Thread: smart 4 two anyone got one?

I changed the plugs in one last year. Fun things when they're going well, but noisy, harsh and bouncy. The engine I changed the plugs on was fouling them up with oil, not sure what the problem was and it didn't have a lot of mileage on it. Turbo failure possibly. To get at the back 3 plugs (its a twin spark) you remove the entire rear bumper assembly. The plugs are a unique 12mm thread long reach design, cost heaps. The electronically controlled semi manual trans is totally weird to drive but I guess you could get used to it. When you select the next gear the ECU cuts the throttle for a couple of seconds and reapplies power when the next gear is fully engaged. On two cylinders with a miss they hardly move as they can't get onto boost.