Nick310

Having my cls 550s front left air strut replaced with an aftermarket one and was wondering if i needed the compressor replaced as well since it’s an aftermarket piece. Dealership has been bsing me about fixing it and i don’t want to buy just the one part if i need to replace both parts. Was driving on the freeway when i heard a loud bang or pop like my tire popped or exploded, car indicator was saying vehicle too low and to pull over & stop driving . Car drives fine but just sags low on driver front left side. All help or opinions are appreciated, thanks. Also getting the part from 1aauto if anyone has opinions on them as well thanks.