Catch Removal Remove the front panels and remove the grill. As you have removed the bonnet already, you'll see the catches. Push the clip in on each side. This is the facelift type. The older type are similar and shown later. Pull the catch off of the stalk. ...
Smartmods
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Kane Harrison
451 Bonnet Opening
The new smart has an easily removable front panel making the access to the light bulbs and fluids much easier.
451 Boost Gauge
451 Turbo Boost Gauge The 451 turbo petrol engine doesn't have the accessibility as the previous 450 Suprex engine. The throttle body is tucked away, the air inlet manifold goes down the back of the engine and all of the useable post-throttle body pipes just aren't...
451 Boot Divider
The roller blind style boot cover came in a + version with a cargo net that required new fittings to be fitted
451 Boot Flap Catch Removal
If one of the catches on your boot hatch fails, you'll need to know how to remove and replace it.
451 Boot Hinge Pins
The 451 is getting old and despite being hidden away, it's becoming more common for the boot hinge pins to rust and snap. Firstly we need to detach the boot from the car to get reasonable access to the hinges. Undo the boot straps on both sides by removing the Torx40...
451 Boot Light
For some reason, smart decided to leave out the rear courtesy light. It was obviously a cost cutting exercise but with a bigger boot and dark materials, it really needs a light.
451 Boot Panel Removal
Removing the rear panel
451 Boot Release Button
For some reason, smart thought it was a step forward to omit an interior boot release button on the 451. Idiots. Let us add what they took away.
451 Boot Side Net
Did you know that a net was available for the pointless removable alcove in the boot? It was available from smart along with a boot floor net. See 150 below. The smart part number was A451 814 00 07. This is the part we are fitting. It's fairly basic, you may be able...
451 Boot Side Removal
How to remove the interior side panel from the boot of a 451.
451 Boot Switch Change
The boot opening handle switch was one of the first repeating problems when the 451 was released in the UK. What made the problem worse was the lack of stock that smart had, this meant a long wait.
451 Boot Switch Faults
The 451 boot release switch is problematic and will slowly become a common problem. These issues come in 3 forms. 1 - Broken Mechanism 2 - Faulty Switch 3 - Damaged Wiring 1 - Broken Mechanism The actual switch is fine and well hidden. For the number of times you open...
451 Brabus Front Splitter
Fit a Brabus front splitter to your 999cc smart fortwo 451.
451 Brake Caliper Removal
First of all loosen front wheel nuts, jack up the car and place the axle stand securely. Lower onto the stand. Check for security of car on stand - you're going to be working on it! With the wheel removed it will look like this. You are now going to remove the...
451 Brake Caliper Seals
Back in 2014, Dave from Brakes International was good enough to send over a calliper rebuild kit. I was supposed to do a fitting guide and send people over to his shop to buy the kits. Unfortunately I'm useless at remembering to do stuff like that. The kit got stored...
451 Brake Disc Fitting
Jack up the car and remove the wheel. Look over behind the brake calliper, you'll see 2x 18mm bolts, remove these. 115Nm on refitting. Place the calliper on top of the hub so the brake hose isn't being pulled. Remove the Torx30 bolt. (M6, 1mm pitch, 10mm long)...
451 Brake Light Switch
Rarer on the 451 but they have been known to fail
451 Brake Light Wiring
Key:
E = Earth
C4/8 = Connection plug 4, pin 8
Fuse* = Direct connection fuse number
Black Yellow = Wire colour
Modules are labeled in the picture.
451 Brake Master Cylinder
Depending on what you want to do, you can remove just the master cylinder, the master cylinder with the vacuum brake booster or the entire brake pedal assembly. Firstly, drain the brake fluid from the system. You will need MB Star Diagnostics to refill the system...