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MWB 94 & 33: Temperature Readings Explained

 
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flightmaster
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Post06-02-2012, 22:17    Subject: MWB 94 & 33: Temperature Readings Explained Quote

Today, in freezing temperatures of -12°C, I checked all the temperatures, including the engine temperature (engine code BLS).

Here are the most prominent values.

Block 033.

0 RPM (revolutions per minute).
-18.0°C temperature ----> it was only -12°C.
989.4 mbar pressure.
5.69 g/s of air mass -------> Engine off, MAF sensor is brand new.

Block 094.

-12.0°C temperature.
-12.0°C temperature.
-12.0°C temperature.
294.0°C temperature -----> is completely out of range. What temperature is that?


What temperatures are displayed in the two cases?
Is it normal to see an air mass reading when the vehicle is stationary?

The values before and after the DPF were around ~0°C, even though the car had been parked for 2 days.

Thank you in advance.


Translated on 25-10-2026, 23:45.
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voodoo
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Post07-02-2012, 8:20    Subject: MWB 94 & 33: Temperature Readings Explained Quote

The pressure in block 033 is equal to the ambient pressure, so the value is perfectly normal.

Regarding the unusual value of 294°C.
I just checked the product labels from BLS, and there's no MWB094 listed.

Stop at MWB093.


Translated on 25-10-2026, 23:47.
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Post07-02-2012, 8:38    Subject: MWB 94 & 33: Temperature Readings Explained Quote

Bitte gib mir den Text, den du übersetzt haben möchtest.
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Post07-02-2012, 9:39    Subject: MWB 94 & 33: Temperature Readings Explained Quote

Hello,

Please post the Autoscan results and the values that were saved using the "Save" function.
The data you are using may be outdated or incorrect; in my measurement block, there are 33 different items.

Best regards, Rainer.


Translated on 25-10-2026, 23:48.
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