Chirp at warmup
11-22-2022, 07:09 PM
#1
Senior Member
Thread Starter
Chirp at warmup
Small chirp chirp at start up that goes away as it gets warmer. It's not as constant as a water pump......
11-23-2022, 08:40 PM
#3
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Join Date: Jan 2019
Location: Palm Beach, Fl
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2016 S550 sport, 2018 GLC300, M3, Zo7, 2021 Sierra Denali
Usually a tensioner pulley. A bit soon for a 2019 to need that though. But any mechanical part can fail or have a quality control issue.
11-23-2022, 09:07 PM
#4
Senior Member
Thread Starter
12-03-2022, 12:22 AM
#5
Having this same chirp just at start up then it goes away
12-03-2022, 12:29 AM
#6
Having this same chirp just at start up then it goes away
12-03-2022, 07:44 AM
#7
Out Of Control!!
Join Date: Sep 2018
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2017 GLE350 4MATIC
Chirp is classically related to drive belt, pulleys or tensioner.
