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Re: 735i overheating 1987 (archive)

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Posted by Bill O. on January 07, 2001 at 13:17:18:

In Reply to: 735i overheating 1987 posted by hunty on January 07, 2001 at 05:21:47:

My does not want to stay at a stable temp.A new radiator and termostat were fitted and all leaks were sorted but to no avail overheating in any situation is common motorway or trafic driving .Any ideas ???

Make sure that all air is bled out of the system, also that the small (8mm)hose/line from the top of the radiator to the fill tank is open. The system will not bleed all the air out with this clogged. Feel the top and bottom radiator hoses, If the bottom one is cooler than the top hose, coolant is not circulating properly (bad thermostat, air in system). If the hoses are the same temp and the rad is hot the fan coupling may be bad. On another note, if you have a leaky head gasket, these are same symptoms. Good Luck

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