Smart Fortwo (W450; 1998-2002) fuses and relays


In this article, we consider the first-generation Smart City Coupe (Fortwo, SmartCar) (W450) before a facelift, produced from 1998 to 2002. Here you will find fuse box diagrams of Smart Fortwo 1998, 1999, 2000, 2001 and 2002, 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 Fortwo 1998-2002


Cigar lighter (power outlet) fuse in the Smart Fortwo is the fuse #12 in the Instrument panel fuse box.

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 Fortwo (1998-2002)

Fuse box diagram

Interior fuse box diagram: Smart Fortwo (1998, 1999, 2000, 2001, 2002)


Assignment of the fuses and relays in the Instrument Panel

Description A
1 Right standing lamp and taillamp, instrument lighting, license plate lamp 7.5
2 Left standing lamp and taillamp 7.5
3 Front fog lamp 15
4 Rear fog lamp 7.5
5 Left low beam with headlamp range adjustment 7.5
6 Right low beam with headlamp range adjustment 7.5
7 Left high beam, high beam indicator 7.5
8 Right high beam 7.5
9 Petrol as of 16.11.99: Ignition coil, starter
Diesel as of 16.11.99: Starter
10 Turn signal lamps, stop lamps 15
11 Radio, navigation system, CD changer, instrument cluster, tachometer, backup lamp, automatic child seat recognition, diagnostic socket, PTC heater booster switch (Diesel) 15
12 12 volt socket 15
13 Rear interior lamp, diagnostic socket 15
14 Radio, navigation system, CD changer 15
15 Control modules: instrument cluster, ZEE, central locking, anti-theft alarm system, trunk lid remote unlocking, front interior lamp 7.5
16 Central locking, safety console, clock, horn, trunk lid remote unlocking, interior lamp 15
17 Rear window wiper motor 15
17 Cabrio:  Heated seats 25
18 Heated seats 25
18 Cabrio:  Soft top motor 25
19 Cabrio:  Soft top motor 25
19 Glass sliding roof 15
20 Petrol: Engine control module 7.5
21 Rear window heater, engine fan 30
22 as of 16.11.99:  Gearshift system, circuit 30 relay box 40
22 up to 15.11.99:  Turn signal lamps, stop lamps 15
23 Heater fan 20
24 Left and right power windows 30
25 Front wiper, washer pump, rear wiper 20
26 Control modules: ABS, airbag, ZEE 7.5
27 ABS 50
A Fog lamp relay
B up to 15.11.99:  CL opening relay
as of 16.11.99: Remote trunk opening relay
C up to 15.11.99:  CL closing relay
as of 16.11.99: Rear wiper intermittent wipe relay
D Horn relay
E up to 15.11.99:  Remote trunk opening relay
as of 16.11.99: Heater blower, power window and relief relay
F Heated rear window relay
G Engine fan relay
H Left turn signal indicator relay
I Right turn signal indicator relay
K up to 15.11.99:  Heater blower, power window and relief relay
as of 16.11.99: Front wiper intermittent wipe relay
L Headlamp relay
M Headlamp relay

Fuse Box under left seat

Fuse box location

It is located under the carpet beneath the left seatFuse Box under left seat (location): Smart Fortwo (1998-2002)

Fuse box diagram

Fuse Box under left seat: Smart Fortwo (1998, 1999, 2000, 2001, 2002)

Assignment of the fuses and relays under the left seat

Description A
S1 Charge air cooler, refrigerant compressor magnetic clutch 15
S2 Fuel pump 10
S3 Petrol:  Injection valves, MEG
Diesel: Injectors, electrical cut-off, pressure valve
S4 Petrol:  Tank vent valve, oxygen sensor
Diesel: Glow time control
P Electric fuel pump relay
Q Automated manual transmission relay
R Main relay
S Charge air cooler fan relay
T Starter relay
U Air conditioner compressor magnetic clutch relay

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