Fuel parameters

The Mercedes-Benz C-Class has 3 fuel parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Bits 0 to 7 of the reply, 8 bits.

States
Raw value	State	Meaning
`0`	`OFF`	Engine is off
`1`	`OL`	Open loop - has not yet satisfied conditions to go closed loop
`2`	`CL`	Closed loop - using oxygen sensor(s) as feedback for fuel control
`4`	`OL-Drive`	Open loop due to driving conditions (e.g. power enrichment, deceleration enleanment)
`8`	`OL-Fault`	Open loop - due to detected system fault
`16`	`CL-Fault`	Closed loop, but fault with at least one oxygen sensor - may be using single oxygen sensor for fuel control
`32`	`OL B2`	Open loop - has not yet satisfied conditions to go closed loop (Bank 2)
`64`	`OL-Drive B2`	Open loop due to driving conditions (Bank 2) (e.g. power enrichment, deceleration enleanment, cylinder deactivation)
`128`	`OL-Fault B2`	Open loop - due to detected system fault (Bank 2)

Confirmed for 2017. Supported for 2000, 2008, 2012 to 2013, 2015, 2018 to 2019, 2022, 2025.

The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
Where the parameter is in the response, and how Pelican converts the raw value into a value.
A real reply, decoded. The raw value comes first, then the reading.
Which model years have tested this parameter.

Bits 0 to 7 of the reply, 8 bits.

States
Raw value	State	Meaning
`0`	`OFF`	Engine is off
`1`	`OL`	Open loop - has not yet satisfied conditions to go closed loop
`2`	`CL`	Closed loop - using oxygen sensor(s) as feedback for fuel control
`4`	`OL-Drive`	Open loop due to driving conditions (e.g. power enrichment, deceleration enleanment)
`8`	`OL-Fault`	Open loop - due to detected system fault
`16`	`CL-Fault`	Closed loop, but fault with at least one oxygen sensor - may be using single oxygen sensor for fuel control
`32`	`OL B2`	Open loop - has not yet satisfied conditions to go closed loop (Bank 2)
`64`	`OL-Drive B2`	Open loop due to driving conditions (Bank 2) (e.g. power enrichment, deceleration enleanment, cylinder deactivation)
`128`	`OL-Fault B2`	Open loop - due to detected system fault (Bank 2)

Confirmed for 2017. Supported for 2000, 2008, 2012 to 2013, 2015, 2018 to 2019, 2022, 2025.

Bits 8 to 15 of the reply, 8 bits.

States
Raw value	State	Meaning
`0`	`OFF`	Engine is off
`1`	`OL`	Open loop - has not yet satisfied conditions to go closed loop
`2`	`CL`	Closed loop - using oxygen sensor(s) as feedback for fuel control
`4`	`OL-Drive`	Open loop due to driving conditions (e.g. power enrichment, deceleration enleanment)
`8`	`OL-Fault`	Open loop - due to detected system fault
`16`	`CL-Fault`	Closed loop, but fault with at least one oxygen sensor - may be using single oxygen sensor for fuel control
`32`	`OL B2`	Open loop - has not yet satisfied conditions to go closed loop (Bank 2)
`64`	`OL-Drive B2`	Open loop due to driving conditions (Bank 2) (e.g. power enrichment, deceleration enleanment, cylinder deactivation)
`128`	`OL-Fault B2`	Open loop - due to detected system fault (Bank 2)

Confirmed for 2017. Supported for 2000, 2008, 2012 to 2013, 2015, 2018 to 2019, 2022, 2025.

Pelican can show this parameter as the fuel tank level.

Bits 0 to 7 of the reply, 8 bits.

Confirmed for 2009, 2015, 2017 to 2019, 2022, 2025. Supported for 2000, 2008, 2012 to 2013.