For your consideration is this vaccum hand pump pressure testing kit from Mercedes Source for older mercedes vehicles. This looks like this was made for vehicles in the 1978 to 1984 age range but you could go onto the Mercedes source site to see if it will work for your vehicle. This came out of a large lot of abandoned goodsand the shipping box was still sealed shut when I bought it. The box included the pressure teating kit, an instruction manual, a vcv vac control testing kit, and a modulator pressure kit. I included pictures from the shipping invoice in hopes it will help claify what these will be good for.
