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Premium Mod 451 Handbrake Adjustment451 ED451 Fortwo

Overview Although the rear brakes adjust themselves, they don't always adjust properly. As the brake shoes wear down, the auto adjusters move the brake shoes closer to the drum so the foot brake travel isn't increased. There is a self adjusting mechanism at the base...

Normal Mod 451 Handle Removal451 Fortwo

The handle is removed or loosened to aid the removal of the door panel or to gain access to the bowden cables that operate the door catch.

Normal Mod 451 Hatch Not Closing451 Fortwo

Your 451 glass hatch won't latch closed, it just springs back open. There are 4 parts to this mechanism. The main catch is what grabs the loop on the glass hatch as you close it. Spray some penetrating lubricant into the mechanism and manipulate the latch back and...

Normal Mod 451 Headlight Pin Out451 ED451 Fortwo

Nearside Headlight (Left) 6. 5. 4  3. 2. 1. v Pin Number Wire Colours Function Function 1 Brown Headlight Adjuster Ground Chassis earth 2 Green/Red Headlight Adjuster Data Headlight stalk pin 11 3 Grey/Yellow Low Beam & Headlight Adjuster + SAM unit plug 3 pin 6 4...

Normal Mod 451 Headlight Projector Fault451 ED451 Fortwo

The Headlight Aims Down And Won't Adjust Up This is very common on the 451 fortwo. The projector becomes loose inside the headlight and because the front of the projector lens is the heaviest part, the dipped beam will aim too far down and no amount of adjustment will...

Premium Mod 451 Heated Seat Retrofit451 Fortwo

There is an easy way and a less easy way to retrofit heatet seats to your 451. It really depends on the year your smart was made. From around 2008 to 2010, smart started to include all the wiring for the heated seats so all you have to do is plug in a few things....

Premium Mod 451 Heated Seat Wiring451 Fortwo

Key:
E = Earth
C4/8 = Connection plug 4, pin 8
Fuse* or F* = Direct connection fuse number
Black Yellow = Wire colour

Modules are labeled in the picture.

Premium Mod 451 Heater & AC Faults451 Fortwo

The new fortwo has a more sophisticated climate control rather than the air conditioning in the 450 and Roadster. More to go wrong.

Normal Mod 451 Heater Blend Flap Motor451 ED451 Fortwo

Clicketty Click Click Click Click Car's on, you adjust the temperature and you get lots of plastic clicking noises and then silence. It's usually because something has got into the cabin heater box and has blocked the heater blend flap. The motor tries its best and...

Normal Mod 451 Heater Controller Disassembly451 ED451 Fortwo

Heater Controller This is the last and hardest part to change the LEDs on because it's awkward to open. Remove the heater controller by following the 1st part of this guide. Set the fan speed to setting 2 and the heat to setting 22. (This lines up internal tabs). Look...

Premium Mod 451 Heater Controller Fix451 ED451 Fortwo

If you are having heater or climate controls issues as mentioned here, site viewer Shaun L reckons he's found the issue. If he's correct, it's a fairly easy fix. This is the potentiometer (pot) that moves with the temperature selector inside the heater controller....

Premium Mod 451 Heater Fan Brushes451 Fortwo

451 Heater Motor Brushes For some reason, it's mainly the American 451s that suffer with brush problems. Dunno why but it does affect non Americans as well. The standard brushes seem low quality and seem to wear very quickly. Probably because the commutator gets a...

Normal Mod 451 Heater Fan Failure451 Fortwo

For some unknown reason, the America cabin heater blower fan fails. I have yet to see this happen outside of the US.

Normal Mod 451 Heater Fan Removal451 ED451 Fortwo

Many owners are experiencing faults with their blower motors. Mainly American smarts unusually.