Krone2000

Hello everyone, I just bought a F10 525d from 08/2011 with the n57 engine.
a week ago I had my universal tester on, and discovered that the temperature was 96/97 degree Celsius at 90 km/h and 100/101 Celsius at 130 km/h.
Is this normal and is it okay?

Regards Ivan

Eddie P

https://5series.net/forums/e60-discu...erature-70669/ is worth a read.
Important they're not too low otherwise the DPF won't work. Yours are certainly not too low, so that's good. Don't know what too high looks like though.

Krone2000

This week I removed the termostat and did the boiling test in a pot, but the termostat opend at 88 degres celsius and looked fine.
I put a new gasket in and put it all together again, new coolant and went for a test drive.
Now it was okay, constant tempreture around 93-94 degres celsius
I realy dont understand this, but anyway the problem is solved and I am happy
I will keep an eye on the tempretur for the next couple of weeks.

FYI. the working tempretur of the oil is 102 degres celsius on this car, I was informd by a BMW mekanik.

Anton Japoncik Gi Sk

yes its normal