Engine radiator OEM Volkswagen or OEM BMW

I remember when my First Radiator blew up at 20108 miles, just out of warranty, and the Dealer ship was going to sell me another Plastic/Aluminum one for the mark down price of 120 bucks. I found a radiator shop that got me a Brass and Copper one for 108. It lasted for the next 19 years with out failure.

Ive own both Mk6 1.8T Jetta and now have a Mk5 2.5L Jetta and both have required new radiators at 150k miles. they have not been leaking coolant since.

Awesome, I'm calling the dealer today to get a radiator, heater core and thermostat.

I had a similar issue with my Mk4 VR6 Golf, coolant level would drop a tiny bit over time with no obvious sign of leakage..turned out to be a very small leak at the bottom corner seam of the radiator.

Replaced radiator. Flushed out nasty brown water from cooling lines, heater core and flushed with distilled water 3 times. Pulled vacuum on cooling System and Refilled with G13 premix.

EDIT: SOLVED - noticed no leakage around thermostat, coolant ball, all belts were dry, and upper radiator dry. In the end it was the radiator.

If your going to use a fox radiator becareful cause it will hang pretty low. I ought one and thought it will work but it sits really low if you just drive on streets it should be ok, but mine is a track car so I was worried about going off and possibly hitting it on somehting and causing some problems.

I've replaced a radiator on a BMW 2018 3 Series with as little as 22k miles. This particular vehicle was leaking from the side tank of the rad, where the plastic is crimped to the aluminum. Nothing abnormal could be seen, just the crimp failed.

BMW N51 engine, SULEV radiator, these cars came with a sensor that sticks to the side of the radiator for emissions compliance. Can't even get it aftermarket anymore (last time I checked) new radiator without the sensor is like $150, with the sensor is close to $800, and no you cannot use the old sensor, if you try sticking the old sensor to a new radiator it won't recognize it and it will trigger the check engine light.

The white tank has never been the issue for me, leaks are always in the radiator frame surrounding that tank. Somewhere at the bottom, probably where the lower hose goes. The plastic is brittle crap and it develops micro-fractures that become cracks over time.