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Radiator Flush

Discuss problems you have had or are having with your Z4
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Puggsley2
Newbie
Newbie
Posts: 19
Joined: Sun Nov 17, 2013 12:03 am
Location: Perth; Western Australia

Radiator Flush

Post by Puggsley2 » Wed Jun 14, 2017 4:32 am

My 2005 E85 Z4 has not had the coolant changed for many years and the service manual that came with the car makes little mention of it. How often should the coolant be changed and am I risking damage if I use after market replacement fluid?

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Chris_D
Lifer
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Joined: Thu Apr 21, 2016 11:41 pm
Location: Mostly Holland. Sometimes UK.

Radiator Flush

Post by Chris_D » Wed Jun 14, 2017 7:51 am

It's a good idea to replace ur coolant at least every 20k miles as any fluids can deteriorate and become less effective.
Just done mine and following a thermostat and waterpump replacement has solved an overheating problem.
Think about replacing the waterpump too.

I flushed and replaced 5L using Kroon P11. Was led to believe I needed 8.5L
E85 3.0i roadie (03) 'Benny'. E93 320d M-Sport Cabrio (11) 'Bob'.
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'Always different, always the same.' John Peel on The Fall.

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