Open the tailgate. To remove the tailgate trim panel, there are 2x Torx20 screws hidden behind 'caps'... one at each side of the panel. Pop the caps off with a small screwdriver or with your finger nail if you can. Try not to lose them. Now unscrew the 2x Torx20...
Kane Harrison
454 Forfour Service Panel
Open the bonnet and remove the 10mm bolt from each side of the scuttle panel. Disconnect the windscreen squirter hose. It just pulls apart. Now the entire scuttle panel can be pushed backwards towards the windscreen. When you refit this panel, slide it over the white...
454 Forfour Speedo Cloning
Cloning The 454 Forfour Speedo Cloning is a process where you take data from 1 item and copy it to another to make an exact replica. Why Would I Need To Do That? If your speedo has failed completely, has a hardware or PCB fault, you need to fit a new speedo. Can I...
454 Forfour Stiff Gear Change
OK, so you have removed the gear change selector because the gear change was stiffer than Ron Jeremy. Ideally, you shouldn't need a hammer to change gears. The issue is down to the pivot in the selector mechanism arm. See below, the original pivot is hollow and...
454 Seat Height Handle Fault
On the initial run of Forfour's there was a design fault with the seat adjustment handle
454 Speedo Disassembly
Change your dials over for something better like the metal money dials.
454 Stereo Removal
Remove the stereo to fit an mp3 lead for example.
45bhp CDI Air Filter Change
Working on the diesel engine is one of the dirtiest jobs you can do. Changing the air filter is just as messy on the 45bhp version.
45bhp CDI EGR Clean
Diesels are dirty engines, they are noisy but they are efficient. However, if they can't breathe then you aren't getting the best from the engine.
45bhp Or 54bhp 451 Diesel?
Should I Buy The 45bhp Or 54bhp Fortwo? Probably, yeah. I Meant Which One Should I Buy? Yeah, I know. However, it's a question that only you can answer. OK, What Are The Options? 45bhp 451 CDI There are 3 problems with this model. It's older than the 54bhp model, It's...
54bhp CDI Air Filter Change
Changing the air filter on the 54bhp version of the diesel 451 is unlike the other models.
54bhp CDI Exhaust Temp Sensors
54bhp CDI 451 Exhaust And Turbo Temperature Sensors The turbo temperature sensor and the DPF temperature sensors are fairly common failures on the 54bhp diesel 451 fortwo. The issue is that the symptoms of a failed temperature sensor were very similar to a failed DPF...
600cc 450 Fuse Layout
Main Main Fuse Box Under the dashboard. Relays and other info can be found here. No Description Amp. Colour 1 Parking and tail lights, r., instrument panel illumination, license plate lights 7.5 A Brown 2 Parking and tail lights, l. 7.5 A Brown 3 Front fog lamps 15 A...
600cc Secondary Fuse Box
Secondary Fuse Box The 600cc smart fortwo (1998 to 2002) (or city-coupe and city-cabrio as it was called back then) had a ZEE unit under the dash instead of the SAM unit as found on the 700cc fortwo. The ZEE unit didn't have many fuses or relays so smart added an...
700cc 450 Fuse Layout
No Amperage Colour 1 Starter 25 A Neutral 2 Windscreen wipers, washer pump 20 A Yellow 3 Heater blower, seat heater 20 A Yellow 4 Power windows, l. & r. 30 A Green 5 Light switch 7.5 A Brown 6 Parking lights/tail lights, r. Dash lighting. License plate lights 7.5...
800cc 450 CDI Fuse Layout
Canadian CDI Layout No Amp. Colour 1 Starter 25 A Neutral 2 Windscreen wipers, washer pump 20 A Yellow 3 Heater blower, seat heater 20 A Yellow 4 Power windows, l. & r. 30 A Green 5 Light switch, parking lights, low beam lights, high beam lights, headlight...
800cc 451 CDI Fuse Layout
451 Diesel Fuse Layout No Amp. Colour 1 Engine 25 A Neutral 2 Windscreen wipers 25 A Neutral 3 Window lifter motor, left and right 20 A Yellow 4 Heater blower 25 A Neutral 5 Fog lights, LED DRLs 10 A Red 6 Parking lights right, instrument lights, licence plate lights...
AC Compressor
Magnetic Clutch The air conditioning compressor is clever but simple. Instead of wasting engine power turning the compressor when the air conditioning isn't needed, it disconnects the pulley from the compressor shaft so only the pulley wheel spins. It does this by...
AC Drier Insert Removal
The oil in the AC refrigerant absorbs moisture which isn't good for the AC system. The moisture will combine with the refrigerant to form hydrochloric acid. Not good for metal. They recommend that you change it every 3 years or every time the system is emptied and...
Accelerator Kick Down Switch
In the past I have heard talk of a dedicated kick down switch on the accelerator pedal. This type of pedal was fitted to smart fortwos and Roadsters that had automatic and/or cruise control. When auto was retrofitted by smart, they would remove the old pedal and...