Notices
Macan 2014-Current

2023 Four Cylinder engine failure

Thread Tools
 
Search this Thread
 
Old 02-24-2023, 09:46 PM
  #16  
cmitch
8th Gear
Thread Starter
 
cmitch's Avatar
 
Join Date: Jan 2023
Location: North AL by the river
Posts: 8
Likes: 0
Received 10 Likes on 4 Posts
Default

Conclusion: Porsche of Nashville and my friends have come to an agreement that this has gone on way too long, that the thrill is gone and any feelings for this vehicle, which is still undergoing repair, are finished. Porsche has chosen to refund full purchase price and apply it to a new vehicle that really is much nicer. Larger wheels, suede leather, marble white, and several other upgrades. They drove the new one home today and seem to be extremely happy with the outcome. They have nothing but good things to say about Porsche of Nashville.
The following 5 users liked this post by cmitch:
boyce89976 (11-15-2023), ByByBMW (02-25-2023), mdrobc1213 (09-16-2023), T3X4S (02-25-2023), wwahl (02-24-2023)
Old 02-25-2023, 02:52 PM
  #17  
VAGfan
Pro
 
VAGfan's Avatar
 
Join Date: Dec 2021
Posts: 580
Received 298 Likes on 196 Posts
Default

We will never know the root-cause of the failure.....
Old 03-23-2023, 08:42 AM
  #18  
cmitch
8th Gear
Thread Starter
 
cmitch's Avatar
 
Join Date: Jan 2023
Location: North AL by the river
Posts: 8
Likes: 0
Received 10 Likes on 4 Posts
Default

Originally Posted by VAGfan
We will never know the root-cause of the failure.....
Actually, I found out just yesterday the root cause of the failure. The dealer contacted them, which surprised me since they’ve already gotten into another one. Dealer said new engine was installed. One of the service guys was given the car to drive around. Within the first day, same thing happened. Warning lights were on dash for reduced power, etc. They brought it back in Tuesday. It turns out it was a solenoid that controls upper engine oil pressure. Nothing wrong with the engine. Never was. They said if they’d been given the car back, the same thing would’ve happened again. They’re waiting on part to repair it and I guess it goes back on the lot when it is finished. I’m puzzled that with all that diagnostic equipment, they didn’t find it sooner.
The following 2 users liked this post by cmitch:
IndigoInkTaco (11-24-2023), Van Larson (11-24-2023)
Old 03-23-2023, 12:49 PM
  #19  
VAGfan
Pro
 
VAGfan's Avatar
 
Join Date: Dec 2021
Posts: 580
Received 298 Likes on 196 Posts
Default

This does not make total sense....the first engine was opened up, the dealer claimed they took the head off and found that the "piston walls were scored". (more likely cylinder walls)
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?

And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????

Last edited by VAGfan; 03-23-2023 at 12:55 PM.
The following users liked this post:
boyce89976 (11-15-2023)
Old 03-23-2023, 01:01 PM
  #20  
Petza914
RL Community Team
Rennlist Member
 
Petza914's Avatar
 
Join Date: Oct 2007
Location: Clemson, SC
Posts: 25,999
Received 6,582 Likes on 4,186 Posts
Default

Originally Posted by VAGfan
This does not make total sense....the first engine was opened up, the dealer claimed they took the head off and found that the "piston walls were scored". (more likely cylinder walls)
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?

And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
It will be. Engines last about 15 seconds without upper cylinder lubrication. Unless that Tech shut it down immediately based on the oil pressure warning, that's not one you want to own either. Hopefully it will be CPO'd for the next owner.
Old 03-23-2023, 02:58 PM
  #21  
cmitch
8th Gear
Thread Starter
 
cmitch's Avatar
 
Join Date: Jan 2023
Location: North AL by the river
Posts: 8
Likes: 0
Received 10 Likes on 4 Posts
Default

Originally Posted by VAGfan
This does not make total sense....the first engine was opened up, the dealer claimed they took the head off and found that the "piston walls were scored". (more likely cylinder walls)
Then they put in a new engine and the same symptoms occur (warning lights, reduced power....), and now the dealer claims "it was a solenoid that controls upper engine oil pressure".
So, if it was an oil pressure problem (because the oil pressure control solenoid failed), why wasn't the new engine also severely damaged?

And, why wasn't there a low oil pressure warning on the dash when this all happened...the owner and the dealer didn't notice this????
I agree. Nothing about this makes any sense to me either. I acknowledge these engines come in a crate stripped so it isn't a foreign idea that they switched the bad part to the new one. What I don't understand is why it wasn't found sooner. I don't believe the old engine or even the new one was 100% oil starved all the time. But when the solenoid did quit working, there is not doubt the engine would be laid to waste in seconds. I wouldn't want it either, CPO'd or otherwise. Warranties are just not any good when you're stranded in a bad spot in the wee early hours of the morning. Since I am more knowledgeable about Mercedes and I know absolutely doodley squat about these, I won't pretend I even understand what they are talking about. Just relaying the info as I heard it. At least they no longer own the car.

Last edited by cmitch; 03-23-2023 at 02:59 PM.
Old 03-23-2023, 07:12 PM
  #22  
threeOh
Advanced
 
threeOh's Avatar
 
Join Date: Mar 2004
Location: South Florida
Posts: 65
Likes: 0
Received 0 Likes on 0 Posts
Default

“Did you drive this car, like really hard, since the problem seemed to occur on acceleration? That’s when the problem seems to occur is when you get on it.”

1,000 miles into a breakeven period. And did anyone go with the dealer's employee to watch him drive it really hard?

Fortunate outcome. Good dealer, I bought my 3.2 there.

Last edited by threeOh; 03-23-2023 at 07:14 PM.
Old 08-26-2023, 07:11 PM
  #23  
bspindler
1st Gear
 
bspindler's Avatar
 
Join Date: Aug 2023
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default 2023 Four Cylinder Engine Failure

Originally Posted by cmitch
Good friends of ours just purchased a 23 Macan 6 weeks ago. It just turned over 1000 miles. They visited North Georgia this past weekend and on the way there, the car began to slow and a low power warning came up on dash and car slowed on its own to about 40 mph. She called dealer in Nashville and they told her to clean a sensor on front of the car which she did. Cranked it back up and all was well for about twenty minutes. Then it happened again. This was outside of Blairsville, GA so she decided to take it to the Atlanta dealer. The warning went away after each restart. She limped it in, they checked it out and could find nothing wrong and basically shooed her away. It did it once more when they got to Cleveland, GA. They stayed the weekend at a friends in Sautée and didn’t drive the car until they left on way back to Nashville this past Monday. It gave them the low power warning several times but managed to get it to Nashville dealer. This is where things go south. They diagnose it as a bad sensor and replaced it, told them car was ready to go and they handed them the fob. That’s when her father spoke up. “Did you drive this car, like really hard, since the problem seemed to occur on acceleration? That’s when the problem seems to occur is when you get on it.” They said no but they would so they left with it. They were waiting a really long while in waiting area and service manager came in with an unpleasant look on his face. “Well, what did you find out?” my buddy asked.
”It’s not good. Not good at all. Your car is broke down further down the road and we are getting it towed back. We were driving it back and we noticed engine getting louder and then it quit. Complete engine failure. Locked up.”
So they waited until it was towed back in and got a loaner Cheyenne to drive. They called them later that evening. They took the head off and piston walls are scored. Engine is destroyed. The warranty estimate is $35,000 for engine and labor. That’s half what they paid for it. They said they were ordering a new engine and it was supposed to be in Wednesday. Apparently, today, per my conversation with my friend, he said they have put a hold on repairing his daughter’s car from the big wigs at corporate. Apparently Porsche isn’t too keen on repairing this car. Something along the lines they may want the whole car back and just put her in a new one. Don’t know yet what that decision will be but will keep everyone posted.
2500 miles on a brand new 2023 Macan same thing happened to engine. 10 days in still awaiting to hear back from Porsche North America on what they are going to do. Meantime in a loaner



Old 08-26-2023, 10:07 PM
  #24  
chassis
Rennlist Member
 
chassis's Avatar
 
Join Date: Nov 2019
Location: linker Fahrbahn
Posts: 4,147
Received 1,429 Likes on 1,047 Posts
Default

Originally Posted by bspindler
2500 miles on a brand new 2023 Macan same thing happened to engine. 10 days in still awaiting to hear back from Porsche North America on what they are going to do. Meantime in a loaner
Sorry to hear, thank goodness for warranties. I hope the resolution is as quick as possible. Please update the thread on the diagnosis if the dealer provides one.
Old 11-13-2023, 11:42 PM
  #25  
jimgav
1st Gear
 
jimgav's Avatar
 
Join Date: Nov 2023
Posts: 1
Received 0 Likes on 0 Posts
Default

Have you heard from your dealer, what happened? Happened exact thing to me today @2600 miles, '23 Base Macan. Will contact my dealer tomorrow to check car.

Last edited by jimgav; 11-13-2023 at 11:52 PM.
Old 11-14-2023, 07:54 AM
  #26  
WillinEvergreen
Instructor
 
WillinEvergreen's Avatar
 
Join Date: Sep 2023
Posts: 178
Received 59 Likes on 46 Posts
Default

Just FYI, my 2018 Audi Q5 with the same engine went into limp mode occasionally starting at about 60K miles, but was fixed by a re-start. Eventually it would not correct after re-start. Dealership diagnosed it as bad injector on cylinder 3 and replaced all injectors at around 62K - $2,500. The day after I got the car back, same thing happened. After further diagnostics, the problem was identified as a cracked intake valve spring on cylinder 3, discovered when a tech scoped the engine. Dealership replaced the single spring and associated components and returned car; no additional charges. Car ran fine until I traded it for my 2020 Macan base a few months ago at around 75K miles.

I had lots of replies at the Audi forum when I related this problem, mainly about how it could not have been a valve spring because they don't fail that way, etc. The whole point of this reply is that it was a very quirky and isolated instance, and it apparently took some initiative on the tech's part to find the issue. I found it interesting overall and praise the dealership for eventually doing the right thing.

Cheers.
The following users liked this post:
jimgav (11-14-2023)
Old 11-14-2023, 04:48 PM
  #27  
sivikvtec
Intermediate
 
sivikvtec's Avatar
 
Join Date: Aug 2009
Posts: 44
Received 19 Likes on 12 Posts
Default

I do not understand what solenoid could possibly cause a lubrication problem.

Why would there be a solenoid that can shut off oil flow to any lubricated parts?? This doesn’t make any sense.
Old 11-14-2023, 05:38 PM
  #28  
Petza914
RL Community Team
Rennlist Member
 
Petza914's Avatar
 
Join Date: Oct 2007
Location: Clemson, SC
Posts: 25,999
Received 6,582 Likes on 4,186 Posts
Default

Originally Posted by sivikvtec
I do not understand what solenoid could possibly cause a lubrication problem.

Why would there be a solenoid that can shut off oil flow to any lubricated parts?? This doesn’t make any sense.
More modern Porsches (starting around 2009) have a variable oil pump vs a crank driven one. Must have something to do with the technology in this assembly that can allow for this type of failure. Not sure the advantage that moved to this kind of system (maybe less parasitic drag on the engine for better fuel economy) but at the expense of potential catastrophic failure seems short-sighted. There are certainly many things that have gotten worse based on manufacturer fleet efficiency standards going up and up and up - plastic coolant pipes instead of metal one that come unglued and become heat cycled and brittle vs the old metal one, etc.
Old 11-14-2023, 07:06 PM
  #29  
VAGfan
Pro
 
VAGfan's Avatar
 
Join Date: Dec 2021
Posts: 580
Received 298 Likes on 196 Posts
Default

The 2.0 also has a solenoid valve for switching ON/OFF the oil cooling jets that squirt at the bottoms of each piston.
Old 11-23-2023, 12:23 PM
  #30  
PJ Cayenne
Rennlist Member
 
PJ Cayenne's Avatar
 
Join Date: Dec 2013
Location: Connecticut
Posts: 1,668
Received 304 Likes on 183 Posts
Default

Originally Posted by VAGfan
The 2.0 also has a solenoid valve for switching ON/OFF the oil cooling jets that squirt at the bottoms of each piston.
You would figure they would set this up as a "fail open" set up. This way lubrication would be present in the event of a solenoid failure.
The following users liked this post:
boyce89976 (12-02-2023)


Quick Reply: 2023 Four Cylinder engine failure



All times are GMT -3. The time now is 09:34 AM.