DIY: Adding Front Center Third Radiator
#16
Rennlist Member
Qty Part SKU Price Notes
1 Radiator Support Air Duct 9P1121291 $59.99
1 Radiator Support Seal 99110633701 $42.69
2 Radiator Mount 99110653701 $21.38
2 Radiator Mount 99110653802 $21.78
1 Radiator Coolant Hose 9P1121629A $46.69
1 Radiator Coolant Hose 9P1121630A $46.69
1 Radiator Support Cover 9P1121483 $18.49
1 Radiator Support Cover 9P1121484 $18.49
1 Radiator Support Panel Seal 9P1121687 $10.99 Not needed with CSF radiator
2 Radiator Support Panel Seal 9P1121687A $11.98 Not needed with CSF radiator
1 Radiator Air Seal 9P1121245 $11.79 Not needed with CSF radiator
2 Radiator Mount Nut PAF108333 $11.96 FCP Kit includes 4x, but two will not fit on bottom mount. Use two flange nuts instead.
1 Radiator Support Air Duct 982121291OK1 $153.99
1 Bumper Cover Grille 982807681AOK1 $132.99
1 Radiator CSF-7060 $449.00
#17
Rennlist Member
Thread Starter
Hey @cbracerx , can you elaborate on the specific steps that ensure no air gets into the system? Debating doing this myself or bringing it into a shop. Noob DIY'er here, OP from https://www.718forum.com/threads/718...y-driver.29389
#18
Quick related question: Do you need the 3rd radiator on a 2.0T 6MT that won't be tracked? I wanted it because it's 100F+ (heck, even 110F+) for months here in hot TX, but hope it's not needed. I'll always drive in sport mode, which significantly lowers coolant temperature, so hope that's enough on a hot day. I'd only run it a bit harder on mountain runs, but it's cooler up there. Hopefully the 2.0T has the same size radiators as the 2.5T and 4.0, meaning it should have better cooling ability than the 2.5T, since the 4.0 has the 3rd radiator. Thanks.
#19
Just driving, it should be perfectly fine as-is. My personal threshold for oil temp is 115C, so if you see your temp creep past that then I'd consider the third radiator.
Last edited by spdracerut; 07-04-2024 at 11:51 PM.
#21
As a reference, I tracked my car (2.0L) in 70F weather and the only temp only hit 224F. I personally try to keep oil lower than 240F, but that's being very conservative. 270F is a typical upper limit with 300F being a hard stop. So even stock cooling system, you could track the car in 100F temps and probably hit that 270F oil temp.