(CVT?) buzzing sound
10-10-2023, 03:30 AM
#1
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B Class B200 W246
(CVT?) buzzing sound
Hello
when I soft pedal or slow down, usually in gear 1/2/3, I hear a buzzing faint noise coming from the front. It goes away at higher speeds.
if it rains, it is so faint that it’s difficult to hear. If happens only if I soft press the gas, very gently, and for a fraction of a second.
Sounds like a metallic spring in the seat, but it is not, it’s some sort of an electric sound.
Attached a recording, where I over do it.
any idea what it might be? Am taking the car to the MB dealership to get it checked out.
when I soft pedal or slow down, usually in gear 1/2/3, I hear a buzzing faint noise coming from the front. It goes away at higher speeds.
if it rains, it is so faint that it’s difficult to hear. If happens only if I soft press the gas, very gently, and for a fraction of a second.
Sounds like a metallic spring in the seat, but it is not, it’s some sort of an electric sound.
Attached a recording, where I over do it.
any idea what it might be? Am taking the car to the MB dealership to get it checked out.
10-11-2023, 04:09 AM
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B Class B200 W246
10-11-2023, 10:17 PM
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I listened to recording 5 times, sorry but no idea what that is
maybe a good independent MB mechanic could figure that out, for less than MB dealer
Possibly is your car showing any scan codes?
maybe a good independent MB mechanic could figure that out, for less than MB dealer
Possibly is your car showing any scan codes?
10-17-2023, 06:04 AM
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B Class B200 W246
11-12-2023, 08:56 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
OP, did you ever figure out what codes were stored?
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02-06-2024, 02:38 AM
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B Class B200 W246
Sorry for the late reply, I don’t have any scanner at home, is this something the MB dealer does regularly? It’s due for a service in a few weeks, I was thinking to combine the two things.
02-06-2024, 02:41 AM
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Hello, nope, we’ve decided to wait and combine with the next service which is due in a few weeks, I sent the recording to the MB dealer but they said that they need to replicate the noise themselves first to be able to take a look.
I noticed that when the car is cold, for the first 30”-60”, there is no noise. It starts after 30-60”.
I noticed that when the car is cold, for the first 30”-60”, there is no noise. It starts after 30-60”.
03-20-2024, 02:10 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Hello, nope, we’ve decided to wait and combine with the next service which is due in a few weeks, I sent the recording to the MB dealer but they said that they need to replicate the noise themselves first to be able to take a look.
I noticed that when the car is cold, for the first 30”-60”, there is no noise. It starts after 30-60”.
I noticed that when the car is cold, for the first 30”-60”, there is no noise. It starts after 30-60”.
