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Inside M275 Engine (V12TT) and everything else...

So far I've learned that the turbos are actually liquid cooled... I had no idea. :slap:

Good ****, thanks for posting

Those turbo units are shockingly expensive for what they are.

good post, thanks.

Good post, good pictures.

Thanks for the post OYGEN lots of great info!!!!

Awesome... if figured if lots of people see the internals maybe we can all come up with ideas. :y

Quote:

Originally Posted by Oxygen (Post 3427955)

Awesome... if figured if lots of people see the internals maybe we can all come up with ideas. :y

Chris:

Once again...great information! :y

Tom

Excellent post! :y

Should be a sticky!

Wow! That's very cool and informative info on the V12 nice post!

Hi Thanks for this lesson , almost gives me a headache trying to figure out
don't you anyone come and say it's only got 3 valves and 1 cam / head!!!!
$$$$OOOO nice and complicated.. Roger

Very cool post. Thanks!!:y:y:y

Very nice post chris. Very informative. :y

Wow where did you get this stuff?

Quote:

Originally Posted by Oxygen (Post 3426091)

http://www.thegetlucky.com/_upload/i...275cmp/021.jpg

These red 'plugs' look like knock sensors - do you have any information confirming this? I read somewhere that combustion ionization is used to optimize timing - I wonder whether the knock sensors are in fact still on our engines?

BTW - many thanks for these pics! awesome eyecandy!!

Excellent post Oxygen!! thank you for sharing....

Quote:

Originally Posted by Thericker (Post 3459737)

Excellent post Oxygen!! thank you for sharing....

+1 :y

Quote:

Originally Posted by CA_E55 (Post 3459512)

Those are in fact knock sensors, and they are used to help determine ignition timing to prevent preignition. The computer does use Ionic Current Detection for misfire diagnosis, but at full load at high rpms, the computer reverts back to the good old crank sensor for misfire diagnosis. If the crank slows down ever so slightly, it is determined to be a misfire. Also, the OP was slightly misinformed, as the alternator is liquid cooled on all biturbo cars, not just the Maybach. The turbos are liquid cooled, in addition to the oil feeds and returns also, making for some interesting plumbing on the engine. Also, the black plastic piece between the cylinder valley is a vacuum reservoir for the divertor valves and the wastegates, which are all computer controlled by solenoid valves directing the engine vacuum and boost from the manifold.

Nick

^ Awesome... thanks for the expert input!

Wow ... awesome pics. Thanks!!

Hello! Nice pics....I just posted some pics of the Internals of a current CL at the shop:https://mbworld.org/forums/cl-class-...gine-pics.html

NOT a TT though..

Quote:

Originally Posted by nick 55 (Post 3472609)

Thanks for your explanation, very interesting! (for some reason I only saw your reply today..:confused:)
BTW, do yo have any explanation why AMG went to a rear oil sump vs. the MB V12TT front sump? Cant be the chassis because they put the these engines in the same models.

Oil sumps are determined by the vehicle chassis the engine is installed in. The 220 and 215 are front sump, 230s are rear sump. Same with the 55kompressors, the 211 and 219 are rear sump, and the 220 and 215 are still front sump.

Nick