2016 Citroen DS3 i have a buzzing vibrating noise (like a mobile phone) going off i. the rear of the car somewhere?? single white female - please help?

Car: Citroen DS3
Year: 2016
Variant: Ds3 hdi
Categories: Leaks & Noises
Also my exhaust smells of ammonia??
Posted: Aug 25, 2022 (1 year ago)
Might be the fuel pump you are hearing , the exhaust smell sounds like the cat convertor working as it should . Sometimes different fuels can be worse than others
Posted Aug 25, 2022 (1 year ago)

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