E46 Fanatics Forum banner
1 - 1 of 6 Posts

· Registered
2018 M240i
12,667 Posts
The engine coolant drain plug is located between cylinders 1 & 2 under the exhaust manifold. If you remove it you MUST replace the crush washer. Failure to use a new crush washer will result in a coolant leak. Ask me how I know!
1 - 1 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.