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E89 20i Coolant Change

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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peteinnit
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Location: Hastings East Sussex

E89 20i Coolant Change

Post by peteinnit » Sun Nov 26, 2023 1:53 pm

Hi all,
I'm about to do a coolant change and have been looking for info on the location (if there is one) of the drain plug on the engine block, can anyone advise please? I haven't been underneath yet, would prefer to know where it is before getting under and making assumptions even if it does look obvious. Picture would be great :) . I haven't found any info/guide specifically for this N20 engine, but assume it's similar to others and there is plug on it too. Man, I wish Haynes would do a manual on these :D .

Cheers all.

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B21
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E89 20i Coolant Change

Post by B21 » Sun Nov 26, 2023 4:08 pm

Drain is done by disconnecting lower engine to radiator connection at the radiator..

Joining TIS is the best bet for how to on E89s..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

peteinnit
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Posts: 19
Joined: Sun Feb 08, 2015 2:58 pm
Location: Hastings East Sussex

E89 20i Coolant Change

Post by peteinnit » Sun Nov 26, 2023 9:08 pm

Excellent, thanks for confirming that.

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