Oveaheating

Asked by Chicagogiant Jul 11, 2018 at 06:29 AM about the 2003 BMW 5 Series 525i Sedan RWD

Question type: Maintenance & Repair

I've changed radiator, thermostat and casing, water can, fan and catcher and bleed the water system enough but, it still overheating

1 Answer
65,510

firebird338 answered 6 years ago

Does the A.C condenser coil set in front of or behind radiator ? If it sets in front of radiator condenser maybe clogged with dirt and bugs causing little to almost no air flow across coils no good air flow through condenser no air flow to radiator. Also to bleed air from system. Remove cap from overflow tank fill with antifreeze to full mark leave cap off and start vehicle and let idle you will notice level in tank will start to rise this is normal once thermostat starts to open level will drop add more antifreeze to full mark then put cap back.

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