[wenchard18]

so I have a bmw 335i I have changed alot on the car and it was running perfectly by alot i mean i did all the maintnance waterpump thermostat,coolant hose turbos and seals gaskets oil filter gaskets and the car was running like a champ then i seen a small leak out of the radiator and it bothered me so i changed the radiator and bled the system. after changing the radiator car drove nice starts perfectly fine but when i go under boost doing like 100 120 and the car is hot it shoots coolant. car does not bubble at idle, car doesn't smoke no milky oil or anything..I have thought of head gasket but really the engine sounds perfect still drives fine and it doesn't overheat so where could I look or start or has anyone has the same problem.

[Sgop335]

means too much pressure / exceeding 140kPa.

a guess could be oil pressure thru ofhg gasket, or could be other reason(s)

[autoart]

Is it a auto or stick? Did you change the the I think it’s green or blue bleed screw on the radiator?

[ChuckW]

Have you tried replacing the cap?

Also, do not overfill the reservoir. In fact, it is recommended to leave it toward to low end to allow the excess pressure to be compensated with the extra headspace (air) inside the reservoir.

[wenchard18]

I have replaced the cap

[wenchard18]

Originally Posted by Sgop335

means too much pressure / exceeding 140kPa.

a guess could be oil pressure thru ofhg gasket, or could be other reason(s)

I changed the ofhg and car ran for like 5months the before I touched radiator and everything went to shiiii

[wenchard18]

Originally Posted by Sgop335

means too much pressure / exceeding 140kPa.

a guess could be oil pressure thru ofhg gasket, or could be other reason(s)

Even though I changed it already