P2060 - Error Code
03-05-2024, 01:39 PM
#1
P2060 - Error Code
2011 C300 ~50 K miles. The thermostat was replaced in December. Past week engine light comes on. Generic Scan tool reports P2020 - Powertrain. Reductant Injection Air Pump Control Circuit Low. I haven't noticed any performance issues. At least one of the generic advice is that it could affect the catalytic convertor, if unchecked. Seems that this air pump is in the same vicinity as the thermostat. Wondering if the mechanic missed a connection or one got loose after the thermostat replacement.
03-05-2024, 03:05 PM
#2
MBWorld Fanatic!
P2060 or P2020? Either way its hard to tell with a basic OBD scanner, a Mercedes specific scanner is the way to go.
I know that on the M272 engine the secondary air pump may need to be moved out of the way when replacing the thermostat, the top bolt of the thermostat is hard to reach with the secondary air pump in the way. I was able to not move the air pump by using a 1/4 drive socket and 1/4 extension, it just barely fits. A 3/8 socket is too large.
To check the secondary air pump operation stand over the air pump while the car is started from a cold start, see if it functions.
I know that on the M272 engine the secondary air pump may need to be moved out of the way when replacing the thermostat, the top bolt of the thermostat is hard to reach with the secondary air pump in the way. I was able to not move the air pump by using a 1/4 drive socket and 1/4 extension, it just barely fits. A 3/8 socket is too large.
To check the secondary air pump operation stand over the air pump while the car is started from a cold start, see if it functions.
