'92 300TE 4matic SLS valve noise ??
 

Hi everybody,
the leveling valve under the rear of my wagon is making klicking noises. They sound metallic, repeat about every two seconds and are loud enough that you can hear them over the radio when sitting at idle. It could be the valve opening and closing, but I don't think it should be that often or that loud. My pump is working fine, there are no leaks and the fluids are no more than six month old. The back is not sagging either, if anything it sits a little bit to high. Could it be bad accumulators that keep the pump going ?

Any help and advice is greatly appreciated.