Maybe this will help anyone who's not realizing power:

For most of the 2.5 years of owning my 2006 CL55 AMG, I never quite understood why with a 600 bhp 700 lb/ft trq. Eurocharged Stage II tune, from a dig; the car never really impressed me. From a dig it had grunt, but not the celebrated hard launching tire shredding grunt then hard charging monster claimed by CL55 and E55 AMG owners. Well, this all changed the other day. For the past few weeks, from dead cold, the starting of the engine was greeted with stumbling and an almost a stall. Initial thoughts were; did the 1.5 year old fuel filter clog or is the fuel pump going? Then two days ago there was very little power; the engine started, warmed, then placed in drive. From a start, though the gas pedal was moderately depressed, instead of the usual modest response of power, there was just a weak silky smooth forward movement, very little power. Now I'm thinking; low fuel pressure or whatever. Brought it to mechanic with suggestion to replace the fuel filter. He calls me back; "Do you want to know what the "real problem" is? I pulled a code; Air intake temperature sensor short". Off I went to the local MB dealer. Gave them $30 for an AIT sensor. It took mechanic less than 10 minutes to install. He cleared the code and hard re-set the ECU...It's a monster! The monstrous torque of this engine has finally been realized. The motor revved differently. It had a whole different response from a dig and through the gears. Wow! With this new, what feels like an additional 150 bhp and trq., evil thoughts entered my head; "I'm hungry. I want prey!". Though none was found, the 19 year old imprisoned in my head marked a few roads with 200-300 foot long black streaks. Suggestion: replace AIT sensor every 2 years. Mods: DTK 77mm clutched pulley w/belt wrap kit, Bosche10 pump and tandem heat exchanger, K&N panel filters in stock intake, EC tune, DTK TCU, Kleeman mid-length headers, 200 cell primary cats, deleted secondary cats, stock resonators and mufflers, Yellow Speed Sport coil-over suspension. Up next: Quaife LSD, 82mm TB, 550 injectors, 3.5" intake mod. This coming winter heads go to Head Games (NJ) for freshening and porting, fresh cams, timing chains, etc.

Hmmm maybe I should change mine...

ordered one from pelican parts lets see if it makes a difference in my car it's never been changed anyway.

The AIS is a thermistor that degrades over time but the ECU doesn't code it until it completely shorts; as in my case. Suspect that the other functions that depend on it are changed (decreased) as it decreases in sensitivity.

Any other sensors that need periodic maintenance like this?

None that I know.

Do older m113s have this?

I thought this was integrated into a MAF sensor? At least on my car(w202 c43)

Do you have a part number?

EDIT - Found it - 0075421318

I replaced my CPS ahead of time to avoid that roadside failure.

I gotta do that one I'm just not ready for how annoying they are to do.. I did it once to my w208

Is this the part that you replaced?

http://www.autohausaz.com/search/pro...ature%20Sensor

Were you logging IATs prior to replacement?

I watch mine like a hawk and nothing stands out of spec... I am just wondering if this is something you saw normal IATs replaced it upon its showing faulty and then was amazed at the result.

What gives hombre?

Looks identical to the one I ordered but I got it from pelican parts, it was $36 with shipping, I can get you the part # if you'd like to confirm but it looks like that

What data logger are you using? I'm looking to purchase one but there are many different options, I want to get the best one

Check here mister!

https://mbworld.org/forums/w211-amg/...onics-car.html

You got it!

Never checked data logging. Put it this way; our cars are now considered old. they're restoration projects, so almost all components are swapped in regardless if failed or not. If someone posts; "I needed to put a new one these in" I'll do the same because it'll happen! LOL!

Yup, CPS went last year. Easy swap, like the AITS.

Best option would be Zeitronix Zt2 combined with a ZT3 to capture both banks AFR combined with a nDASH to capture all OBDii variables needed (Timing/IAT are the most desired) You can log on the fly as well

There are other routes to take such as the Innovate LM-2 a few members use that with success

I personally run ZT2 capturing AFR off the drivers side bank IATs, MAP RPMs

I use a android w211 head unit running torque pro to monitor IATs /Boost / RPMs as well while just cruising around.

I run my logging equipment when ever I beat on my car... Fixing these cars can be rather expensive in my experience

Alright mine came in, I'm gonna try to shove it in there if it doesn't rain this afternoon.

I'm expecting a 20hp gain

Keep us posted! Going to order one too

Just ordered mine will be here tomorrow. Where exactly are they located? On an air tube? Can't wait to hear your results macedon!

I was kidding about the HP gain i am honestly expecting no change. Apparently you have to remove that Y tube I think to get to it. I'm gonna search around for instructions and take pics as I do it

It looks like **** outside so won't be doing it today

Super easy to swap in: remove the TB air intake elbow. Under it is a steel elbow with the AIT sensor smack in the middle. Press in its plastic clips to pull/lift disconnect the AIT sensor harness from the AIT sensor. Pull up on/out the sensor. Press in the new sensor. Press harness back on sensor, etc. Disconnect the battery to perform a hard re-set of the ECU.