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Q: Why does theVacuum assist work on one but not all the doors..trunk works on 1994 Mercedes-Benz S500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Problem began after a leaky transmission seal was replaced.. Tech admitted that a vacuum line was
Detached but replaced without apparent damage
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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try this. in the trunk where the fuses are find the fuse for the pse system. this is what controls the vacuum pump. when the fuse is removed it will reset the vacuum pump module. try the doors again. usually what happens is the rubber diaphragm begins to leak. this causes the pump to run longer and get hot. it will shut down and need to be reset. this is not a fix but away to check the system
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