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Discussion Starter #1 (Edited)
The turbos failed last week the car started smoking like crazy and the engine started to sputter and rattle. I had the car towed to the dealer after a week they tell me the engine will most likely need to be replaced due to internal damage. The turbos were replaced and the motor still runs like crap. They are waiting for approval from BMW to replace the engine. Car had 38K miles on it. Will replacement be a brand new engine or used. any thoughts?
Forgive the crap spelling in the title
 

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that's one hell of a dilemma you have in your hands. Unfortunately this can happen to anyone, any brand. On the bright side looks like you are under the factory warranty. As a rule of thumb they swap it with a factory reconditioned motor.
 

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Munchen bound
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My guess is you have damage to the rings on the pistons and valves. Please come back and let us know what they find--I'd be very interested.

So sorry to hear of your problems. That has got to be the worst news I've ever heard about this car yet.

Good luck to you, and keep us posted.

Cheers~
 

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I had a similar problem with the turbos and the smokey exhaust. I took the car in the same day and it took them a month but they had to replace both turbos, two fuel injectors, had to take out the engine and take it apart to clean the carbon deposits. The car has been running great ever since. I hope everything works out and you get your car back soon.
 

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BMW rocks!
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Hammadurb, did they tell you what's the cause? How many miles on your car when it happened? This is making me a little worry and debating if I should do the Dinan stage 1 since my car has almost 30K miles. Or have the dealer check on it before my factory warranty runs out. I do have 100K extended warranty from them, so it would cover this, right?

Thanks!
 

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Well, Dinan warranty doesn't apply to extended warranty, my factory warranty expires next year. :(
 

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Discussion Starter #9
I dont have the Dinan upgrade on mine, from what the SA says, its going to take a while, BMW is recommending they try all sorts of different things before they decide to swap the motor. I do hope i get the car back soon, changing ipod songs on a 328i with no nav screen is a chore.
 

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I dont have the Dinan upgrade on mine, from what the SA says, its going to take a while, BMW is recommending they try all sorts of different things before they decide to swap the motor. I do hope i get the car back soon, changing ipod songs on a 328i with no nav screen is a chore.
Does the dealer have anything nicer? My 750Li was in for a month and after the first week Irvine BMW offered me one of two new 5 series loaners they had.
 

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Alot of the dealers seem to have X5's too. I'm requesting it for the next loaner as I'm considering buying one as a second vehicle when they up-size it for the 2014 model.
 

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Hammadurb, did they tell you what's the cause? How many miles on your car when it happened? This is making me a little worry and debating if I should do the Dinan stage 1 since my car has almost 30K miles. Or have the dealer check on it before my factory warranty runs out. I do have 100K extended warranty from them, so it would cover this, right?

Thanks!
They said the turbos failed and cracked which led to the carbon build up. This happened at 62k miles and it was completely unrelated to the Dinan tuning.

Getting the Dinan tuning does not affect the original warranty or the extended warranty. If the issue was related to the Dinan tuning, then I would have been responsible to pay the bill because the Dinan warranty matches the BMW's 4 year/50k mile but not to the extended warranty.

You can read the original post and I also scanned the receipt for the work which shows everything that was done.

http://www.bimmerfest.com/forums/showthread.php?t=569624&highlight=
 

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Cool, Thanks for sharing, so far I havn't read anything bad about Dinan tuning, maybe I should jump on it! I am planning to get a M5 or the new 7 after my warranty is up, it's really scary to have a 7 that's out of warranty.
 

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it's really scary to have a 7 that's out of warranty.
Two words: extended warranty! I bought mine about a year into its ownership, and I plan to keep this one for several years beyond original warranty coverage. I'm finally (I think) at a point in life where "gotta get a new one-itis" is under control. Not everyone on this board is a multi-millionaire (but congrats to those of you who CAN afford a new one every few years!).
 

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Ive owned a few turbos cars and two failed. THe reason in both cases was a build up of oil bye-products from not letting the them cool down for 60 seconds before shutting off the engine. When the engine is shut, the oil supply stops and what is left on the blades starts to boil off, leaving deposits on the blades and bearings. Cooling then allows the oil to come down a few degrees and cool the bearings and blades.
 

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Ive owned a few turbos cars and two failed. THe reason in both cases was a build up of oil bye-products from not letting the them cool down for 60 seconds before shutting off the engine. When the engine is shut, the oil supply stops and what is left on the blades starts to boil off, leaving deposits on the blades and bearings. Cooling then allows the oil to come down a few degrees and cool the bearings and blades.
Very true, I used to modify cars when I was in my 20s. Turbos, NA tuning, VIPs, went through them all. And one good habit of what I learn is always let the engine cool down for at least 60 secs before shut it down. Pays off in the long run :thumbup:

Would be nice there is a turbo timer made for our cars. :D
 

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Discussion Starter #18
Just picked up a loaner 535i, much better than the 3 series. this is the 2nd week and no word on what the exact damage is or when the car will be ready its still looking like a new engine will be needed. If you have to let the turbos cool before you shut the car off, that mechanism should be built into the car to let it run for a few seconds after you shut off the car. asking a buyer to let a car run for a few seconds before turning it off is not a good selling point.
 

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With older turbos you had to cool them down, also more importantly you had to warm up the motor before driving off.

Nowadays factory turbos in these cars are self cooling, they have coolant and oil cycling through them, even turned off coolant still cycles. I think it's still a good practice to take it easy last mi or so before you turn it off.

As for your replacement or whatever action they want to take, if I were you I would contact with BMW NA, start communication with a rep or someone higher up. You have a pretty serious problem, that may help to expedite few steps

Hope you resolve it soon
 

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Discussion Starter #20
An engine was just ordered today it will be a Refurbished unit, they said a bolt came off the turbo into the engine when it failed. There are metal shavings in the oil pan so im guessing alot of internal parts were affected. The engine will take about 2 weeks to be delivered and a few days to make the swap.
 
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