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smartmods
for all your modding needs, recommended by Evilution

Kane Harrison

Normal Mod 451 Ignition Barrel Removal451 Fortwo

Remove the SE Drive cover and look into the base of the ignition barrel. You'll see a tab. This tab is locked in the outward position and holds the barrel into the housing. Put your key into the ignition... ...and turn it 90 degrees clockwise. Stick a screwdriver into...

Premium Mod 451 Interior Light Wiring451 Fortwo

Key:
E = Earth
C4/8 = Connection plug 4, pin 8
Fuse* or F* = Direct connection fuse number
Black Yellow = Wire colour

Modules are labeled in the picture.

Normal Mod 451 Key Fob Battery451 Fortwo

Batteries don't last forever so instead of getting locked out of your car, let's change the battery for a fresh one.

Normal Mod 451 Key Resync451 Fortwo

Issue I found that if you don't use one of your 451 keys for a long time and the battery runs out, when you refit a new battery, you may find that the key still won't unlock the central locking. Fault Or Security Feature? Unknown but at a guess, I would say it's a...

Normal Mod 451 Lambda Sensors451 Fortwo

These sensors measure the air/fuel mixture ratio and adjust the engine parameters. If either of these are faulty you can have an engine light on, poor running or bad mpg.

Premium Mod 451 Lateral Movement Sensor451 Fortwo

It's fairly rare for the lateral movement sensor (sometimes called the yaw sensor) to fail on the 451. However, this used to be the same case on the previous models but eventually they started failing. The biggest cause of it failing is due to water ingress. This is...

Premium Mod 451 LCD Retrofit451 Fortwo

For the 1st year (or so), the 451 came with a useful display on the speedo.
Unfortunately the dumbed down American display took over leaving us missing 2 piece of information.
Let us get it back.

Premium Mod 451 Lower Dash Removal451 Fortwo

Remove the lower dash so you can have it recovered in leather or so you can remove the glove box insert.

Normal Mod 451 Luggage Cover451 Fortwo

The luggage cover for the new smart is really well thought out. Unlike the old luggage cover, this one retracts like a roller blind.

Normal Mod 451 Luggage Tie Down Points

The 451 has the option (not standard) for adding tie down points in the boot. The OEM boot divider came with these. They are ok but not as strong as my other option. However, if you want these, look on eBay for "tie down rings" and make sure they can accept an 8mm...

Premium Mod 451 MDC Cruise Control451 Fortwo

In 2011 smart added cruise control as an option but it couldn't be retrofitted. If you want cruise control, you need an add on kit

Normal Mod 451 MP3 Lead451 Fortwo

If your smart didn't come with an MP3 lead, you should consider buying one.

Normal Mod 451 OBD Pin Out451 Fortwo

OBD Socket Location 999cc smart - in front of the driver's knee nearest to the centre of the car under the dash. The 999cc smart has a flap down cover that protects the socket. 999cc Smart Pin 1 No connection Pin 2 No connection Pin 3 No connection Pin 4 Negative...

Premium Mod 451 OBD Wiring451 Fortwo

Key:
E = Earth
C4/8 = Connection plug 4, pin 8
Fuse* or F* = Direct connection fuse number
Black Yellow = Wire colour

Modules are labeled in the picture.

Normal Mod 451 OEM Navigation451 Fortwo

The smart 451s sat nav is made by Garmin. The early set up (shown here) was based on a Garmin C510. The new updated version uses that same dock and wiring but uses a modified widescreen Garmin 760 navigation unit.