Bmw 335i N54 RADIATOR Replacement Ultimate Guide DIY E90 E92 (Includes Auto/MT Drain Bolt Info)

Skip to 18:40 to learn about the Auto vs Manual Drain Bolts!

In this video, I go step by step on how to remove and install a new radiator if yours goes bad. This is not too common, but I oftentimes have to replace a radiator at-least once on an n54 engine if I own the car for a while. Radiator usually goes bad if your expansion tank cap fails and causes over-pressure in the cooling system.

The video is kind of long because it was done in the garage, but if you have a lift it usually isn't too bad of a job. Takes me between an hour and 2 hours depending on how the car is working with me haha. Stock cars usually take longer because of all the annoying factory connections.

If there are any questions or concerns please let me know! Thanks for watching :)

Install: 20:45

Add Coolant (Proper Way): 29:58

Coolant Bleed Procedure: 31:40