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E46 2000 1.8 Expansion Tank Kaput

1708

By 1708,
in BMW 3 Series Forum

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1708 Contributor

1708

Posted
Posted

Expansion tank has split.

Questions: Can I just replace the tank without taking the rad out.While its out of the car is it worth changing anything else?

Is it easy to replace?

Any advice?

Cheers Fellas

E46King Collaborator

E46King

Posted
Posted

Hi Steve, I don't think it's a 5 min job but doesn't look too bad. I found this video whilst sniffing around youtube so it may be of some help to you:

  • Like 2
Superman001 Collaborator

Superman001

Posted
Posted

Im not that familiar with your engine but I know the M54 engines sometimes have cooling system issues.

Probably a good idea to replace the radiator hoses at the same time as a preventative measure as these can split after a few years.

1708 Contributor

1708

Posted
  • Author
Posted

Hi Steve, I don't think it's a 5 min job but doesn't look too bad. I found this video whilst sniffing around youtube so it may be of some help to you:

Thanks Paul,

That was really helpful, its given me a few tips. Thanks for taking the trouble to find that clip.

Cheers. Merry Christmas!

1708 Contributor

1708

Posted
  • Author
Posted

No worries hope you have a good Christmas too! :)

Hi Paul,

Problem solved.

The expansion tank IS seperate.

I removed the air filter housing, moved over the power steering reservoir and the small round reservoir that attaches to the rad housing next the top hose.

I then un-clipped the hose thats fits in the bottom of the expansion tank (there is only one) The tank is now free. I then very carefully wiggled the tank around and it finally came free. It was stubborn to get it out. To fit the new one, just reverse the process. The only trouble I had was the top house kept leaking,

but all in all wasn't difficult.

Once again thanks mate.

Guest Mr.Beemer

Guest Mr.Beemer

Posted
Posted

was going to say its seperate from radiator and dont need to change anything apart from the tank itself. just bleed the system well through.

glad you sorted it :P

1708 Contributor

1708

Posted
  • Author
Posted

Iv'e bled the system and alls well. Only one bleed as well.

Thanks for all the replies fellas,

Merry Christmas!

  • Like 1

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