453 Accelerator Pin Out Accelerator Pin Wire Colour ECU Connection Function 1 Pink/White or Grey/White F3 Pedal Sensor 2 - Signal 2 Brown/White F2 Pedal Sensor 2 - Positive 3 Green G2 Pedal Sensor 1 - Positive 4 Brown or Grey H2 Pedal Sensor 1 - Signal 5 Brown or Pink...
Smartmods
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Kane Harrison
453 Active Brake Assist Fault
You get in your car, start it up and get stabbed in the eyes with a big error message about the active brake assist being inoperative. You click OK and the message goes away. However, there's still an error light showing on the speedo. The issue is the front radar...
453 Air Con Fill Points
If you need to fill or top up the air conditioning in the 453, open the bonnet. Here are the fill points. AC Gas Type And Quantity Model Gas Type Gas Qty Grams Oil Type Oil Qty Millilitres 450 Fortwo 600cc R134A 620 ± 10 PAG 46 or PAO 68 180 450 Fortwo 700cc R134A 450...
453 Air Filter Change
This is the engine of the 453. The airbox is over on the left. Look down the back of the airbox... ...and you'll see 2 Torx25 screws. Remove them. You can use a 7mm socket to undo the hose clip that holds the pipe to the airbox lid. Disconnecting this pipe will allow...
453 Airbag Removal
This page currenly only covers the removal of the steering wheel airbag. This page covers 2 methods. Rule 0 when playing with airbags, disconnect the earth connection from the battery. Make sure it can't accidentally move and touch the earth connection. Don't...
453 Alarm Fault
Bob S was one of the many people experiencing the alarm on his 453 going off all the time. It's already a known fault at smart so we know the problem. The problem is the switch. The switch is pushed in by the bonnet (hood). If the bonnet is removed or tampered with,...
453 Alloy Wheels
453 Fortwo & Forfour Specific Alloys (late 2014 on) - 4 stud alloys C453 & W453 Steel Wheels 15" Offset PCD Tyre Size Centre Bore Front 5" ET 32 4x100mm 165/65/15 60mm Rear 5.5" ET 42 4x100mm 185/60/15 60mm C453 & W453 'Value' 15" Offset PCD Tyre...
453 Android Stereo
Whenever anyone on the forums asks about a new stereo on the 453, people will always recommend the nameless Chinese made 9 inch Android stereo that's available all over AliExpress and similar China based e-commerce sites. They all look the same so I suspect they are...
453 Arch Panel Removal
Remove the front bumper so you can access a bolt later on. Open the door and look at the lower part of the door shut. These bolts are 10mm with a Torx30 inside. You can use either size tools to remove them. Look to the top of the door shut to the black triangle in...
453 Arm Rest Removal
Pull the seat forwards and fold the seat out the way a bit. There's a access panel on each side... ...so lever those off... ...to reveal the the 4x Torx40 bolts. Make your way to the top. Lever the SD card/USB panel out... ...grab it and lift... ...and disconnect the...
453 Audio Gateway Control Unit
Audio Gateway Control Unit N93/1 Pin Number Wire Colour Function Connects To 1 Green/White Multimedia Controls On/Off Screen Knobs Pin 2 2 3 Red Power Circuit 30 Fuse Box Fuse 14 4 5 6 7 8 9 10 11 Pink/White Multimedia Screen On/Off Screen Pin 5 12 Black/White...
453 Auto Headlights
Retrofitting Auto Headlights To The 453 Pre-Facelift (Nov 2014 - Oct 2019) First you have to fit a new headlight stalk, click here. You can't just use any old light stalk, it must have the word "auto" on it. From what I can tell, all 453 models already have the...
453 Auto Wiper Coding
Retrofitting Auto Wipers To The 453 Pre-Facelift (Nov 2014 - Oct 2019) This is a 2 part retrofit. First you have to fit a new wiper stalk, click here. You can't just use any old wiper stalk, it must have the word "auto" on it. Luckily, all 453 models already have the...
453 Battery Removal
Petrol 453 Fortwo & Forfour On the 453, the battery is under the bonnet (hood), unlike the previous fortwo models. I have attached a Ctek trickle charger lead to my battery. You won't have these cables. On the negative side, you can either remove the 10mm nut and...
453 Belt Change
Post yourself under the car on the right hand side. You'll see a cover that partially covers the crankshaft pulley. This sucker has got to go. Grab yourself a 10mm socket and take out all of the bolts that hold the cover to the engine. Get off the floor (make all of...
453 Bonnet Lock
Despite being in the manual, very few people know that you can lock the bonnet/hood on the 453. Look at the front of the car, over to the nearside, you'll see a hole. Put your key into the hole (it won't go in very far) and use the key to lever this cover out. It can...
453 Bonnet Panel Removal
Look in the front grill and you'll see a lever on each side. Pull the both forwards. You'll notice the bonnet panel move slightly. Pull the panel forwards... ...and lift the panel from the car. It will hang safely from straps on the front of the...
453 Boot Hatch Removal
Official Method Remove the boot panel to reveal the inner gubbins. (that'll confuse non English speakers). Look bottom left and you'll see an electrical connector, disconnect it. Push the rubber conduit grommet through the panel. Remove the straps from either side...
453 Boot Panel Removal
Press the button on the handle and open the glass hatch. Lift the handle to release the lower section of the boot. Remove the boot catch cover by lifting and pulling. These fall off with the slightest touch so you've probably accidentally removed this part before....
453 Bosch Stereo Pin Out
Bosch "Smart Media-System Connect" Connector A Pin Number Wire Colour Function 1 2 Grey/White CAN Bus High 3 Brown/White CAN Bus Low 4 Pink On/Off Signal Audio Gateway Controller Pin 11 (Amplifier pin 11, if present) 5 6 7 Red/Brown Fuse 26 8 Black/Brown Ground/Earth...