Take the door panel off and lower the window a little way. Look at the bottom of the door, you'll find opposing Torx 30 bolts. Remove them. Look at the top and you'll see 2x Torx40 bolts that hold the glass to the regulator. Undo them both. Open the door and...
Smartmods
for all your modding needs, recommended by Evilution
Kane Harrison
451 Free Cup Holder
Smart will sell you a cup holder for your 451 but to be honest, you don't need it. You get one free, as standard. On the way back from picking up my first 451 in 2007 we stopped at a McDonalds for lunch. The next day, I noticed that the passenger had left her drink...
451 Front Bumper Removal
Removal of the new smart 451 front panel is just as easy as before.
451 Front Frame Removal
The front of the 451 is taken up by a huge plastic frame, here's how to change it
451 Front Wheel Bearings
How to change the wheel bearings on the 451
451 Fuel Filler Flap Removal
Incase your filler flap gets damaged or you want to replace the flap with an aftermarket one.
451 Fuel Filter
451 Petrol Engine None of the petrol engined smart fortwo 451 have a replaceable fuel filter. 999cc petrol non turbo - no replaceable fuel filter 999cc petrol non turbo MHD - no replaceable fuel filter 999cc petrol turbo - no replaceable fuel filter The fuel filter is...
451 Fuel Flap Solenoid
To remove the fuel flap solenoid, you have 2 options. You can take the rear panels off or leave them on. Rear Panels Removed If the panels are off, it makes it easy. Open the filler flap. On the back edge are 2 clips. They are very easy to push in by hand. Lever the...
451 Gear Change Motor Clean
Gear change motor failures are becoming a lot more common now. There are 2 motors. The 1st motor controls gear 1, gear 3 and gear 5. The 2nd motor controls gear 2, gear 4 and reverse. One will generally fail so you'll normally have issues with alternate gears. Let's...
451 Gear Change Motor Testing
Bench Testing The 451 Gear Change Motor The 451 has 2 motors so therefore has 2 similar connectors. Motor 1 Pin Wire colour in photo Function 1 Blue Motor 2 White/Red Voltage Input 3 Blue/Green Sensor 2 4 Violet/Yellow Sensor 1 5 Brown/Yellow Earth 6 Violet Motor...
451 Gearbox Controller Pin Out
Right Connector Gearbox Control Unit Wire Colour Connects To Function 1 Red/Blue SAM Plug 4, Pin 20 Fuse 30 2 Brown Earth Ground 3 Red/Blue SAM Plug 4, Pin 20 Fuse 30 4 Brown Earth Ground 5 - - - 6 - - - 7 Red/Grey SAM Plug 1, Pin 2 (diesel) SAM Plug 5, Pin 11...
451 Gearbox Controller Removal
Smart call the gearbox controller is the Sprintshift Module, because marketing nonsense. If you are suffering the 3 bar issue with your 451, there is a possibility it has got wet. Step 1 is to check under the carpet to see if there is any sign of water. Remove the...
451 Gearbox Fluid Change
Fortwo 451 Petrol Non Turbo (Including MHD) The transmission fluid change is similar to that of the older smart fortwo and Roadster. The main difference is the position of the draining hole. It is now on the right bottom side of the transmission housing. The upper...
451 Gearbox Motor Removal
If you have a non turbo model, great, you just need to remove the air inlet pipe to access the gear change motors. If you have the turbo petrol or diesel model, things are a bit more convoluted. Remove the fan, intercooler and scoop. As there are 2 motors, there are 2...
451 Gearbox Removal
Chances are, if you are removing the gearbox for some reason, your engine is still in the car. There are pros and cons. The pros is that the engine is easier to steady because at one stage, the engine will be held up by 1 engine mount. The cons is that you have less...
451 Glasses Holder
A very easy thing to fit which holds your glasses or sunglasses.
451 Glove Box Insert Removal
Remove the glove box insert to remove the upper dash or to properly fit the glove box flap
451 Glove Box Retrofit
Fit the glove box flap properly even though smart say it isn't possible.
451 Glovebox Lock Removal
If you bought a 2nd hand glove box with a lock in it that your key won't operate, you'll have to remove it so you can replace it with one that does. Removing the old one does damage it but who gives a toss. It's going in the bin. Here is the offending glove box lock....
451 Glow Plug Wiring
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.