Mercedes Benz C Class vehicle noise

Car: Mercedes Benz C Class
Variant: Elegance
Model Year: 1999
Categories: Leaks & Noises
When either parked and/or driving the vehicle has intermittently emitted a high pitched whistling/screeching noise. Recently the sound has occurred whilst the vehicle is stationery with engine off in the garage and has stopped when I have started the engine.
Posted: Apr 2, 2018 (6 years ago)
Only thing I can think of would be a resrtiction on exhaust somewhere but would have thought there would be a drop on engine performance .
Posted Apr 2, 2018 (6 years ago)
my engine runs after the
engine turned off and keys are out
Posted Apr 8, 2018 (6 years ago)

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