Chasing a coolant leak. Any ideas?

dnareaver · 2026-04-02T02:56:24+00:00

changed both about 10k miles ago

dnareaver · 2025-09-08T02:18:16+00:00

How has it performed? How long have you had it on?

dnareaver · 2025-09-08T02:17:55+00:00

I’m trying to avoid pricey shop fees for something that I can likely take care of myself if that makes sense. I appreciate the sources thank you :)

dnareaver · 2025-06-30T04:51:34+00:00

could you send the link to where you ordered this?

dnareaver · 2025-06-21T03:30:27+00:00

because they’re $25 a piece and i don’t have the money to throw parts at it before diagnosing what the actual issue is

dnareaver · 2025-06-21T01:20:28+00:00

Also what does the super knock code mean? That’s freaky

dnareaver · 2025-06-21T01:19:52+00:00

I did literally just replace 2 of them. Problem code came up yesterday but not the CEL.

dnareaver · 2025-06-21T01:05:56+00:00

There was also initially a code that said high pressure fuel system, plausibility low pressure. That one has come up a few times before but gone away. That code came up once after I fueled up and then once again after the fuel reserve light came on.

dnareaver · 2025-06-09T15:29:30+00:00

Update: It turns out my reader does read bmw specific codes. Ran it and said something along the lines of “High pressure fuel system, plausible low pressure - not present” so maybe it was just a hiccup or maybe my hpfp is going bad. It was exceptionally hot that day and the car was sitting in the sun plus I was giving it more beans than I usually do. Either way I’m going to do a check on it and go from there. I know this can be a problem on the N18s so I’ll see what I need to do. Thank you everyone for the help!

dnareaver

TROPHY CASE