Raise your hand if you've blown up an N54!
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Wow! So what did they say about toting your engine around instead of building it?
I told them that crap has come to an end and that they had 2 weeks to finish my motor and ship it or i'll would be forced to hire legal council. They apologized and said ok it will be done. So we shall see. This is the last week. I'm hoping for the best, I've waited more than long enough. Soo frustrated
Mourad is on vacation til the 11th so I would expect a delay. I called them today because we are waiting on some important parts, they checked on them, and are going to call me back tomorrow. Mourad tries to stay on top of things the best he can
Yes i've been in contact with Mo. He's a great guy and deserving of a much needed vacation but Paul is still there and he's building the motor. Tony should be overseeing everything so things should be moving along.
I think I'd be even more pissed that all they needed was that phone call... I don't know VAC but I'd like to hear their side of things.
Ask them why. So many people on the forums have been asking me why it's been taking so long and i'm embarrassed to say. Even my coworkers are convinced I sold my car.
70k
Dinan 3
Sprint booster
Hit a massive pothole 40mph.
Then a few minutes later punched the pedal with sprint booster on level 3 amd heard a crackly sound...limp mode and engine light. Drive to dealer from houston to austin....6 hrs
Later dealer calls to tell me new engine has been ordered.
Apparently the catalytic converter internals got damaged and sucked into engine circulating and ate up the innards bad. Also found rod 4 bearing was gone to heaven.
Ran perfect for years - before that.
Dinan 3
Sprint booster
Hit a massive pothole 40mph.
Then a few minutes later punched the pedal with sprint booster on level 3 amd heard a crackly sound...limp mode and engine light. Drive to dealer from houston to austin....6 hrs
Later dealer calls to tell me new engine has been ordered.
Apparently the catalytic converter internals got damaged and sucked into engine circulating and ate up the innards bad. Also found rod 4 bearing was gone to heaven.
Ran perfect for years - before that.
Your scenario is not possible. Sounds like you got taken for an expensive ride for a bullshit reason.
Here we go again...
It was under warranty and they showed me the while thing.
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I think he is basing that assumption on to the fact that the cats are after the turbos and the only thing after them is the mufflers. So unless your exhaust dumps out in front of your intake with no cone then that doesn't sound likely. At least in the way you've explained it.
Well that was what I thought too. Until I saw the cat meterial inside the engine and engine oil. And so did all the techs... they were confused and they could only theorize that somehow that cat material got pushed back into the engine because of a freak back pressure moment.
Can't argue with reality even if technical knowledge says otherwise. Unless I cut open the cats and stuffed the innards into the oil hole there is no other way that the material could have gotten into the engine and oil.
That's more plausible than your original statement. Maybe not you, but somebody from the dealership.
Something about engine vacuum pulses and back pressure in a very rare event...caused some of the honeycomb to get into the engine after the cats were damaged internally from the 40mph pot hole hit.
Who knows. But all you guys sitting in your armchairs pointing fingers based on your book or street knowledge weren't staring at cat material in an engine and oil pan with cat material.
And I doubt the techs would purposely damage the engine just to replace it for free.
Apparently this has happened before to other makes and models.
I worked at a dealership in my younger years and you have no idea what some techs will do to get billable hours. A dealership doesn't care if the work is warranty work or not. They still get paid, less hours under warranty, but that beats no hours when you're slow.
As far as attitudes go, you're the only one here lashing out at people, bro.
I have seen this happen firsthand. More than once actually.
First time was an s54 (e46 m3 engine). Customer got a CEL and very strange running issues after a track day. Brought it into us and we had a hell of a time figuring out what the issue was, as compression was on low end of the allowable spec. Other than a rough run situation on a cold start. Cold compression was low, but would only slightly increase with oil being put into the cylinders (Wet compression test) . Upon dismantling, catalyst material was found in exhaust PRE-CAT, and what happened was the exhaust valve seats were not sealing properly. I cannot remember at this point whether there was catalyst material in the engine oil or not, but it would seem likely that there was some there.
Second one was on an N55, newer production in an X6. Came in with turbo whine. Removed Cat while replacing turbo to find it badly damaged, further inspection found again, exhaust valve seal wear w/ minor scrubbing/scraping on the cylinder walls, and fine metallic material in engine oil.
It does happen, if I knew why then I would try to explain it better. But @matreyia is not crazy or getting hosed. IT can and HAS happened.
I have no idea how cat material was in the oil or engine... I just reported it and all these fuckers go apeshit.
There has to be some sort of explanation as to why it happened. I too, was in complete awe. My analytical mind did something similar to some of these responses the first time I observed it.
Reality is that it can happen, until exposed to these situations I would have not believed it either.
My speculation would be that it would be a high heat situation in the catalyst followed by a misfire. Uneven pressure pulses (possibly vacuum) from the lack of combustion combined with a hot and weakened Cat material would allow the material to travel backwards for a short period of time. BUT, I'm just a mechanic.
@matreyia are you getting or did you get new turbos and oiling system components when they replaced the engine?
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