Accumulation of dried coolant (1) around the water pipe (2). This is caused by a gap between the housing...
Mazda technical service bulletin 01-012-22 for 2019-2022 Mazda MAZDA3, 2017-2021 Mazda CX-5 and 2017-2021 Mazda MAZDA6 and others.
- Bulletin number
- 01-012-22
- Component
- Engine and engine cooling
- Summary
- Some vehicles may exhibit accumulation of dried coolant (1) around the water pipe (2). This is caused by a gap between the housing and pipe due to a press fitting during the manufacturing process. The accumulated coolant is solidified and plugs the gap in high temperature environment and the seepage is stopped and does not progress. This is normal and does not require a part replacement, clean off the dried coolant from around the pipe with a wire brush.
Owners of these vehicles have filed 600 complaints in the engine category.
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