Close assist
08-01-2006, 01:38 AM
#1
Almost a Member!
Thread Starter
Join Date: Jun 2006
Posts: 39
Likes: 0
Received 0 Likes
on
0 Posts
Close assist
Im working on an '03 S430 with close assist doors which arent workng on the front doors, I thought about replacing the entire door lock actuator but when checking the actual values on the DAS the micro switch is operating normally. My second guess is the PSE pump/control unit malfunctioning. Has anyone dealt with this problem before and have any advice? 
08-02-2006, 06:19 AM
#4
MBWorld Fanatic!
Join Date: May 2003
Location: Houston, TX
Posts: 4,002
Likes: 0
Received 98 Likes
on
52 Posts
2015 E250D
I was looking at retrofitting closing assist in the S and did not see anything mention a pump. Perhaps tied to the lock system? I must have over looked it.
08-04-2006, 06:27 PM
#6
MBWorld Fanatic!
Most likely the PSE pump. It may also have an air leak in the system. Test fit a pump, if that doesn't work I'd start looking for air leaks in the system. 
