Warning Fuel injectors are connected to fuel pipes. Fuel can set you on fire and make your day miserable. No smoking, lighting farts or juggling flaming batons whilst you are doing this. It is important that you do NOT have the keys in the car. If the ignition gets...
Smartmods
for all your modding needs, recommended by Evilution
Engine
450 Fuel Pump Removal
Lower the tank and look on top. That's the top of the pump with the fuel out, fuel return and tank breather pipes. Just in front of that is the electrical connector. Disconnect the electrical connector by lifting the top tab and sliding the connector sideways....
450 Fuel Tank Drain
Fuel Filter The fuel filter is quite well hidden, it is behind the offside rear wheel arch. Jack the car up, remove the wheel and remove the arch liner. On each end of the filter is a connector with an orange clip. To disconnect the pipe you just have to push the...
450 Fuel Tank Removal
Remove the under tray to reveal the fuel tank. This is the smaller 22 litre tank but the later model had a larger 33 litre tank. Removal is the same but there are a few more fixings to remove. Drain as much fuel from the tank as you can. If you don't, the tank could...
450 Gearbox Fluid Change
Although smart say this is a non servicable item, it would be foolish to use the same oil year in, year out. I recommended you change it every 3rd service. People have found the gearchange is much improved after doing this.
450 Lambda Sensors
The Lambda (O2) sensor is by far the most common fault that brings up the engine fault light.
450 Larger Oil Sump Pan
More Oil, More Better OK, the grammar is terrible but facts are there. The more oil your engine has available, the slower it will degrade. Now, I'm not saying to put more oil in your engine, that'd be terrible. What we need is a bigger sump. Bigger Sump, Bigger Cost?...
450 Oil Pump Removal
Because the smart is generally hard to work on, it just wouldn't be right if changing the oil pump was an easy task. So it's no surprise to find out that it's a lot of work to get to but very simple to actually change. Remove the air inlet manifold, rocker cover,...
450 Rocker Cover Removal
Remove the spark plugs and air inlet manifold to reveal the crusty and corroded rocker cover. Use an E10 socket to remove the 6 bolts holding it down. One of this bolts also holds the oil dip stick tube in position. Pull off the large rubber breather hose from the TIK...
450 Starter Motor Fix
This is the starter motor removed from the car. Actually removing it is a terrible job. Annoyingly, it's rarely the starter motor that fails so removing it is usually unnecessary. So, if you go to start the car and you only hear a click from the fuse box, you may have...
450 Starter Motor Removal
How to remove the starter motor
450 Thermostat Valve Change
What Are The Symptoms Of A Failed Thermostatic Valve? The thermostatic valve starts closed which only allows the the coolant to circulate around the engine. As the engine temperature increases, the coolant temperature also increases. Eventually, the thermostatic valve...
450 Timing Chain Change
Why Would We Need To? A phenomenon incorrectly called "chain stretch" is the main reason for requiring a new chain fitting. The thickness of the slide rail, the maximum movement of the chain tensioner and an excessive lengthening of the chain eventually causes issues....
450 Timing Chain Cover Removal
I did this with the engine removed. If you want to try it with the engine still in the car, you go for it you nutcase. You'll hate yourself by the end of it but you will have gained the dexterity to wallpaper your hallway through the letterbox. Remove the belts. See...
450 Timing Chain Guide Removal
Once you've removed the cylinder head, you'll notice the main chain guide comes with it and is captive within the head. Since you are this far into the engine, you may as well fit new guides, tensioner and chains. To remove the main chain guide, you need to remove...
450 Wastegate Actuator Hoses
The question of which pipe goes where has come up a few times and as a true pro I didn't have the faintest idea so thought i'd better find out.
451 54BHP CDI Losing Coolant
54BHP 451 Fortwo Diesel - Losing Coolant As of early 2015, this became a common problem that will affect all 54bhp 451 diesels eventually. The 54bhp diesel 451 was the October 2009 onwards model with the DPF (diesel particulate filter). Important This is an issue that...
451 ABS Sensors
Front ABS Sensor Removal Using an E10 socket, remove the bolt on the back of the hub. Pull the sensor out of the hub. If it gets stuck, spray it with penetrating oil and twist it back and forward to break the corrosion. Follow the cable and disconnect the electrical...
451 Air Box Pipe Removal
In case you needed to fit an after market TIK pipe.
451 Air Box Removal
Want to remove the air box to make something more interesting?