Mercedes-Benz S320 Problem Report
Mercedes-Benz S320 Closing Assist/Door Lock Issues Due to Pneumatic System Problems
Problems with the pneumatic system can cause closing assist and door lock issues.
AUTOMATIC LOCKS DON'T WORK AND CAN'T LOCK DOORS USING CENTRAL LOCKING SYSTEM - Visitor
can not unlock any door. levers only go up half way but not fully up it almost feels like not enough air to push em up. trunk opens fine - Visitor
Intermittent door/trunk closing assist. Found that pulling fuse and re-installing would resume proper function. Currently researching specific cause. Suspect relay or switching device in system. - Visitor
Closing Assist, drivers Door Issues Due to known reason. - Visitor
I have to manually push all rear and passenger doors locks down. Then use the ignition key to lock the driver's door. I got to manually slam the trunk down and then lock trunk w/ ignition key. - Visitor
Easy fix for this problem. Access pump at back of trunk and check air lines for tighness. Can adjust amount of tension applied to doors and trunk. Search web for exact fix but very easy fix. - Visitor
Problem began with a battery that does not hold a charge. - Visitor
power locks don't work and trunk,Closing Assist/Door & trunk - Visitor
door locks dont work with key or button trunk wont open with button inside car rear backup bars in rear quarter pannels wont go down - Visitor
Doors will open atfer being unlock with key or remote - Visitor
Just quit on me. Have to unplug the fuse every now and then to close the trunk properly. - Visitor
DOOR LOCKS WILL NOT UNLOCK-MAINLY DRIVER'S SIDE REAR. TRUNK WILL NOT OPEN SOMETIMES WHEN INTERIOR SWITCH IS DEPRESSED. PNUEMATIC MOTOR REPLACEMENT. - Visitor
door lock or unlock not work but light work - Visitor
The key fob would open and close the door locks but stopped working. I replaced the battery in key - no luck. Have to push down on other door locks - use key to manual lock drivers door. Trunk does not open nor does gas cover open. Right now unable to put gas in car. - Visitor
auto locks dont work - wayfarer100
My trunk seems to b open when it's closed. People stop me and tell me my trunk is open. Why won't it close all the way down? - Little mike
Door becomes ajar after closing. Doesnt lock correctly if ajar when alarm is set so I open the door when I return, having forgotten I left the alarm on and the alarm goes off - jmpS320
can luck doors using the main power luck. Can open the trunk from inside and I do not hear the pneumatic system working - Visitor
Doors star acting lack sistem donot want to work - Visitor
It's like it is dead, does not work and putting the key in the drivers door barely works . some times takes me minutes to get my door open - Visitor
power locks don't work. all doors don't unlock even the main switch, including doors/trunk clos...
When any of the doors are open and not locked it won't do this. But when all the doors are clos...
power door locks and closing assist door & trunk don't work
my interior trunk open release button not working, the interior automatic doors, lock button no...
I live in Qatar , at summer the wether heat reach up to 47 degree , befor my car heat was suita...