PTU failure log

As some regular FChatters will be aware, I keep a log of PTU failures and have been posting updates on the long running FF PTU Design Flaw thread. However, the stats get lost as the thread evolves and there is no single thread for logging PTU failures. For example, a couple have just popped up on the Lusso PTU thread rather than the FF PTU Design Flaw thread where others have been posted.

Paul (@Nospinzone ) suggested that I start a new thread dedicated only to logging PTU failures and keeping the database up to date. Since the FF fleet is now, on average 10 years old, it would seem like a good time to maintain a specific thread to keep track of PTU failures as the cars continue to age.

I would also like to thank @Jaguar36 who started the original database which I validated and added to.

So without further ado, here are the stats and some observations;

There are now 36 confirmed PTU failures reported on FChat. There are other anecdotal failures too - a couple with track abuse and one with front end crash damage.

Ferrari built c.2,850 FFs. According to the annual report, Europe and The Americas account for c.65% of sales so roughly 1855 FFs are registered in these countries.

I think it’s unlikely that owners outside these geographies would find their way to FChat to discuss/log a PTU failure (due to language differences) and not all owners will come here seeking information - particularly if the PTU was fixed under warranty.

The best case failure rate is if we have a record of all PTU failures (and we know for a fact that we don’t). Of the 36 reported PTU failures, 27 are for FFs. In that case, the best case failure is 1.46% over a weighted fleet age of 10.25 years. That’s a failure rate of 0.142% per annum.

If only 15% of the owners with a PTU problem reported it on here then the true failure rate would be 0.95% each year. That’s equivalent to 18 cars a year in Europe+Americas or 27 cars a year worldwide.

What is notable is that while the list of cars reported on FChat has continued to grow since I first started keeping the log a few years ago, the calculated failure rate of 27 cars a year worldwide has not varied much.

Finally, please may I ask that we keep this thread exclusively for reporting PTU failures with details of the mileage at point of failure, age at point of failure and date of first registration. Any requests for help or feedback on repairs or PTU experiences should be posted in any of the other long running Lusso or FF PTU threads.

Thank you and I hope the forum finds this resource useful.

 

This is the database as it currently stands. Please let me know of any errors or omissions and I will correct them.

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The average age at the point of failure is 5.68 years with a std. dev. of 2.57 years
The average mileage at the point of failure is 21,952 miles with a std. dev. of 12,461 miles

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Great idea. I'll give it a go to see if it can be made meaningful as it relies on owners coming on here to regularly update us!

 

Thank you. I have logged any pertinent comments regarding the repairs but I am reliant on owners like Eric ( @gilly6993 ) coming back on here to update us with their progress. Unfortunately this doesn't always happen as people move on from the car or the forum - you can see how many of the posters on the failure log have a low post count.

However, if more information is forthcoming, I will add it.

 

Could be nothing more than a tired battery. PTU failures tend to be more specific with a ‘Manettino failure’ or ‘ATF fluid low’ message rather than a ‘go to dealer’ which is a very general failure message.