C63 AMG Oil Cooler solution! Reasonable 44O option!




Easy to fit, longest part was removing bumper cover and removing my auxilliary oil cooler fan.
I too had to elongate the mounting holes in the cars brackets but no big deal.
Once that was done, fitted new O rings bolted her up and filled up new Liqui Moly 5w40 with MOS2 and that was that.
My only change was that I had already fitted a rubber flap to my under body plate similar to the 440 option, (Thanks BLKROKT for the pics)




Easy to fit, longest part was removing bumper cover and removing my auxilliary oil cooler fan.
I too had to elongate the mounting holes in the cars brackets but no big deal.
Once that was done, fitted new O rings bolted her up and filled up new Liqui Moly 5w40 with MOS2 and that was that.
My only change was that I had already fitted a rubber flap to my under body plate similar to the 440 option, (Thanks BLKROKT for the pics)
That “flap” that sits right at the leading edge of the cooler and extends about 3/4” under the car is important. It creates a relative low-pressure area directly under the cooler and helps to optimize airflow through it. Without it, you’re just more-or-less lucky to get air flowing through it when mounted flat.




As SRG_63 stated earlier that on the Nurburgring his PFL car ran a few degrees cooler than his mates FL car.








The Best of Mercedes & AMG




Cant speak for 440 option which is no longer available.
Disconnect and Remove its associated Fan, as it impedes air flow to this cooler at higher speeds.




Not having the Aux fan doesn't seemed to have affected the cooling even when sitting in traffic.
So far driving around on 25C days the temp has not gone above 105C even when in S and locking in first 3 gears around town.
Used to regularly see 112C when pushing although that may have been during summer.
May go higher in mid summer 25-34C in Sydney Australia.
For the flap I used garage door weather strip which came with a aluminum base and 40mm rubber insert (see pic above).
The base is screwed onto the bottom tray after removing the ribbing to allow a flat surface to attach to.
Not having the Aux fan doesn't seemed to have affected the cooling even when sitting in traffic.
So far driving around on 25C days the temp has not gone above 105C even when in S and locking in first 3 gears around town.
Used to regularly see 112C when pushing although that may have been during summer.
May go higher in mid summer 25-34C in Sydney Australia.
For the flap I used garage door weather strip which came with a aluminum base and 40mm rubber insert (see pic above).
The base is screwed onto the bottom tray after removing the ribbing to allow a flat surface to attach to.








That “flap” that sits right at the leading edge of the cooler and extends about 3/4” under the car is important. It creates a relative low-pressure area directly under the cooler and helps to optimize airflow through it. Without it, you’re just more-or-less lucky to get air flowing through it when mounted flat.




The kit comes with 2 small ducts that you attach to the bottom tray as shown in (post #123)
Last edited by Cwagon; Sep 28, 2020 at 07:05 AM.
Went for the install today. Fan was removed, underpannel was modified with the flaps, and cooler is in! Just been driving around town but it seems to be running about 10 degrees fahrenheit cooler. I'll hit some canyons this weekend for the real review









Now just need to get my workshop equipment moved over to my new place so that I can proceed with the install.





