
8Right high beam10
9Left high beam10
11Fuel pump15
Motor electronics control unit
Motor relay
Throttle valve relay
13Trailer hitch socket (13-pin) circuit 3015
14Glass sliding roof20
15Rear window wiper motor15
16Cigarette lighter15
17Rear fog lamp7.5
18Outside mirror adjustment7.5
EDG control unit
EDG control unit
Fuel pump relay 2
Motor relay
21Right low beam10
22Left low beam, headlamp range adjustment10
23Front fog lamp10/15
24Diagnostic socket, central locking (2004)15
25Trailer hitch socket (13-pin) circuit 1515
26Turn signal lights15
28Anti-theft alarm system10
29Manual transmission20
30Diagnostic socket, central locking (2005-2006)15
31Brake lights
Stop lamp switch (4-pin)
32Control unit for air conditioning system, 12 volt7.5
33ESP control unit
Steering assist control unit
Restraint systems control unit (Airbag)
Ignition coils
35EDG control unit
Fuel pump relay 1
36Reversing lights7.5
37Rear window heater30
38Seat heater30
EDG control unit
40Heater blower40
41Ignition/starter switch40
42Power windows
Headlamp cleaning system pump
43Engine coolant fan motor40
44Electronic selector lever module control unit (with transmission 717.474, 717.475)40
APower window relay
BHorn relay
CFuel pump 2 relay
DRear fog lamps relay
EStarter relay
FGasoline/diesel engine relay
GPreexcitation alternator
HFan stage 1 relay
IFog lamp relay
JHeater relay
KFuel pump 1 relay
LTransmission relay
MTrailer hitch bridge
NFree (backup relay)
OFan stage 2 relay
PHeadlamp cleaning system relay
QRear window defroster relay
RHeated seats bridge
SLow beam relay
THigh beam relay
UThrottle valve relay (only with engine 134.910, 135.930/950)