Check coolant level

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Mid-life-crisis

Active Member
Posts
114
Location
Northern Ireland
2002 L322 td6
Ive got a 'check coolant level' alert, so I got a new sensor off ebay and it hasn't cured the problem.
C'est la vie
When I plug the old sensor in and stick a magnet beside it, the fault clears.
Anyone know if the sensor is a hall effect device which is operated by a magnet on the float inside the coolant tank?
And yes, there's plenty of water and antifreeze in the tank
Thanks
 
Mid-life-crisis said:
2002 L322 td6
Ive got a 'check coolant level' alert, so I got a new sensor off ebay and it hasn't cured the problem.
C'est la vie
When I plug the old sensor in and stick a magnet beside it, the fault clears.
Anyone know if the sensor is a hall effect device which is operated by a magnet on the float inside the coolant tank?
And yes, there's plenty of water and antifreeze in the tank
Thanks
Click to expand...
It's affected by the specific gravity of the anti freeze mix. Likely to be a reed switch but I honestly do not know for sure.
 
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