2014 mercedes benz sprinter 2500 21 l 2143 cc l4 diesel 85000 miles vin wd3pe8de7e5823307 check engine light is on scan for codes came back with a p261f what is it and what will it take to fix i read more. Trouble codes p20fa p208a p203a p0299 p261f fix find an easy way to fix these codes checking the vacuum system i do this on a sprinter van. 2014 mercedes benz sprinter 2500 21 l 2143 cc l4 diesel 85000 miles vin wd3pe8de7e5823307 check engine light is on scan for codes came back with a p261f what is it and what will it take to fix i read more. Mercedes benz sprinter 2500 error code p261f media publishing ebook epub kindle pdf view id b44fcfaa4 jul 12 2020 by roald dahl does anyone know hot fix it 0 reply . P261f is a kind of obd ii diagnostic p powertrain diagnostic trouble code for mercedes benz 400 p261f mercedes benz 400 is described as oxygen sensor circuit no activity detected bank 1 sensor 1 this means theres a problem in the front oxygen sensor on bank 1 as the o2 sensor is inactive