Excessive smoking from exhaust

[shellysexbomb]

Car is running fine, but the amount of smoke means it is not drivable as it is impossible to see behind, and obviously signifying that something is not right. Its 2005 206 sw hdi 1.4, with 41k on it. Had service about 6 months ago. Been suggested it may be turbo. Hubby thinks the smoke is a little bit blue but I would say light grey and smells of burnt diesel. Gone to garage and its squeeky bum time for me.....anyone have any ideas how much this is going to cost? Arm and leg cover it?

[Enright]

Um, you might struggle to get much joy for info on that engine here - being the CC forum most of us have either 1.6 or 2.0 petrol models.
I guess it depends on the colour of the smoke though. If it's blue then it's oil, and that could be very expensive.
Water produces white steam, which if it's head-gasket failure can be equally expensive.
However there is a silver lining here, being as you have a diesel:
If the smoke is black, then it's unburnt fuel, and could be as simple as an intercooler hose that's popped off, which will cost virtually nothing to put right.

[Capncol]

First a lesson in diesel smoke.
Black= incomplete combustion- caused by blocked air filter, faulty injector, low compression, faulty air pipes, faulty turbo.

White= Unburnt diesel- caused by no or very low compression, faulty head gasket, burnt valve.

Blue= Burning oil- caused by faulty turbo seals, wrong grade of oil, too much oil, worn piston rings, worn valve guides and/or valve stem seals

Grey=Normal diesel smoke which happens at start up but should clear soon after. May be caused by slightly dirty injectors. Most HDI / Commmon rail diesels don't smoke as much as earlier types due to their design.

If you have grey smoke, try Diesel injector cleaner. Run it low on fuel (< 1/4 tank) and put a whole can in and drive hard for at least 50miles before topping up with fuel (drive it like you stole it) this will get engine really hot and help burn off any residue in engine / exhaust.
If it is blue, check your oil level isn't above max on dipstick and report back here.

[shellysexbomb]

Hi guys, thanks for you replies, turned out to be the turbo so my bank account is now £750 lighter and I now have another problem (
Airbubbles in fule pipe next to primer, starting but cutting out till primed. No leaks, fuel filter changed. Fault codes (when eml on, its not always) 01113 and 0087 ((

[Capncol]

P1113 & P0087 both relate to fuel pressure. If you are getting air in the pipe, that could give those codes. I would start by checking entire fuel line from pump to tank (could it of been damaged when fitting new turbo?) then check the rail pressure reg seals. If you still have no joy, then book it into a diesel specialist for a leak off test.