CChung

I'm looking at getting a base CPO 2014 991 and I requested the dealer to provide me with a DME report but they said it is not necessary because PDK cars can't be over revved. Is this true and, if so, should I insist on getting a report anyway?

BlackBeauty

If you do a search there are a few threads in this, but to answer your question, it is possible, but less likely to happen than on a manual.

cajerseyboy

I have approached over rev in my PDK and it auto engages the clutch putting you in neutral.....just as its getting fun

John 996 TT Cab

One of the worries about over revs is on deceleration but you can't shift down with a PDK car if that downshift has a chance of causing over revs. Found this out a few times when driving rental 991S with PDK and chose the wrong "button" for shifting. I'm used to paddles and have them on my 996 TT Cab, My 991S Cab and my Macan Turbo.

LexVan

Are you sure? Rev limiter on PDK car puts the transmission in neutral? My understanding is the rev limiter cuts timing and fuel. Baby PDK cars are different.

fast1

Never had a PDK car but I would expect that it would be possible to get some ignitions in range 1 which are harmless. I would expect that over rev protection is the same for a MT and PDK: when the redline threshold is reached, the computer shuts off fuel to the engine. Since it may take .01 sec before the fuel cut off is executed, range 1 ignitions are possible.

997s07

The car in question is CPOed. That means Porsche thinks the DME over rev report is satisfactory. The base engine is very robust with many over engineered parts. No worries.

Tcc1999

This question has been the subject of a fair amount of debate in the 997 neighborhood. Lots of opinions and info. That aside, to the OP, if you are looking to buy, it isn't really a question of whether or not you can over-rev a PDK. The real question is why won't the dealer/seller take 45 seconds and show you the report? It is not proprietary info and you are the one about to plunk down lots of $$$. Maybe it has some range 1 or 2's, maybe it has a lot of range 1 or 2s that they think might make you walk. In either case, if the dealer won't show you the DME report, then that is cause to re-think things and ponder whether or not the dealer is hiding something. There are examples here by posters that suggest a CPO is not a substitute for reasonable diligence.

Once you get the read out then pose a question on what the numbers mean.

991carreradriver

How do you know this? I over rev'd my 2014 on an inadvertent downshift. I shifted from 2nd to 1st in a X/C turn. No damage to the engine, but I was not locked out of making the mistake.

CChung

Thanks for everyone's replies. I requested the dealer to send me the DME report for the 991 I'm interested in since it's part of the CPO inspection. I'll post the results if they send it to me. Incidentally who approves a vehicle for CPO status, the dealer or Porsche themselves?

997s07

Porsche has it's own protocols.

Also, Tcc1999 is correct - if a dealer refuses to provide a DME report walk away. There is more than one thing they will be hiding.

991carreradriver

I have read on another forum that the previous owner/lessee must give permission in writing to access the DME via the dealer. Can anyone verify if this is true?

LexVan

This just sounds like a stall tactic. It's not like there is any personal identity information on the DME for the prior owner. Service records (name, address, cc #) sure, a DME printout, not so much.