Pump like sound
11-30-2021, 08:22 AM
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C207, W124
Pump like sound
Hi forumers,
My c207 developed a “buda buda buda buda” or pumping like noise when on idle after driving. This noise is aggravated when the car is reversing even on a slightly steep slope. Dealership have even changed the fuel pump and charcoal canister but it was no use. I am attaching a video for you to hear and give me any ideas as to what to look for.
Tq
Mark
My c207 developed a “buda buda buda buda” or pumping like noise when on idle after driving. This noise is aggravated when the car is reversing even on a slightly steep slope. Dealership have even changed the fuel pump and charcoal canister but it was no use. I am attaching a video for you to hear and give me any ideas as to what to look for.
Tq
Mark
12-07-2021, 06:11 AM
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C207, W124
Just want to update my problem in case any other owners are face the same issue; the tech released the gas cap and the noise stopped completely. He said it was due to pressure build up but is unsure how to solve the issue. The cap was changed a year ago.
