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The BMW Range
5 Series
E39
E39 530i MS -Coolant burst out expansion tank but engine cold.
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<blockquote data-quote="azan23uk" data-source="post: 35963" data-attributes="member: 8654"><p>Hi All. My previous E39 528i never had this issue. Lately, when checking coolant in the morning when engine cold, my coolant always bursts out when i open the expansion tank cap. Is it normal or there is something sinister lurking? My suspicion is my head gasket has leaks and causing the engine compression to pressurise the cooling passage beyond its limits. My mech says its quite normal to have this. I have doubts. Anyone have an idea? Tq bros.</p></blockquote><p></p>
[QUOTE="azan23uk, post: 35963, member: 8654"] Hi All. My previous E39 528i never had this issue. Lately, when checking coolant in the morning when engine cold, my coolant always bursts out when i open the expansion tank cap. Is it normal or there is something sinister lurking? My suspicion is my head gasket has leaks and causing the engine compression to pressurise the cooling passage beyond its limits. My mech says its quite normal to have this. I have doubts. Anyone have an idea? Tq bros. [/QUOTE]
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E39 530i MS -Coolant burst out expansion tank but engine cold.
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