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Tech Article

BMW E30 3-Series Coolant Level Sending Unit

Last Updated: 05/01/2019
   
Parts Group: Coolant level sending unit
This article discusses the coolant level sending unit for the E30 with the main focus being on differences between early vs. late years. If you're not here for the technical analysis but would rather buy a used unit from us, guaranteed to work and fit, then please select the link below:The information herein is based on our company cars.

Between 1987 and 1988 some dramatic changes occurred to the E30 cooling system. The coolant level sending units, pre-change vs. post-change, were generally similar but the tops were different as to the electrical connectors they enable. The pre-change ones had two thin metal plates, offset at 90 degrees in one plane. The post-change ones had two more-sturdy round metal pins, parallel, a short distance apart.
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