TobyW

Your car appears to be similar to mine - I've got manual sports seats, full leather, Xenon, and 19" wheels. No sunroof or PASM. You can get Bluetooth with the Mr12Volt module, but in your case it might require some coding to get the MOST loop activated.

I've got the iCarSoft CR Pro+ which I think has similar functionality to the POR version. I don't think it does coding, so if that's something that you want you should definitely go for the Durametric.

groovzilla

The only accurate way to determine IMS Bearing size is to use the engine chart:

Engine #’s For IMS Bearing Size:
The smaller IMS Bearing in the 3.8L “S” engines are in engine Serial#’s up to M97/01 68509790.
M97/01 68509791 forward have the larger more robust IMS Bearing.

For 3.6L “Base” engines, the engine serial#”s M96/05 69507476 and higher have the larger More robust IMS Bearing.

JustinCase

I'm not sure, but if you actually have an LN double row ceramic bearing system, LN might be able to confirm the status via your VIN.

demon_speeding

Pretty sure the owner/shop didn't register the bearing. I'm not particularly thrilled with that shop. They're insistant that the bearing, clutch, RMS and flywheel need to be replaced simply due to time, not miles. The parts were replaced in 2017, they are stating that they need to be replaced every 5 years, no matter the mileage. My independent, who's been a Porsche tech for well over 30 years says that's a ludicrous claim, particularly when the vehicle shows no signs of any of those items leaking or failing. The shop that did the IMS has a bit of a reputation for being extortionate and after dealing with them I'm tending to believe the rumors. I would not be surprised at all if the shop never entered the VIN info LN's system and simply told the owner to come back after 5 years and do it again.

demon_speeding

My engine serial is 69503225, so it was just before the larger bearing was put in, but my IMS was replaced in 2017, approximately 20k miles ago.

demon_speeding

Thank you! I'm leaning towards the Mr12Volt and the Durametric, that seems like the most comprehensive option for a DIY'er.

Roman ACS

Im here for you when your ready

groovzilla

No Serial#?---->Something sounds fishy and it stinks
If the IMS Bearing was replaced in the earlier engine with smaller bearing(your engine), it requires splitting the case and would be a $18,000 job.
Taking into consideration your mention of the shops extortion reputation, I am putting large quantities of money on the bet that the IMS Bearing was NEVER changed and it's all BS

TobyW

The small single-row IMS bearing does not require splitting the crankcase, only the later larger one does.

demon_speeding

Extortionate, yes, but, and it's a big but, they do good work. They have a habit of trying to convince you that you need a lot of work that you don't need, at least in my opinion. Other folks have had good luck with them, I haven't. Personally, I think they did the bearing, they may have used a Porsche part, or an LN. I'm not sure. They're not going to share it with me because I wasn't the owner at the time and "it's irrelevant, it needs to be done again anyway", their words.

groovzilla

My confusion
The New replacement IMS Bearing comes with the serial# sticker and usually stuck on inside of doorjam.
Or can be in owners manual - Have you checked everywhere for it?? It's a vital thing to have and proves the upgrade.
If you have name of previous owner who had the work done perhaps LN can research data base for info? Or name of shop

demon_speeding

I have not, but thanks to your tip, I will. I'm installing a sprint booster this evening, I'll have a look then. Good call, and thank you!

demon_speeding

@groovzilla Well, ya nailed it. The LN IMS retrofit information was in the owners manual. Thanks for the tip, I'm happy I was able to track down the details.