211320725 Rear Air Springs Repair Kits For Mercedes W211 S211 W219

Reference OE/OEM Number:

2113200725, 2113201525, 2113201325, 2113200825, 2113201225'

Fitment:

replacement for Mercedes-Benz E-Class W211

E320 4Matic Sedan 4-Door 3.2L 2004-2005

E320 4Matic Wagon 4-Door 3.2L 2003-2005

E320 Base Sedan 4-Door 3.2L 2003-2005

E320 Base Wagon 4-Door 3.2L 2003-2005

E320 Bluetec Sedan 4-Door 3.0L 2007-2009

E320 CDI Sedan 4-Door 3.2L 2005-2006

E350 4Matic Sedan 4-Door 3.5L 2006-2009

E350 Base Sedan 4-Door 3.5L 2006-2009

E350 Base Wagon 4-Door 3.5L 2006

E350 Sport Sedan 4-Door 3.5L 2006-2009

E500 4Matic Sedan 4-Door 5.0L 2004-2006

E500 4Matic Wagon 4-Door 5.0L 2004-2006

E500 Base Sedan 4-Door 5.0L 2003-2006

E500 Base Sedan 4-Door 5.5L 2007-2009

E550 4Matic Sedan 4-Door 5.5L 2007-2009

E550 Base Sedan 4-Door 5.5L 2007-2009

E55 AMG Base Sedan 4-Door 5.4L 2003-2006

E55 AMG Base Sedan 4-Door 5.5L 2003-2006

E55 AMG Base Wagon 4-Door 5.5L 2006

E63 AMG Base Sedan 4-Door 6.2L 6.3L 2007-2009

replacement for Mercedes-Benz CLS-Class W219

CLS350 Base Sedan 4-Door 3.5L 2007-2011

CLS350 Base Sedan 4-Door 5.5L 2010-2011

CLS500 Base Sedan 4-Door 5.0L 2005-2006

CLS500 Base Sedan 4-Door 5.5L 2007-2009

CLS550 Base Sedan 4-Door 5.5L 2007-2011

CLS55 AMG Base Sedan 4-Door 5.4L 2006

CLS55 AMG Base Sedan 4-Door 5.5L 2006

CLS63 AMG Base Sedan 4-Door 6.2L 6.3L 2007-2011

Air Suspension Spring

Air spring, load-carrying component of an air suspension system used on machines, automobiles, and buses. A system used on buses consists of an air compressor, an air-supply tank, leveling valves, check valves, bellows, and connecting piping. Basically, an air-spring bellows is a column of air confined within a rubber and fabric container that looks like an automobile tire or two or three tires stacked on top of one another. The check valves admit additional air to the bellows from the air-supply tank to maintain vehicle height when the load is increased, and the leveling valves vent excess air from the bellows when the vehicle rises because of unloading. The vehicle thus remains at a fixed height regardless of load. Although an air spring is flexible under normal loads, it becomes progressively stiffer when compressed under an increased load.

Air Suspension Spring Benefits

• Air spring suspension absorbs vibration from the road, assuring a more
comfortable ride for people and payloads
• Air springs are a key component in leveling systems, allowing the truck and
trailer level to be adjusted for easier loading and unloading
• Superior air spring suspension performance can help improve fuel
efficiency and reduce wear on road surfaces
• Environmentally friendly manufacturing produces less rubber waste than
many competitors
• Rolling lobe air springs with clamping beads are supplied with pistons,
plates and the internal bumpers, where necessary assembled as a complete
unit
• Designed for longer stroke with minimal change in diameter for maximum
comfort
• High stroke enables loading/unloading and allows easier installation
• Backed by a limited 2-year warranty against manufacturing defects

Air Suspension Spring Work

Air spring, in technology, elastic machine component able to deflect under load in a prescribed manner and to recover its initial shape when unloaded. The combination of force and displacement in a deflected spring is energy, which may be stored when moving loads are being arrested or when the spring is wound up for use as a power source.

Air Suspension Spring Features

1. An adjustable configuration allows the user to fine tune desired damping, either continuously or at discrete settings.
2. A reducible gas spring has an adjustment style for gas shocks in which gas is let out to permanently reduce force capacity.
3. In a locking gas spring the position can be locked at ends or in the middle of stroke.

4. Valves can be included for fluid absorbers, a valve or port, which can be used to increase or decrease fluid volume or pressure.

Air Suspension Spring Real Photo:

About Us

HONGGU Air Springs are highly durable, precisely engineered and cost-effective for use in a wide variety of actuation and vibration isolation applications. With time-tested designs incorporating fabric-reinforced Wingprene or natural rubber flex-member construction and corrosion-protected end retainers, HONGGU Air Springs provide superior quality and performance. As actuators, they can provide either linear or angular motion.

These air bag products offer a favorable stroke-to-compressed-height ratio when compared to air cylinders, and they can accept a wide variety of actuation media such as air, water, nitrogen or anti-freeze. As isolators, they are effective in reducing the harmful effects of vibration. They also can simultaneously isolate vibration and regulate load height as well as allow for consistent vibration isolation under varying loads.

HONGGU supplies air springs for the majority of all light vehicles based on air suspension systems, making us one of the leading global air spring manufacturers.

Our products and technologies can be delivered separately or as a unit with the damper. The HONGGU portfolio ranges from front and rear axle air springs, to switchable multi-chamber air springs Our comprehensive air springs know how makes us a reliable and trusted component and module supplier for air spring applications of all sorts.

The key element in air springs for light vehicles are the rubber bellows. These essentially determine the comfort and service life properties. HONGGU offers three different types of bellows – axial, cross-ply – which differ in terms of the structure of their embedded reinforcing fibers.

In an axial sleeve, the fibers embedded in the elastomer run axially to the deflection direction. The cross-ply bellows has two layers of reinforcing elements, placed at an angle to each other. Unlike in a fabric, these elements are not connected. The cross-axial bellows, combines the great torsion decoupling capability of an axial sleeve with the dimensional stability of a cross-ply bellows.

FAQ

Advantage

1. we are top 3 of professional air suspension manufacturer in China.
2. our factory has 120 staff, and we only produce 100% newly air suspension products for 10 years.
3. we have cooperated with 80 overseas companies with stable relationships. many are also brands or big sellers at Amazon or EBAY websites.
4. we have our own cars to test our products,except normal test machine and IATF16949:2016 certificate standard.
5. we have complete production line, Mercedes Benz,BMW Audi,Porsche,Land Rover,Volkswagen-these are our products,we has complete products line.
6. Our air suspension/air compressor/air strut/air suspension parts 100% NEWLY manufactured to instead OEM
7. We manufacture air suspension/air strut/air compressor to instead OEM ;
8. Constant temperature workshop for core parts;
9. Japan automatic welding machine to weld