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Guide: Replacing Water Pump and Thermostat - E89 N54 (and radiator)

Angel_e39 said:
Thanks for your help I really appreciate it

I've had zero luck finding any tutorials or step by step for the n20 version. I'm at the part where I need to remove the bolts now so that means my thermostat is out and I've drained the coolant. Hoses on the pump are out as well. Just those damn bolts with the zero access.

I got the wrenches you used in my amazon cart now and if the wrench that's on it's way to me now doesn't work (No flex head) I'll buy yours

Do 12-point work on External Torx bolts fairly well?
Click to expand...

Look for N20 videos on 3/5 series’s?


DO NOT use a 12 point in place a proper torx driver..you’ll be in deep doo-doo
 
FCP EURO has a great video on an n20 but he removed the bolts from the bottom. In my e89 n20 the steering rack is in the way
 
B21 said:
DO NOT use a 12 point in place a proper torx driver..you’ll be in deep doo-doo
Click to expand...

Very true.. especially on the softer aluminium bolts! etorx/torx socket sets are fairly inexpensive, if yours are torx/etorx, there are flex head socket wrenches as well.
 
So I ended up removing the steering column since it actually was not that difficult.
powersteer.png

Once I removed it I realized that it was a required step no way could I have gotten such a clear shot to the bolts without it off.
bolts.png
pump.png

I'm going to post two videos that helped me remove the steering rack for others

Here are some pics for the location of the bolts.
boltsesp.png
vstrut.png
steering-column.png
 
Angel_e39 said:
So I ended up removing the steering column since it actually was not that difficult.
powersteer.png

Once I removed it I realized that it was a required step no way could I have gotten such a clear shot to the bolts without it off.
bolts.png
pump.png

I'm going to post two videos that helped me remove the steering rack for others

Here are some pics for the location of the bolts.
boltsesp.png
vstrut.png
steering-column.png
Click to expand...

:thumbsup:
 
These look excellent instructions, however, I have an N52 3.0litre.
I cannot find specific " N52 how to" on this forum; can I follow this successfully, or can someone please point me in the right direction?

I am concerned about buying the appropriate torx spanner.

Thank you.
 
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