Spark Radiator Oil Pressure Error

Whoa, that sounds rough! A 'radiator oil pressure' error is pretty unusual – Sparks don't usually have oil coolers integrated into the radiator like some bigger cars. Are you sure it's not a transmission oil cooler issue? Because all of those symptoms – lights, emergency mode, rough shifting – scream transmission problems to me. Is the radiator coolant level okay? Any signs of coolant leaking into the transmission fluid (milky pink color)? Definitely check the basics first!

Thanks for the quick response. My knowledge isn't extensive. Is it possible the 'radiator oil pressure' error is a misinterpretation, and the issue is actually with the transmission oil cooler? Where would I find the transmission oil cooler, and how would I inspect it for leaks or contamination?

Okay, so the diagnostic codes can sometimes be misleading! Yes, it's very possible the error is pointing you to the wrong place. Now, your Spark might have a separate transmission oil cooler, or it might be integrated into the radiator. Look closely at the radiator – are there two small hoses running to it, besides the big radiator hoses? If so, those are likely transmission cooler lines. Check those hoses and the connections to the radiator for any leaks or oily residue. Honestly, with all those symptoms, and without specific diagnostic tools, you're probably best off taking it to a workshop. They can properly diagnose the issue and prevent further damage. But at least you have a better idea of what to discuss with them!

I appreciate your assistance. Based on your recommendations, I took the vehicle to a local workshop for diagnosis. It turned out to be a defective cable connection as suspected, and the repair cost was 95€ Thank you for pointing me in the right direction.