Smart Roadster (2003-2006) fuses and relays

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Smart Roadster was produced from 2003 to 2006. In this article, you will find fuse box diagrams of Smart Roadster 2003, 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 box diagram: Smart Roadster (2003-2006)


Cigar lighter (power outlet) fuse in the Smart Roadster is the fuse #21 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 Roadster (2003, 2004, 2005, 2006)

Fuse box diagram

Interior fuse box diagram: Smart Roadster (2003, 2004, 2005, 2006)

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Assignment of the fuses and relays in the Passenger Compartment
DescriptionAmp
1Starter25
2Windscreen wipers, washer pump20
3Heater blower, seat heater20
4Power windows30
5Light switch7.5
6Parking lights/tail lights, right7.5
7Parking lights/tail lights, left7.5
8Terminal 87/3 master relay (engine)20
9Terminal 87/2 master relay (engine)10
10Terminal 87/1 master relay (engine)15
11Instrument cluster, safety cluster, OBD, Horn (only with leather sport steering wheel with steering wheel rocker switch system)7.5
12Radio CD, interior light15
13Fog lamps15
14ESP valves25
15Charge air cooler, Air conditioning compressor15
16Electric fuel pump10
17Rear window wiper15
18Airbag triggering device, ESP7.5
19Mirror adjustment7.5
20Radio, CD, instrument cluster, tachometer, OBD, backup lamp, CD changer15
21Power socket,  Cigarette lighter15
22Low beam light, right7.5
23Low beam light, left7.5
24High beam light, right7.5
25High beam light, left/combined light7.5
26Brake light15
27Engine control unit7.5
28Rear window heater/engine fan30
29Soft top30
30Manual gearbox40
31Horn, central locking, rear lid remote unlocking30
32Secondary air injection pump (emission control)30
33Ignition switch50
34ESP control unit50
35Steering assist control unit30
36Backup fuse 15
37Backup fuse 15 (W450, glass sliding roof)15
38Backup fuse 15
39Backup fuse 15
40Backup fuse 30
41Backup fuse 30
42Backup fuse 30
43Backup fuse 3025
44Backup fuse 30, seat heater25
Relays
AWiper system relay
BFog lamp relay
CLeft heated seat control unit
DRight heated seat control unit