Remove the intercooler fan to gain access to the intercooler radiator. As you have already removed the upper intercooler pipe, you just have to remove the lower intercooler pipe. This runs from the right hand port of the intercooler radiator to the turbo. Just loosen...
Kane Harrison
Intercooler Scoop Removal
It's common to have a part of the lower intercooler scoop missing as they often get smashed off by stuff in the road like dead foxes and giraffes etc. The scoop is 2 parts so you can just replace the broken section if you want.
Interior Lights
Interior Lights The smart 450 has two interior lights, one on the centre console and one on the roof at the back. The interior lights will illuminate themselves for a short duration when you open the doors, they automatically turn off when: The ignition is started....
Internet Services



Fellow smart owner John Lambs company offers a load of services for internet and computer support.
Items For Sale






Stuff we have to sell
Jacking Up A Smart



In case you need a do some work – like change a wheel – you need a jack. You'll also need to know how to use it.
Janspeed Stainless Intercooler Pipes
Getting air to the engine is one of the main ways to increase performance, these pipes are wider than the stock effort allowing a greater flow.
Jump Start Boxes



Jumper Cables In the good old days when everything was black and white, your only option for jump starting your car was a long set of unwieldily cables and a willing participant who owns a functioning car who was either there or willing to travel to you. That's all...
Jump Start Your Smart


Instead of bypassing the starter motor by push starting your smart, why not use the power from another car's battery to boost your own?
K1 Speed Camera Detector



With the change of rules about speeding in the UK, it makes sense to get a speed camera detector.
Key Blanks
If you are just after the key blank with no fob, there are quite a few to choose from
Key Button Replacement

Key Tactile Switches The 450, Roadster and original Forfour use the same tactile switches on the key PCB. As with most things these days, they are probably the cheapest parts they could find for the job. They are low quality, have no internal dust protection and are...
Key Icon – Car Won’t Start
Thanks to Pierre S for the video clip.
Key Modifications
Ok, we all know the smart key is rubbish, its bulky, badly designed and can lose its coding.
KM to Miles
If you mess about with the speedo or let the battery die, your mileage can revert back to Kilometers
Larger Throttle Body
The original throttle body has a fairly small opening, bigger is better. For the smart 450 and Roadster ONLY. NOT 451.
Launch Control
How To Make A Quick Getaway The smart is not a fast car and people know it's not a fast car. However, due to its weight, it can be a quick car. If you know how to launch the car, you'll be able to surprise more powerful cars from standstill. Stamp On It Just as the...
Laying A Car Up



If you have reason to not use your car for 3 months or more, make sure it is ready
Lead Free Solder Failure


Lead free solder was forced onto electronics manufacturers to save the environment. All it actually did was cause problems for us in the future.
Leak Detection



Detecting the position of a leak can be problematic and time consuming.