Repeat steps 10 through 12.
Bmw e46 engine block coolant drain plug washer.
Draining and filling your cooling system is not only a maintenance requirement but also a prerequisite of many repairs.
Add 3 quarts of distilled water.
Use a large funnel.
Remove the drain plug on the passenger side of the engine block and drain the coolant out of the block.
Working at the right side of the engine block near the engine mount bracket remove the engine block drain green arrows.
7 3 with the engine block coolant plug open you can flush out your coolant using a hose.
Find the engine block drain plug.
Look on the exhaust side of the engine block before the front axle.
Disconnect the temp sensor in the lower radiator hose.
Get a catch bucket ready.
Remove the radiator drain plug and drain the coolant.
Start the engine and turn the heater switch on to full hot when you are about beginning to add the 2nd quart of water.
Engines used in the bmw e46 models hold about 8 5 liters of ethylene glycol water mix while m3 e46 models hold 10 liters.
Coolant will drain out a lot.
Add 3 quarts of bmw antifreeze.
The block drain is a 13mm plug located just below the cylinder two exhaust header.
Once the coolant has stopped dripping reinstall the block drain plug.
After the system is flushed plug the engine block coolant plug back in using a new engine block coolant crush washer.
Just some advice and observations from my coolant flushing experience this weekend.
Look at the pictures to find out if you re looking at the right bolt.
Pull out the clip that holds the expansion tank to the mounting plate.
The engine coolant drain plug is located on the passenger side of the engine block just in front of the exhaust manifold.
You can feed the lower and upper radiator to flush those areas as well.
14 let engine cool off and drain all of the coolant this time from the radiator and the expansion tank.
Place the bucket beneath the drain bolt.
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Using either a 1 4 ratchet or a larger pivoting head ratchet slightly loosn the 13mm bolt until you can loosen the rest of it by.
Allow the coolant to drain into the bucket.
Genuine bmw coolant drain plug sealing washer for engine block instock ships today.
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