Hi, thanks for your reply. I had the EGR cleaned at my mates garage, so i'm unsure whether the pipe was cleaned too, but I will ask. I have actually already tried a DPF clean in the tank, which did blow a lot of crap out, but i'm quite sure that that isn't the problem anymore. The smoke is quite white, so it's not like pure soot particles that are getting blasted out. Toyota said they'd checked everything. But prior to me taking it there I had it in a garage on a scanner that told us that the DPF wasn't blocked. I'm unsure if a tuning box is fitted (i'm not great under the bonnet I have to admit!), or whether the car is running the latest ECU software, but I presume it is? I'm a motor trader and bought the car from auction, so i've got no-one to go back too unfortunately! Anyway, I spoke to a local diesel specialist that i've used a couple of times previously about it to see if he had any ideas. And he said, that he has seen a very similar ocurence with Mercedes Sprinter vans, and what sometimes happens is that one of the injectors could be leaking too much fuel and it builds up and then all that fuel burns off in one big burst which obviously causes the car to smoke and smell like it's over fuelling (which my car does), so he's going to bench test the injectors to see if any of them are faulty and then we can go from there. Only thing is that he's shut now until Jan 2nd! Ah well, i'll just have to wait. What do you think of his analogy? Regards, Karl.