Intake Air Temperatures (IAT) and IC pump
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2006 W220 S65 AMG
Intake Air Temperatures (IAT) and IC pump
Seems like my IC pump is kaput. While the car has decent power (it still accelerates like a raped ape on the highway), that can most likely be attributed to the fact that ambient air temperatures in my locale has been very low; 20-40F on average. I'm sure this will change once summer arrives unless I fix this issue.
To test, I took the car out for a morning drive with my OBDII computer plugged in. This morning's ambient temperature was around 25F. Cruising on the highway at 70 mph, IATs read between 89-103F. After a short burst of full pedal madness, IATs climbed to 125-135F and gradually (very slowly) came back down to the previous readings. If the IC pump was working, I'd expect the IATs to be in the neighborhood of 20-30F above ambient and return to normal much faster, which was not the case..
The IC system definitely has water/coolant in it. I don't know if it was ever serviced by the PO, so I can't rule out a massive air pocket messing with my numbers. However, the car has 55k miles on it, so I doubt anything was done. That leaves me to replacing the IC pump and attempting to bleed it myself.
Does anyone know the correct part # for the pump on my S65? Plutoe, if you're reading this, my vin is WDBNG79J56A477014.
Thanks!
To test, I took the car out for a morning drive with my OBDII computer plugged in. This morning's ambient temperature was around 25F. Cruising on the highway at 70 mph, IATs read between 89-103F. After a short burst of full pedal madness, IATs climbed to 125-135F and gradually (very slowly) came back down to the previous readings. If the IC pump was working, I'd expect the IATs to be in the neighborhood of 20-30F above ambient and return to normal much faster, which was not the case..
The IC system definitely has water/coolant in it. I don't know if it was ever serviced by the PO, so I can't rule out a massive air pocket messing with my numbers. However, the car has 55k miles on it, so I doubt anything was done. That leaves me to replacing the IC pump and attempting to bleed it myself.
Does anyone know the correct part # for the pump on my S65? Plutoe, if you're reading this, my vin is WDBNG79J56A477014.
Thanks!
