2001 e46 318i SE Help needed to replace leaking radiator

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  1. 2001 e46 318i SE Help needed to replace leaking radiator 
    #1
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    I have just bought a new radiator. But could someone please tell me the correct procedure to remove the existing leaking radiator. What do I have to remove first? And then what... Do I have to be aware of anything because the car has aircon?

    For example, do I have to remove the radiator fan and then the water bottle? Or is it the other way round.

    I am also going to replace the expansion bottle, regardless. The car has done 78,000 miles.

    Regards to all.
    18" M6 Alloys, Leather interior and tinted glasses...
     
     

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    M54 engine (my engine) but near enough exactly the same set up radiator and expansion bottle wise..

    http://www.bimmerforums.co.uk/forum/...-heavy-t58409/
    330i sport a big chunk of berlin...

     
     

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    Quote Originally Posted by dailydoggy View Post
    M54 engine (my engine) but near enough exactly the same set up radiator and expansion bottle wise..

    http://www.bimmerforums.co.uk/forum/...-heavy-t58409/
    you said you had a 3 litre sludger last week!
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    Quote Originally Posted by 530kam View Post
    you said you had a 3 litre sludger last week!
    only in a pink fit!!!
    330i sport a big chunk of berlin...

     
     

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    What exactly do you (dailydoggy) do to remove the hose from the bottom hose connector of the exp bottle? I do not see any clip and I do not want to break it. Thanks.
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    The hose has a clip on, same as all the other hoses, that just pulls up a little to release it (no needto take off fully). If it didn't have noe, the hose would have just shot off there every time the car got hot.

    Bottom hose is part 5 on this diagram:
    E46 330i Touring (Sold)
     
     

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    Found the clip and managed to remove the bottom hose. Thanks.

    Next questions:

    1. The bottle is now very loose. Already remove the bottle low level sensor and pull the clip away from the bottle. Trying to pull from the bottom up. No luck! I feel I am going to break something.

    2. Also find it difficult to remove the radiator, not knowing where to undo the screws of the rad. Any advice please.

    Thanks.
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    Hi all!

    It has gone a bit crazy I believe. I have removed the old radiator with the Exp Bottle still attached to it. How do I remove the bottle now?

    The bottle has only got one outlet, I think. The old part number is 7798040.

    Any help is greatly appreciated.
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    if you have removed it complete you will have a hard time pulling the bottle off its platform now they are very tough to pull off, if your not changing the bottle leave it and just remove the bottle and platform complete off the old rad by removing the 2x T25 torx screws securing it to the rad and refit it it the new rad...

    it is explained in my how to you need to read it properly...
    330i sport a big chunk of berlin...

     
     

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    Perhaps I might not have read your 'how to instruction' properly, but honestly, I did try to pull the rad out from the bottom. I did not use all my strength because I am afraid I might break something. This is the hardest bit during the whole operation! I'll re-read again to find out how to remove the bottle for future reference.

    The current situation with my car is this: The old rad is bowed. The exp bottle is OK, not leaking. Since the only option is to reuse the old bottle, I'll just do that. If there is still a leak, I'll check the bottle and replace it if necessary. (I still need the skill to remove the bottle).

    Thanks to all.
    18" M6 Alloys, Leather interior and tinted glasses...
     
     

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