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The BMW Range
3 Series
E46
Water Level - E46
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<blockquote data-quote="Daiichi" data-source="post: 411366" data-attributes="member: 9309"><p>You may be suffering a small leak in the temperature sensor located in the lower left radiator hose. The lower left hose from the radiator holds a temperature sensor that controls the electrical fan. This sensor uses an O-ring that can shrink and harden with age, allowing small amounts of coolant to ooze when the engine is hot and the radiator is under pressure, but the amount evaporates or blows off, without leaving much of a trace. No tools are needed and the only part you have to get is a new sensor, P/N 13621433077</p><p></p><p>[ATTACH]13168[/ATTACH]</p></blockquote><p></p>
[QUOTE="Daiichi, post: 411366, member: 9309"] You may be suffering a small leak in the temperature sensor located in the lower left radiator hose. The lower left hose from the radiator holds a temperature sensor that controls the electrical fan. This sensor uses an O-ring that can shrink and harden with age, allowing small amounts of coolant to ooze when the engine is hot and the radiator is under pressure, but the amount evaporates or blows off, without leaving much of a trace. No tools are needed and the only part you have to get is a new sensor, P/N 13621433077 [ATTACH]13168[/ATTACH] [/QUOTE]
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