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Discussion Starter #1
I have just bought a 307 1.6hdi with 70k. When I started it there was white/grey smoke from the exhaust which turned into a cloud when revved hard. On the 20 mile journey home the smoke cleared and wasn't visable in the mirror or to the car behind when revved hard ?
How do I decide if its the turbo or not (replace one last year on a C4 1.6 hdi but that had collapsed and was noisey, this isn't)?
Other issues are a slight hesitation around 1800rpm and the temp gauge only gets to 80deg ( stuck open thermostat?)I have lexia but didn't have it with me.

Could it be an air leak or injectors etc or how do I check the turbo?
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