E-Class (W211) 2003-2009

Code P20b7

Old Dec 29, 2021 | 12:04 PM
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Mercedes Benz E320
Code P20b7

Hello can somebody help with that ? Trying to find some information about this code.
Google says :The P20B7 error refers to the issue with the wires and is known as reductant metering unit heater control circuit performance low. The reductant diesel exhaust fluid which is the heating unit is responsible to make sure that the DEF does not stop or form as crystals between the tank and injector.

The thing is my car runs on gas not diesel !!!

thanks in advance!

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Old Dec 30, 2021 | 04:02 AM
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2006 E280
Some specs of your would help a lot.
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