TIMS showed intermittent BCU fault at car 2509 since CCK2. ~~~~~ TIMS showed intermittent BCU fault at ca     Check Tims observed FC-308/312/331/330.BCU release fault multiple time happen.Fault able to duplicate.Found #259 ACU slow release and brake frame exhaust port heavy air purging. Replace ACU function test ok.BCP within criteria and no slow release. #2509 ACU- Old s/n: 1107-088 New s/n: 1302-130 Not: 2383886 raise. Done by Koh/Pravin. 22/05/22