Early Mercedes Air Suspension Leveling Valve Bench Testing: Classic Series ’50 to ’74 Part 21





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Published on Jan 2, 2014

In part 6 in this multi-part series on air suspension, Martin Werminghausen (a German mechanical engineer) will show you some of the steps he has to go through to make sure the internal check valves are not leaking before the leveling valve is reassembled. This is only a quick overview and is not meant to be a complete video instruction. Martin does not feel overhauling these valves is a practical job for the DIY mechanic For those of us who own an air suspension Mercedes, nothing is more discouraging than to go out to your garage and see your W112, W109 or 600 sitting down on the oil pan! Martin will explain why testing and final adjustment is so important to a properly functioning leveling valve.

Be sure to watch the other parts in this series to get the back ground on the problems with this unique suspension system and what is required to rebuild a leveling valve.

This is just one part in big multi part series Kent is doing on OLD Mercedes Benz. 20 years ago many of these models did not seem that “old.” but now they suddenly are and some are becoming quite valuable. Kent will focus on what he feels are the affordable classics. Other than maybe a walk-a-round he will be not doing much on the likes of the 300SL gull wings and roadsters. He hopes to cover the Pagoda W113s in some of these videos. As this is being filmed in 2014 even these will not be “affordable” in the not too distant future. To view the full series click here: https://www.youtube.com/playlist?list...

For parts, overhaul kits, manuals and repair information be sure to visit. https://mercedessource.com.
Use the search box or solutions finder to locate the tech help or products you are looking for. Remember, we do not carry everything for every model!

The models included in this series are:

1950’s models 170D, 180D, 190, 190d, 220, 220S, 220SE. 1960’s models W111 220S, 220SE, 220Seb, 250SE and 280SE, W110 models 190d, 200D, 200 and 230, W113 models 230SL, 250SL, and 280SL, W108 models 250S, 250SE, 280S, 280SE and 280SEL, W109 models 300SEL, 3.5, 4.5 and 6.3, R107 models 350SL and 450SL, W114 W115 models 220, 230, 250, 250C, 280, 280C, 220D and 240D and early W116 models 280S, 280SE, 450SE and 450SEL

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