Room temp [ approx 20C/68F } - 2500 ohms

Thank you for this quick reply.
Is it really for AIR temp?
because the value is very similar to the one at 20C for the coolant temperature.
Is it a PTC or a NTC?

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Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class, 220CDI, 2009, W204

Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all original).

Sold: E-class, 320CDI, W210, 2000, 225 000km

IAT

Negative coefficient

1700 ohms at 30C

G'afternoon all,

I have the sensor as well and wondering what does it affect?

Also how can we clean it ? As it seems to be black with soot...

Thanks in advance. My harness for this sensor is broken and I have proceed to use splicing tape to cover it back.

Enjoy!

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1992 200E
M102
102.963
AKA Silver Old Grumpy
Always hope I can freeze someone with the aircon- Just change the compressor again, Subseal leaked with a psssssssss sound.
Its the NON-3 Pointed star items on my car that cost more to repair.$%^&%%*^&

and if its open circuit ? i cannot measure any resistance. hm i read about IAT moding and so on,
i would like to set a resistor with some value of ohms, and leave the old sensor in the intake hole. Main question for me is what kind of resistor should i buy ? my merc is W210 E250D-turbo 1998' 110kW no MAF sensor,
feels like there is something wrong with diesel/air mixturing..