This is very similar for the 450 CDI and both models of 451 Diesel. This is for a 45bhp 451 CDI which is almost the same as the 450 CDI. The 54bhp CDI has a throttle body connected to the left side of the inlet manifold. The air inlet manifold is held to the engine...
Smartmods
for all your modding needs, recommended by Evilution
Kane Harrison
Changing A Wheel
There's no excuse for not knowing how to change the wheel on your smart.
Changing Exterior Bulbs To LEDs
Here is a question I have been receiving more and more. "Can I change all of the bulbs in my car to LEDs?" The answer to that question is yes. However, the better question is "Should I change all of the bulbs in my car to LEDs?" The answer to that one isn't a straight...
Changing Glow Plugs
How to change the glow plugs in your smart fortwo.
Changing Interior Bulbs
This page now covers the Roadster, old fortwo 450 and the new fortwo 451. Roadster Lever the side of the bulb diffuser down. Slide the unit to the left. Squeeze the two plastic clips shown below. Slide the bulb and its holder to the right. You can now pull the bulb...
Charge Cooler Fluid Change
This probably isn't the information you think it is. However, it's more important. How Do I Drain The Charge Cooler System? See, this is the information you thought was going to be here but really, it's not. All you have to do is take a pipe off the charge cooler...
Charge Cooler Fluid Info
Just in case you can't read German
Cheap BOSE Sub
There are a lot of small amp/sub combos but you have to pay a lot for anything reasonable with a name you recognise on it.
You can buy no-name cheap compact/under-seat subs but are they going to be any good?
How about an excellent name in audio? How about a sub from BOSE that costs half the price of a cheap sub?
Check Valve Bleed Nipples
Do you want an easy way to bleed your brakes? Well it doesn't get easier than this.
Checking ABS Reluctor Rings
The ABS (reluctor) rings are now becoming a common problem on the smart.
Checking the Oil Level
The oil in your car keeps things moving and not melting into one big part.
Checking Wheel Bearings
When bearings begin to fail, you will hear it first and eventually feel it. The problem is that a failing bearing can sound like other problems at first, such as a stone in the tyre tread, corrosion on the brake discs or failing ball joints. How Do You Know If It's...
Clean Your Air Conditioning
Air conditioning removes water from the air, reducing humidity and allowing you to sweat to keep cool. It can also cool the air in summer.
Cleaning Silicone Pipes
Being in the engine bay, silicone pipes get a bit dirty over time. Let's clean 'em.
Cleaning Your Smart
If something’s worth doing, it’s worth doing properly!
Clips And Fixings
Photo & Part Number 0001791V000000000 0009222V000000000 0014670V000000000 Q0006449V001000000. - Used on 450 arch liner and rear lights. A0009912098 0010676V000000000 0007371V000000000 No yet known A0059900412 A0009982285 A0009982485 A0009905492 A0059906912...
Clutch Adjustments
The clutch actuator pushes the arm that moves the clutch in and out.
Coding DAB To 453 R-Link Stereo
If you have the R-Link stereo and don't have DAB radio, you can probably* code it with DDT4All for free in about 5 minutes. Older models of 453 may not have the hardware but that's covered later. This was in a car I was playing with. It had the R-Link stereo but no...
Coil Pack Removal
The coil packs convert the car battery power to a high voltage, low ampage current that is sent to the spark plugs via the HT leads.
Cold Air Feed Or Not?
F*** you I won’t do what you tell me.