Vehicle Questions and Answers
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Water pumps commonly fail in three ways, and the Mk7 generation of the Volkswagen Golf is no exception. If you are experiencing pump issues, the first signs are typically a squeal from the serpentine belt or the presence of a liquid puddle under the parked vehicle. These symptoms point to specific issues. The water pump's bearing is often the initial component to fail, which, while not costly to replace, can be challenging due to the limited space for maneuvering in Volkswagens. Another possible issue is a cracked pump housing, although less common, it can lead to significant fluid loss and should be addressed promptly.
It appears that the water pumps in the MK7, like mine, are known to have issues. Why did VW choose to use plastic pumps instead of metal? This design is causing owners more trouble and costly repairs. VW should consider creating a new water pump made from metal.
Signs of a water pump issue in the 2018 Volkswagen Golf MK7 include leaks of coolant from weep holes, bearing wear, and the engine overheating.