My coolant resivour cracked and is leaking out rapidly. Dose that mean that thermostat is bad and is causing it to overheat to a point that it cracks the coolant resivour

Asked by Feb 18, 2017 at 10:23 AM about the 2009 Jaguar XF Premium Luxury

Question type: General

3 Answers


You would notice the temperature gauge reading hot if it did.


No, the reservoir is made of plastic and cracks after time. A low coolant level is probably why your overheat. Replace and fill with the proper coolant and level and it should't overheat anymore.


I had to replace mine recently due to a random crack occurring. All has been well since.

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