LFA Radiator Oil Pressure Defect

Wow, that sounds familiar. I had almost the same symptoms in my LFA. The grinding was the worst. Have you checked the coolant level lately? Low coolant could mean a leak affecting the radiator pressure. Also, check the oil cooler lines. Sometimes they develop small leaks that are hard to spot but cause pressure drops.

Thanks for the quick reply. I appreciate the coolant level and oil cooler line insights. I haven't checked the oil cooler lines for minor leaks, focusing on the radiator connections. Could you tell me where the oil cooler lines are and how you found those subtle leaks?

The oil cooler lines run along the bottom of the radiator – you'll need to get under the car to see them. I missed the leak at first because it was so slow, the coolant evaporated before it dripped. I'd suggest a workshop; a pressure test will pinpoint it quickly. Better safe than sorry with these transmissions!

I appreciate the advice. A pressure test at a workshop seems best. Turns out, it was a defective cable connection, causing a faulty pressure reading. The repair was 95€.