Without Heated Seats - 1 or 2 buttons Pin Number Wire Colour Use 1 Red/Green Power 2 Violet/Blue Hazard Lights 3 Blue or Blue/Yellow Central Locking 4 Brown/White Lighting 5 Green AC 6 Grey AC 7 Black/Red (coupe) Rear Window Heater 8 Brown Earth With Heated...
Smartmods
for all your modding needs, recommended by Evilution
Kane Harrison
Roadster Buying Guide
So, You’re Thinking Of Buying A Smart Roadster? There is really nothing affordable that drives and handles like a smart Roadster. They are fun, practical (for most), good on fuel and great on sunny days with the top down. On the flip side, they aren't the most...
Roadster Cabin Fan Removal
The cabin heater fan can be seen by posting yourself into the right side footwell and looking up. It connects into the side of the central cabin heater box. To give yourself more room, lower the SAM unit, move the brake light switch and shift the wiper bucket out of...
Roadster Cabin/Pollen Filter
How to fit or change the pollen cabin air filter.
Roadster Cam Shaft Removal
To get to the camshaft you have to remove the air inlet manifold and rocker cover. Take an E10 socket and remove all 8 of the bolts that hold the bearing caps to the engine head (12Nm on refitting). The bearing caps are the brackets that hold the camshaft to the...
Roadster CAN Bus PIDs
Credit All credit for this information goes to Jack Rogers. This is all well over my level of understanding. Please don't message me asking questions about it as I have no idea. Notes The tables below are laid out in binary. Each CAN message consists of up to 8...
Roadster CAN Bus Wiring
Roadster CAN Bus Wiring This shows the wiring colours, pin positions and connections between electronic modules. The CAN Bus (Controller Area Network) is a network of 2 wires that connects all of the control modules. They use this network to communicate all of the...
Roadster Carpet Removal
Roadsters leak and the carpet holds all the water, eventually it starts to smell
Roadster Central Locking Issues
Roadster Immediately Unlocks After Locking Back around 2009 I bought a fucked Roadster. The low mileage car was OK but it wouldn't start and wouldn't stay locked. The non starting was met with a CAN bus fault so I decided to check the continuity of every single wire...
Roadster Chain Tensioner Removal
The timing chain runs from the crankshaft up to the camshaft. For every 2 turns of the crankshaft, the camshaft will turn once. This relation between the 2 sprockets must stay the same at all times to keep the combustion cycle working and to stop the valves from...
Roadster Clutch Actuator Gaiter
I'm sure you know that the clutch actuator is a bit of a weak spot. It doesn't snap the spiral like the 451 and 454 however, it does dry up internally which will slow down the movement. The only thing that stops the water from getting into the casing is a rubber boot....
Roadster Clutch Actuator Servicing
Originally there were 3 options to fixing a slipping/badly adjusted clutch. Have the clutch actuator retaught on a star machine. If that couldn't be done as the machine bought up errors, New clutch actuator fitted. This was the option given to me at smart. If that...
Roadster Clutch Actuator Setting
Removing The Clutch Actuator For Smart Roadster 1. Switch off the ignition. 2. Wait for approximately 1 minute. 3. Make sure the clutch is completely closed. 4. Disconnect the electric connection on the clutch actuator motor. 5. Loosen clutch actuator (5) screws...
Roadster Clutch Actuator Testing
Testing an item off of the car can prove if it is working or not.
Bench testing allows you to narrow down your searches if something is faulty as it allows the individual testing of complicated items.
Roadster Clutch Removal
The clutch doesn't last forever. It wears down causing slipping and poor pull away.
Roadster Coil Pack Removal
Open the engine cover and look between you and the large smart logo on the air inlet manifold. They are covered in a bunch of shit so I have coloured them in so you can see where they are. Each one of the 3 coil packs have a 4 wire connector... ...disconnect it....
Roadster Coolant Draining/Filling
Draining The best way to drain the system is at its lowest point, in the smart's case they have actually installed a coolant drain plug that can be removed with a 6mm allen key. It is located on the back of the engine. Lay down under the back of the car and you'll see...
Roadster Crossmember Tie Bar
The Roadster front subframe isn't the greatest piece of engineering.
Roadster Cruise Control Functions
This is the cruise control stalk. The symbols on yours may vary. Cruise Control Whilst driving, pressing the end button will turn the cruise control on and off. The ring can be rotated down and then released, this sets the cruise control at your current speed. If the...
Roadster Cycle Valve Change
Cycle Valve - Fault Symptoms If your car goes into safe mode every now and then, it could well be a faulty cycle valve. Try pulling and refitting fuse 27. If that temporarily fixes the issue, you need a new cycle valve. The valve can also fail in such a way that the...