Hi Hugues,
Coldfire v4.0 is too old, I don't think it's still available on external website.
please summit a case to NXP support system. we can send it to you via transweb.
regarding to how to summit case:
How to log an issue in Case system instead CRM (Service request - not used anymore)?
here is to download update v4.0.1 and v4.0.2
CodeWarrior Updates for Coldfire v6.2 & older|NXP
Have a great day,
Jennie Zhang
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