Repairing/Cloning A SAM Unit Don't get too excitied. Although I will eventually add the info so you can do it yourself, that time isn't now. Who Can Repair/Clone A SAM For Me? If you are a company that can clone or repair a SAM unit, let me know and I'll add you to...
Kane Harrison
SAM Unit Solder Repair


Lead-free solder is shit. Fact! It was shit out onto our laps by the EU overlords because "lead bad". What I think the real reason was that it limits the lifetime of electrical items so people have to buy more stuff when your old stuff fails. Lead-free solder is...
Scoop Fitting
How to fit a scoop to the air intake
Scratch Removal



The paintwork is prone to scratches, here is how to remove them from painted surfaces and non painted plastic panels.
Screen Washer Faults
The screen washer system is quite basic so there are only a few things that can go wrong.
SE Drive (Gear Stick) Removal

The SE Drive is the gear stick unit just in front of the handbrake.
SE Drive And Ignition Fix

There have been a few instances now where the ignition key fails to turn the ignition switch below it. So far they have all been in Roadsters.
SE Drive Disassembly

Closer Look At Some Of The Parts This is the SE Drive as it appears removed from the car. The ignition ring unclips and the gear stick cover just slides off with the spring. On each side are 3 clips, you don't need to push them in to take it apart. It's easier to bend...
Seat Belt Replacement



You will fail your MOT if your seat belts are damaged and if your airbag goes off, your seat belt pretentioner will have blown too.
Seat Belt Stops



Does your seat belt tongue drop all the way to the floor?
Seat Belts



If you are driving more than a few yards, please wear your seat belt.
Seat Cover Removal
If you need to swap base frames, change the upholstery or gain access to the seat airbag, you are going to need to remove the seat covers and foam.
Seat Information
Some handy seat info you might need to know.
Seat Removal 451
Important If you have seat airbags, you MUST disconnect the battery before removing the seats. Do not reattach the battery or turn on the ignition until you have reattached the airbag wires. If you fail to do this you will cause the airbag fault light to come on. When...
Secondary Air Injection Pump
It is becoming more and more common for people to report a terrible noise for about 90 seconds on start up. This is due to the secondary air pump. People with no actual clue often call this an EGR pump. This secondary air injection pump can be found on 700cc fortwos...
Seized Alternator
On the 450 fortwo and the Roadster, due to the open design and the placement of the alternator, if you drove your car in wet conditions and then left the car standing for a few weeks, there is a chance it won't start. This is because water gets in and creates rust and...
Sensors (Suprex)
What they are,where they are and what they do.
Sequential DV Servicing
The sequential DV is a bit more complex than other types so there is more that can go wrong. Keep it clean and it’ll last a lot longer.
Servicing A 54BHP CDI 451
The servicing of the 54bhp diesel 451 is very similar to servicing all diesel smarts. Glow plug change Air filter change Oil filter change Cabin filter change Oil change The Important Difference The main change is to the last point on the list, oil change. Although it...
Servicing The 451 Clutch Actuator
The clutch actuator on the 451 is better than the previous model when it comes to being sealed but they do still have issues.