We are offering professional renovation for core parts of the Mercedes air suspension system from 1963 to the early 70s (Mercedes 600 from 1963 to1981), mainly level control valves, valve unit, anti-freeze device and pressure regulator for the 600 , W112 and W109. Other products are under development*.
You are probably familiar with the Mercedes models W 109, W 112 or even the W 100 from this time.
These models were designed with a ‘legendary‘ air suspension system, legendary in a positive way - the ride in such a car is superior compared to a steel spring system- but also legendary for the complications the owner might experience and finally legendary for its price.
The air suspension system technically was potentially the best suspension system on the market at the time it was designed. It was for sure the best-engineered system of its time. However also this well designed system needs rebuilding. Oh yes, you will notice when it is time. If your car drops within one week or so the time has come.
No doubt, the air suspension requires a higher degree of maintenance. And most possibly your system will work perfectly fine if it was brought back to spec. This means the failing components need to be repaired/ rebuilt and the system maintained according Mercedes specs.
The bad news is: The repair can be overwhelming and rebuilding the valves units by a qualified specialist does not come cheap. Engaged and experienced DIY people can repair some of the air suspension components but the renovation of the core components like the 3 level control valves, main valve, anti-freeze device and pressure regulator should be in the hands of the specialist. Too much knowledge, experience, specialized tools and precise instruments, testing equipment and parts are needed for rebuilding.
From my personal experience I can tell that you will enjoy every bit of a ride with a proper working Mercedes air suspension.
We work with passion and our products are based on integrity and honesty. We share our knowledge with the community and we like collaborating. We use the best technology and craftsmanship available. Our CNC parts are ‘Made in Germany’ and we use high quality seal rings and materials. All repaired parts and units run through extensive testing. We are giving a 2-year warranty for air tightness and function within specification for units and parts. You are requested to sending your units for rebuilding before we start and we will rebuild the units within ca. 2-4 weeks of turn-around or upon request. Prices are based on the assumption that provided cores are repairable which typically is the case. We will keep our clients informed about the process and communicate if there is a problem.
We take a $200 core charge for LCV-VNC, Anti- Freeze Device and $250 for the Valve Unit , $500 for the Pressure Regulator in case we deliver up front.
Manipulated Units: Very rarely I am finding ‘manipulated’ units. These are units that were previously "repaired" by non- professionals leading to partial destruction of inner parts. These are very difficult and time consuming to repair due to broken or missing parts. These parts need to be machined and the effort is obvious. Please understand that working on manipulated units will possibly cost some extra effort and in case I will communicate and discuss with the client. Thanks for your understanding.
Pressure Test Adapter: This tool is for easy testing and monitoring air pressure in the support group (air tank) and filling the system with shop air.
This tool is for the professional Mercedes shop but also for Mercedes enthusiast.
This tool screws into the pressure switch port of the valve unit and allows for easy and safe pressure testing / monitoring with a standard AC gauge and 1/4" flare hose. With a long hose system pressure can be monitored during driving.
Prices for rebuilding Mercedes Air Suspension W109 1965-72, W112 8/65-67, W100 1963-84 and W112-8/65
Units to be sent for rebuilding
|Level Control Valve for W112, W109 and W100, complete rebuilding.
LF/VNC 3/1 [0-500-003-004],
LF/VNC 3/2 [0-500-003-005],
LF/VNC 4/3 [0-500-003-006].
These are the 3 later style units for front- right, front- left and rear.
|$580 per unit|
|Level Control Valve for W112 , complete rebuilding.
LF/VNB 3B2 / 3A2, Front Left
LF/VNB 1B1/ 1A1, Front Right
LF/VNB 2B1 / 2A1, Rear
These are the 3 earlier style units, before 1965
|$880 per unit|
|Main Valve for W112, W109 and W100, complete rebuilding, pressure switch excluded.
|$550 per unit|
|Anti-freeze device, rebuilding inner valves and all rubber seals, paper air filter change included.
|$480 per unit|
|600 Pressure Regulator (W100), complete rebuilding and pressure adjustments.
|$1080 per unit|
|Drain Valve (bottom of air tank), complete renovation
LF/ VE [0-500-400-001, -002]
|$120 per unit|
|Main Check Valve (engine side of air tank, complete renovation
LF/VB (0- 500- 100- 001, -002, -003)
|$120 per unit|
|Air Filter Unit (part of anti freeze device) complete
renovation, paper air filter change included
|$120 per unit|
additional parts/machining bronze bearing
new piston pin
|$900 per unit
Customer is covering shipping, duties and customs clearing (for shipping outside the US)
Core charges for up front services:
$200 for LCV-VNC and Anti-Freeze Device core
$250 for the Valve Unit core
$500 for the Pressure Regulator core
Core charge will be refunded after receipt of core
Professional Experience: Maybach/MTU/Mercedes in Germany
141 South Great Rd.
Lincoln, MA 01773, USA
I have a MB 300 SEL 4,5 that suffered from a leaking air suspension. The problem kept getting worse all the time and in the end the car was on her belly overnight. We managed to point the leak to the left front valve levelling bar hindge. Luckily I found Mr Werminghausen and his 600 Airsuspension on Youtube and contacted him via email. Since my car was already scheduled at the workshop Mr Werminghausen generously proposed to send me one of his already reconditioned valves and refund me as soon as he received my old leaking unit.
We followed the instructions found online at 600airsuspension.com and the fix was a perfect success. My car is in the Finnish national museum-car-registry, so it was imperative to use original parts to solve the problem. Nothing could be more original than the reconditioned original part. I am very happy with the workmanship and service of Mr Werminghausen.
All other old valves seem to be air tight so far, but when the eventual leaks appear I know who to call. I’m also considering a complete overhaul of the entire system in advance, but I’m having hard time convincing my engineer to change something that is not broken - yet.
Dear Mercedes Enthusiasts, I love these old Mercedes systems and so I was naturally drawn to 600 hydraulics. I was exploring the W100 comfort hydraulics and have researched and started renovating 600 Comfort Hydraulic systems for the Middle East including pumps, accumulator, switches, connectors and pistons . Similarly I worked with the W116 6.9 Hydro Pneumatic Suspension (HPF). I renovated 6.9 suspensions with all their components. For each system I developed my own set of tools, test stands and testing procedures. I use only best quality materials, products and machining. I’ll give 2 years warranty. Martin Werminghausen
Prices for rebuilding Mercedes 600 comfort hydrailic units to be sent for rebuilding
|Hydraulic Pump Bosch or Barmag, complete rebuilding||$1,250|
|Piston accumulator ATE/Teves||$1350|
|3- way connector||$220|
|2- way connector||$160|
|1- lever switch, level excluded||$490|
|1- lever switch w/ throttle, lever excluded||$520|
|2-lever switch . lever excluded,||$650|
|3- lever switch, lever excluded||$810|
|4- lever switch, lever excluded||$960|
|Single acting ram, inner piston seals excluded||$100|
|Double acting ram , inner piston seals excluded||$180|
Dear Mercedes 6.9 Community , at the same time I explored the 600 Comfort Hydraulic I worked with the W116 6.9 Hydro Pneumatic Suspension (HPF). I renovated the 6.9 suspension for a friend and later on thought about offering this service to the community. For the 6.9 HPF system I developed and built my own set of tools, test stands and testing procedures. I offer professional rebuilding. I use only best quality materials, products and machining. I’ll give 2 years warranty. Martin Werminghausen
Prices for rebuilding Mercedes W116, 6.9 Units to be sent for rebuilding
|HPF pump, Bosch||$440|
|HPF pressure regulator||$850|
|HPF switch unit (attached to pressure regulator)||$350|
|HPF axle valve||$650|
|HPF strut , ball joints excluded||$850|