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Auto locks going on and off

670 views 3 replies 4 participants last post by  AntoN C. 
#1 ·
I have a 2001 SLK230, and for about the last 4 months when driving around the automatic locks go on and off. What may be causing this?
 
#3 ·
Auto Locks going Up and Down



I recently had the same problem. The MB service dealer checked it out and the vacuum pump was starting to go bad. The vacuum pump controls a lot of things on a MB. They replaced it with a better (upgraded) pump for about $1000 inc. labor. They also had to replace the wiring because this was a newer pump. Works like a charm now.:)
 
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