Air In The Brake System = Bad We all know what gravity does. What you might not know is what happens when you disconnect brake pipes and lines. The brake fluid reservoir, master cylinder, ABS pump and most of the hoses are higher than the points you disconnect. So,...
Kane Harrison
Brake Pipe Replacement



It's a fairly common failure or advisory on an MOT. Normally it's just the tester panicking and the corrosion can be sanded off and the pipes painted. However, sometimes the pipes are just too far gone and the corrosion causes a hole. You have 2 options. Expensive but...
Brake Switch Test

The brake light switch failing is a common problem but other things can cause the same symptoms. Makes sense to test your switch before blindly replacing it.
Break In – Fortwo 450
How to break into your own car
Break In – Fortwo 451
Key Blade Doesn't Work In The Lock - Non MHD So, the battery went flat but you have the key. You might be lucky. Obviously 1st try spraying the inside of the lock and the key blade in oil, just in case it's a bit corroded inside. Give the key a bunch of "in and out"...
Break In – Roadster
How to break into your own car
Breather Pipes
There are a few interesting things about the oil breather pipes.
Broken Keyfob Plastic
It's fairly normal to break the bit of plastic that holds the key to the key ring
Budget Snow Foam



How to get the holy grail of snow foam without spending loads.
Burning Smell


Got a burning smell after driving?
Buy Me A Beer



For some inexplicable reason, despite paying for a yearly subscription, some people still want to send me more money. Many of these people are subscribers who have paid the minimum amount for their subscription and then discovered how much they actually use the...
Buying MB Star





There are plenty of diagnostic solutions out there but why not spend a bit more and have what smart use in their garages?
Cabrio Rear Window Fix
The plastic windows in the 450 soft top were easily damaged and smart would only ever suggest a new roof!
Cabrio Roof Info

Cabrio Roof Information The rocker switch located to the side of the gear shift lever operates the cabrio roof. Sunroof Function To open the roof, press and hold the switch backwards. The roof will only move when the switch is being held down. To close the roof, press...
Cabrio Roof Wind Noise




So, your cabrio roof makes noise along the front edge when you drive over a certain speed. If you own a 453 fortwo, first check that it's not a poorly sealed windscreen. No, It's Definitely The Roof OK, try some of this. Broken Slider Mechanism Slide the roof back...
Cabrio Seal Fault
Member Dacfolke recently bought a fortwo cabriolet but had a problem with the seals catching on the manual part of the roof. After looking into it and comparing cars he found the solution was available from smart.
Cabrio Windscreen Tabs


What are the black plastic tabs for at the top of the windscreen of a cabrio actually for?
Calculate Your MPG


How many miles per gallon are you doing?
Calculating Wheel Spacers



How Do You Calculate For Spacers? Spacing the wheels out increases cornering grip and makes the car look better. But you don't want to space your wheels out too far or the tyres may rub on the arches and the car could fail the MOT inspection. You could get out your...
Canadian E-Box Failure
Only Canadian Smart 450s Need Apply This is one of those faults that only affects 1 type of car. Strangely it only affects 450s in Canada. This fact becomes less strange when you realise that the part that fails is only fitted to Canadian 450s. Of course, that does...