Code P222B
Thread Starter
Newbie
Joined: Jun 2022
Posts: 3
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From: Lincolnshire
SLK 350
Code P222B
I have code P222B on my E350 CDI C207 Coupe 2012, it says the Barometric Pressure Sensor B Circuit Range/ Performance, I have looked on line but can find no reference to this part,
Is it possibly called something different and where is it likely to be found, I presume its something to do with the Turbo as it keeps going into limp mode .
Any info would be much appreciated
Is it possibly called something different and where is it likely to be found, I presume its something to do with the Turbo as it keeps going into limp mode .
Any info would be much appreciated
Super Member
Joined: Aug 2004
Posts: 954
Likes: 245
E550 Coupe 2wd (2016)
I've never seen mine, on any car, but it's there somewhere. My guess is it'll be the same as a MAP, boost or filter sensor, which is a small black plastic box maybe 1 x 3/4 x 1/2". I have four that are used on my gas engine and that's what they look like, and they can all read ambient just fine so I'd ***-u-me the ambient one is more or less the same? I've heard they put them up front where they aren't exposed to the eng heat or slightly different pressure seen in the eng compartment, like in the bumper etc, but just a rumor. If I made the car I would put it in the intake tube before the air filter because that's the only place it matters. Or after the air filter if you don't have a filter sensor.
Best of luck, wish I knew more.
Best of luck, wish I knew more.
