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Intermittent chirping sound

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Old 07-03-2024, 02:40 PM
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C300 2015
Intermittent chirping sound

2015 C300 Sedan, 40K miles.
Local dealership including service manager, shop foreman, etc. have so far failed to properly diagnose and repair this issue. Intermittent chirping sound (see video) from front end of the vehicle. Three separate repair attempts, but the issue re-occurs every time, typically after about 15-20 minutes of driving.
Things that have already been tried:
- Replace fan belt and fan belt pulley assembly (twice)
- Replace water pump
- Replace timing belt tensioner

Every time the car is supposedly "fixed" the issue simply re-occurs. We are $4,100 into this marathon and at some point it won't make any financial sense to keep pouring money into this 2015 C300, low mileage and all.

Any insights or suggestions?

Attached Files
File Type: mpg
chirp 2 a.mpg (1.21 MB, 8 views)
File Type: mpg
chirp_a.mpg (2.77 MB, 6 views)

Last edited by C300NYC; 07-03-2024 at 09:23 PM. Reason: Updated video files
Old 07-03-2024, 06:25 PM
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W205 2015
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