Datura

2006 997 Carrera S
Hatched 09/05
M97/0168604868

Riccardog

Not my car as such (looking to buy) but the car I am looking at is registered in August 2006 and the engine code is: M9701-687.

mgordon18

Riccardo - the car you're looking at is an 07. It'll have the new IMS.

Riccardog

I see, apologies for that then, here in the UK its still marketed as an 06 model.

I had considered that, as it was registered at the start of August it was probably been built in June or July and therefore would have been one of the very last 06 cars. As I recall the new Porsche model starts after August?

Mspeedster

What this thread has shown is that all MY06-08 models have the newer IMS bearing. Some late model MY05 cars have it too.

If the car was built in 2005, we estimate the change to be around late Feb. or March '05. But to be sure you need to check the engine number.

The Porsche shop manual for the 997 shows the larger IMS bearing cover and nut were installed at engine number:
- 69507475 : 3.6L Carrera
- 68509791 : 3.8L Carrera S

However, I'm not sure if these engine numbers are just for the US market or worldwide.

mgordon18

You can tell directly from the engine number (or at least the fragment you gave) that it's an 07 by Porsche standards.

From earlier in this thread:
685XXXXX = M97 for MY05
686XXXXX = M97 for MY06
687XXXXX = M97 for MY07

Riccardog

Thanks for the info, good to know!

jimmyjjames

I know this is an older thread, I was just curious about my engine after seeing some other post regarding the IMS. I have only had my car for 8 months. Love it!

Anyways I have a 2005 C2S with a manufacture date of 05/05

M97/68511737

Deesta

OK I am a new member looking to buy 2006 complied (manufacture July 2005) C4. I have searched every where to see if was built with the upgraded IMS however the numbers I have don't seem to line up with anything I can find. Apologies in advance for my ignorace but can anyone decipher the following:

M96/70509600871 (not sure if the 7 should be in there, seems like an extra digit to me) so maybe it's

M96/0509600871

mgordon18

Deesta - looks like this engine is for the 2006 model year, so it should have the upgraded IMS bearings. But I offer no guarantees. My faux-expertise is with the M97 engines (for Carreras S). If the switchover for the base cars was also in early 2005, then all '06 cars should have the upgraded bearings.

I repeat: this entire thread is conjecture, so don't pin me to this engine's IMS spec. You never really know unless you drop the engine, pull off the transmission and look for yourself.

Deesta

Mike, Thanks for your insight. Don't worry I won't hold you too it! I have not heard of any engine failures over here in Australia and the car is for sale via a dealer so I will go for the extended warranty just to be sure.

vladeden

My 06 has a production date of
10/05
and engine # M96/0569604269

Aug of 06 and still M96? Isn't that strange?

Well, it must be because I have a NON S model...

mgordon18

Depending on which thread you read, you'll see:

1) That the M97 is the next version of engine after the M96 and that all cars (S and base) switch over to M97 after some specific date.

OR

2) That the M96 engine is the 325hp model in the base cars and the M97 is the 355hp model in the S cars.

I believe it's #2.

So yes. Your car is M96 because it's a base model.

Can someone on this board show me a base car with an M97 engine? That will prove my opinion wrong.

Thanks!

BED997

I'm pretty sure it is No 1 after talking to flat 6 and LN engineering. One of them may be able to help you out. A very early build 2005 S, to my understanding, can have a M96 that will take the replaceable bearing without an engine teardown.

Datura

Deesta, are you guys still getting hammered by the "Luxury Car Tax"? I was looking at a Carrera S in Fremantle or Perth a few years back and they informed me that there was a 33% luxury tax on anything over I think $58,000.

I had to chuck a uey and run down to Little Creatures in Freo for a few pale ale's to help digest that bit of info!