if its gone bang and its just jammed or spat bits into the exhaust, it can be rebuilt or get one off ebay... looking at 3-5 hours labour and the cost of a recon turbo, even if its got the manufactures part numer on it it ws probably made by Garrett
if it has gone bang and shot bits into the inlet.... less likley as its the exhaust side that takes the grief, then the engine will need a rebuild and its probably not financially viable if the car is older than say 5 years. second hand cut out engine from a rear end shunt at the breakers yard, re-programme all keys to the new ECU flog your old one off in bits, its a pain, its often not worth doing unless you want to do it yourself
they go bang for 2 reasons
1) The car has 100-150,000 miles on it, lead a hard life (ex fleet and rental cars) and the turbo thrust bearing wears allowing the turbine to hit the housing
2) The bearing faces in the turbo wear out, possibly due to blocked oil feed, allowing the turbine to hit the housing
the oil feed gets blocked thus...
you run the car reasonably hard and switch it off directly afterwards, in this case the oil in the turbo bearings toasts and goes like burn't on chip fat ,eventually blocking the flow of oil, or if really red hot the main shaft bends(only really when you soup it up and run high boost)
you wear the bearing thus...
spank it away from every stop before the temp guage reaches middle (oil starts working properly)
or
you let it run low on oil which wears the oil out in double quick time, it gets very thick when cold very thin when hot and doesn't lubricate anymore .
you don't have to have done any of this just somone in its past, or you got a turbo made on a friday afternoon
if you let them warm up at start up, and relax for 30 seconds before switch off you'll get 200,000 miles out of a modern turbo diesel...1.6 litre ford focus turbo diesels suffer from this proplem...or maybe 1.6 litre ford focus drivers suffer from this problem
not lecturing. just a fact of life and turbo care is one of the things they just don't tell you.
its boring but may i suggest a 2 litre TDI octavia 1000s of taxi drivers can't be wrong. its just an audi A3/A4 with a different body lower service costs and more plastic. 600 miles+ to the tank.
don't get an alfa, lovely cars but they make you cry by 70K miles,
hope it all works out
Dave
chrismoyles.net
