Shops quote $2,900–$3,200 for this one, and the quote usually isn't the ripoff, the job really is that big. Here's what's actually failing, what the correct repair involves, and the honest part: this is not a job I do in a driveway.
The VR30DDTT twin-turbo V6 in the Red Sport cars has a design quirk with real consequences: there's no recirculation path for boost when you lift off the throttle. Snap the throttle shut at full boost and the compressed air has nowhere to go, it slams backwards through the compressor wheel. That's compressor surge, and every aggressive throttle lift hammers the turbo's shaft and thrust bearings with it.
Bearings beaten by surge develop play. Shaft play lets the compressor wheel wobble, the whistle under boost grows, and the oil seals on the turbo shaft start leaking, engine oil gets drawn into the intake and burned, which is the blue smoke and the sudden jump in oil consumption. As the turbo loses the ability to hold its target pressure, the ECU logs P0299 for underboost. Dealer technicians replace these turbos week in, week out; it's one of the best-known failures on the platform.
Running a failing turbo isn't a stable situation. The wobbling shaft eventually lets the compressor wheel contact its housing, shedding metal into the intake tract, while the leaking seals keep feeding oil into the charge pipes and intercoolers. The longer it runs, the more of the intake system needs cleaning or replacing along with the turbo, and oil consumption that goes unwatched is how engines get hurt.
If your Infiniti is doing any of these, this is the likely cause:
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See how that range compares across Mississauga, Oakville, Milton, Brampton and Etobicoke in the GTA Repair Price Index, honest shop & dealer ranges for the jobs people actually get done.
Turbocharger Replacement & Oil Service is on my published list of jobs I turn down. It needs a hoist, a press or a machine shop, and I work out of driveways with hand tools. That list is public on my trust page. I'd rather lose the job than learn it on your engine, and you should be suspicious of anyone who says yes to this over the phone.
So here's what I can genuinely do for you, holding a $2,900–$3,200 quote. Both are real, both are flat-priced, and both are worth more than a bad yes.
Before you spend $2,900–$3,200, have someone independent confirm that's actually what's wrong. This is a diagnosis, not the repair, no hoist, no lift, nothing comes apart. I scan it, test it, look at it with you, and tell you straight whether their diagnosis holds up. If it does, I say so and you go pay them with confidence.
Book the second opinion →At $2,900–$3,200 on a car that might be worth not much more, plenty of people replace instead of repair, that's a completely reasonable call. If that's where you're heading, get the next car measured before you hand over money: 150 published points, at the seller's location, written report the same day.
Book a pre-purchase inspection →Tell me what you've been quoted and what the car is doing. $100–$250 flat, at your location, and you get a straight answer either way.
Rather just have the quote read? The free quote check tells you whether the number is in line, no visit needed.
Jobs on this car that ARE mine:
Not so you can do it yourself, so you can tell whether the shop quoting you understands the job:
That's the job. It's why this one belongs on a hoist instead of in a driveway, and it's why $2,900–$3,200 usually isn't a ripoff, it's a big repair honestly priced. What's worth checking is whether that's really what your car needs.
Get the diagnosis confirmed firstPlain version: Turbocharger Replacement & Oil Service needs equipment a driveway doesn't have, a hoist to get under it properly, a press or a machine shop for the parts that come out, and a controlled space for an engine or gearbox that's in pieces for days. I work out of driveways with hand tools. That's not false modesty, it's the published limit of what I take on, and it's listed on my trust page alongside the warranty.
What that means for you: this page is here to tell you what's failing and what it should cost, so you walk into a shop knowing the job instead of nodding at a number. And if you want that number checked before you pay it, that part I can do, $100–$250 flat, at your location.
A turbo with bearing play is on a countdown. The wobble grows until the compressor wheel touches its housing, at that point it sheds metal into your intake, and oil from the failed seals has already coated the charge piping and intercoolers. What starts as a one-turbo job grows into a turbo-plus-cleanup job, and unchecked oil consumption is its own engine risk. The whistle is the early warning; the smoke is the late one.
Not automatically both. We check the twin for shaft play and seal weep while everything is apart, if it's healthy, it stays; if it's starting to go, doing it in the same visit saves repeating the labour. You get the honest assessment either way, before you decide.
Turbo bearings are fed by engine oil and spin at enormous speeds, a failing turbo also sheds debris into that oil. Fresh oil and a new filter at install protects the new turbo's bearings from day one. Skipping it is how replacement turbos die young.
No. Turbocharger Replacement & Oil Service is on my published list of jobs I turn down, it needs a hoist, a press or a machine shop, and I work out of driveways with hand tools. I'd rather lose the job than learn it on your engine.
Two things, and both are real. A second-opinion diagnostic at your car, $100–$250 flat, at your location, so somebody independent confirms that's actually what's wrong before you commit to a $2,900–$3,200 repair. And if you're weighing replacing the car instead of fixing it, a pre-purchase inspection on the replacement, $149–$399 flat, at the seller's location.
Because the useful part isn't the wrench. It's knowing what's actually failing, what the correct repair involves, and that shops quote $2,900–$3,200 for it, so you walk in knowing the job instead of nodding at a number. If you want that number checked before you pay it, that part I can do.
Send it over for a free second opinion. I'll tell you straight what the job actually involves, and if their quote is fair, I'll tell you that too.
Get a Free Second OpinionOther makes:
I'm not the guy who does this repair. I'm the guy who tells you whether you actually need it, before you spend $2,900–$3,200. Second opinion at your car, $100–$250 flat, in Mississauga, Oakville, Milton, Brampton and Etobicoke.
Book a Second Opinion Inspect a Replacement CarYour options on this one