COBB MQB MK7/7.5 Flex Fuel DTC List

C0BB1

Sensor is short circuited to ground. Check wiring.

C0BB2

Sensor is short circuited to positive voltage. Check wiring. May be unplugged

C0B10

Fuel content error. Caused by water/debris in the fuel or an ethanol content sensor failure. If known good fuel does not resolve the issue, sensor replacement might be necessary.

C0B11

Fuel Sensor conductivity or permittivity error. Can be caused by fuel contamination or incorrect fuel type. (high content of additives, or particulate in system)

C0B12

Flex fuel sensor non plausible frequency. May be caused by incorrect ethanol content sensor.

C0B13

Ethanol content limit reached or exceeded. Lets you know when you’ve added ethanol beyond the optimal point. Power may be lowered due to fuel system limitations.

C0B14

Lambda controller deviation based Ethanol sensor plausibility diagnosis. System is referencing oxygen sensor output to double check if the ethanol sensor is giving a correct output. May be caused by faulty ethanol content or oxygen sensor.

C0B15

Flex Fuel Sensor non plausible temperature. May be caused by incorrect sensor, or the wild weather you get where you live going realllllllllllllllly hot or cold. Global warming am I right?

C0B16

Fuel temperature out of range. Common fuel temperature is necessary to avoid this error. Ethanol content sensor may be unplugged.