Issue I found that if you don't use one of your 451 keys for a long time and the battery runs out, when you refit a new battery, you may find that the key still won't unlock the central locking. Fault Or Security Feature? Unknown but at a guess, I would say it's a...
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453 Fog Light Coding
Adding fog lights to the 453 is a 3 part situation. You have to: 1 - Fit the fog lights and the wiring loom. 2 - Code the fog light ability. 3 - Fit the replacement stalk. Step 2 - Code The Fog Lights Start DDT4All Read the installation and starting guide here. Coding...
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?
Wheel Bolt Dimensions
450 Wheel Bolts These can be used on all 450 standard factory alloys and steel wheels. Note the radius seat. You should not use tapered seat bolts on a wheel designed for radius seat bolts. 451 Wheel Bolts These can be used on all 451 standard factory alloys and steel...
453 Rear Brake Shoes
Remove the brake drum to reveal the brake shoes. They are held in place with 2 springs and 2 clips. The clips are easy, rotate them around... ...to give more clearance and a more direct route into your eye when they ping off. Lift the bottom of the clip and it'll let...
453 Brake Drum Removal
Loosen the wheel nuts, jack up the car and remove the wheel. The drum is held on with 2x Torx40 screws. Remove them both. You may have to pull the handbrake on hard to stop the drum spinning. Chog the front wheels and then release the handbrake. The drum should then...
Roadster Driveshaft Removal
It is now becoming a more common problem with Roadsters, the ABS rings rust and fail
Paint Your Driveshafts
Drive shafts are rusty, the end.
450 Driveshaft Removal
It is now becoming a more common problem with older smarts, the ABS rings rust and fail
450 Fortwo Rear Bearings
If you fit larger alloys there is a good chance that after a few years one or more of your wheel bearings will develop a squeak. The squeak will get worse and eventually the whole thing will seize.
Roadster Rear Bearings
Loosen the wheel bolts, jack the car up and remove the wheel. Use a Torx30 to remove the drum fixing. Release the handbrake and pull the drum from the hub. With the car in reverse the driveshafts are locked. Use a 21mm socket to remove the centre bolt. You'll need a...
Fitting New Reluctors
How to fit reluctor ABS rings both ways
Roadster Alloys On A Fortwo 450
This question seems to be coming up a lot now by people wanting wider wheels but not wanting to pay silly money for 3rd party alloys.
Wishbone Change Roadster
Hit something or had a little crash and bent the wishbone?
Wishbone Change 451
If you have bent a wishbone in a crash or the bushes are failing, fit a new wishbone.
453 Brake Disc Change
Want to change your discs? Want to fit better discs? Want to fit the thicker discs? Loosen the wheel bolts, jack the car up and remove the wheel. Look around the back of the caliper... ...and you'll find a pair of 18mm bolts, remove these. (105Nm on refitting). The...
453 Brake Hose Replacement
Over time, flexible brake hoses relax and and can swell when the brake pedal is pushed. What you need is steel braided brake hoses to replace the standard ones. Some poorly informed people will tell you that braided brake hoses are a waste of time because the...
Zero Degree Rear Camber
-2 Degrees Of Camber If you look at the back wheels of a 450 fortwo, 451 fortwo or Roadster, you'll notice that the tops of the tyres are further in than the bottom part of the tyres. Like they aren't perpendicular to the ground. That's because they aren't...
450 Fortwo Front Bearings
Replace The Front Wheel Bearings Parts Required: Stretch hub bolt - 0001906V005000000 - 1 per side. Front bearing hub - 0001870V02300000 - 1 per side. Fitting Remove the brake disc and brake calliper. Remove the centre cap to reveal the centre bolt. There isn't much...
451 Fortwo Rear Bearings
Loosen the wheel bolts, jack the car up and remove the wheel. Use a Torx30 to remove the drum fixing. Release the handbrake and pull the drum from the hub. With the car in reverse the driveshafts are locked. Use a 21mm socket to remove the centre bolt. Remove the...