G-Wagen OME Coil Springs by ARB

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  • US 2003 G500 on Medium springs
  • Aussie G-wagon on 50mm OME suspension
  • Look Familiar?  These are stock Mercedes progressive springs....broken as usual after a lot of use.

Product Reviews

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  1. Superb improvement over G55 suspension

    Posted by Kelvin on 8th Feb 2017

    I bought the complete OME suspension kit to replace the OEM suspensionon my 2010 G55, the improvement has been dramatic, it's incredibly more comfortable, I can go over speed bumps comfortably without rattling my whole car, and the best part is the looks, it lifted the car I would say over 2 inches, I didn't measure but the car looks way better now, more rugged, in my opinion this the best mod I've made to my car, I love riding my G even more now.

ARB

$530.00
Weight:
64.00 LBS
Shipping:
Calculated at checkout

Product Description

 Viking Offroad offers this suspension system for the Mercedes G-class vehicles in the USA. This is a suspension made and tested in Australia by ARB previous to the official release in the USA. The OME suspension is extremely rugged and heavy duty specifically designed for fully loaded overland vehicles. Unloaded this is a full 2"+ lift due to the strength of these coil springs. Matched with the new Nitrocharger Sport shocks specifically for the G-wagen offers a suspension worthy of any overland trip.

This option is definitely the best system for heavily outfitted vehicles which will navigate the mountain passes and wilderness easily with these springs. For those wanting more articulation and a lighter ride, the stock setup or THOR springs with FOX Shocks may be for you. Although ARB/OME calls these medium duty, our opinion is they are heavy duty when compared to any other springs available for the G. It is not recommended to get the 3029 "Heavy" OME front springs unless you have either a diesel power plant or a permanently mounted winch and heavy winch bumper.

Springs are sold in pairs front both sides and rear both sides. it is always imperative to replace springs and shocks at all 4 corners for best performance and safety. To order a complete set, order one each front and rear springs and shocks, making it 4 separate part numbers. Alternately you can click on one button and order the complete kit (medium or heavy). Simply select "Complete Suspension Kit - Medium" or "Complete Suspension Kit - Heavy."

FEATURES - Suspension System

  • OME Medium FRONT Springs 3028 (recommended for all gasoline powered and optionally with VTS removable winch)
  • OME Heavy Front Springs 3029 (recommended for diesel powered and optionally heavy permanently mounted winch bumpers)
  • OME Medium REAR Springs 3030
  • Gloss black powder coated finish
  • Shock Absorbers: OME Nitrocharger Sport
  • Australian outback tested, proven Old Man Emu suspension systems used on Toyotas and Land Rovers for years if not decades
  • Made in Australia

Comparisons

OME Springs vs. ORC Springs
Both are powder-coated, and both give your vehicle a lift. That's where the similarities end.

Differences: 
  • Price: The ORC springs retail at a significantly higher price
  • Place of manufacture: OME=Australia, ORC=Germany
  • Color: OME=black, ORC=blue
  • Stance: OME tend to lift the rear higher than the front, particularly when no gear or equipment is there to weigh it down. ORC springs have a variable spring rate, so they generally keep the front and rear ends of the vehicle level whether weighed down or not (with the exception of vehicles that are fully-loaded with overland equipment).
  • Stiffness: OME springs are most appropriate for vehicles that are regularly and fully loaded with overland gear and such. For most, they may not be the best choice for daily driving because they offer a very stiff ride. THOR springs are a better choice for vehicles that are not regularly and fully weighed down with gear. ORC springs give a noticeably softer ride than the OME springs, but OME springs are better for the purpose of carrying heavy gear.
  • Lift: OME=approximately 50mm; ORC=approximately 40mm. We found 40mm to be a safe lift limit that offers better stability

OME Springs vs. THOR Springs
Both are powder-coated, and both give your vehicle a lift. That's where the similarities end.

Differences: 
  • Price: A difference of about $110
  • Place of manufacture: OME=Australia, THOR=USA
  • Color: OME=black, THOR=Mercedes Racing Silver
  • Stance: OME tend to lift the rear higher than the front, particularly when no gear or equipment is there to weigh it down. THOR springs have a variable spring rate, so they generally keep the front and rear ends of the vehicle level whether weighed down or not (with the exception of vehicles that are fully-loaded with overland equipment).
  • Stiffness: OME springs are most appropriate for vehicles that are regularly and fully loaded with overland gear and such. For most, they may not be the best choice for daily driving because they offer a very stiff ride. THOR springs are a better choice for vehicles that are not regularly and fully weighed down with gear. THOR springs give a noticeably softer ride than the OME springs The variable rate on THOR rear springs, however, makes them a competitive option for carrying overland gear as well even though OME springs are better for the purpose of carrying heavy gear.
  • Lift: OME=approximately 50mm; THOR=approximately 40mm. We found 40mm to be a safe lift limit that offers better stability

Items in Included in Purchase Options

"Complete Springs Kit - Medium" Includes:

  • One pair Medium front springs 3028
  • One pair Medium rear springs 3030

"Complete Springs Kit - Heavy" Includes:

  • One pair Heavy front springs 3029
  • One pair Medium rear springs 3030

"Complete Suspension Kit - Medium" Includes:

"Complete Suspension Kit - Heavy (Diesels & Heavy Winch Bumpers)" Includes:

Approximate Shipping Dimensions for One Pair of Coil Springs: 18" x 14" x 5"

A note on factory Progressive Spring Rate: Mercedes is very particular in assigning spring rates for variously outfitted trucks, especially the W460 models.  It seems they have an endless supply of various colors and number of color marks per spring from one to three.  Eventually they ended up eliminating most of these and settling for pretty much one rate for the US based trucks after 2002. Newest models use a softer spring for a comfy ride like Land Rovers.  However, the rear coil on all factory G-class springs are progressive rate springs. Meaning the coil wire gets progressively thicker as it gets closer to the center of the coil.  This thickness progression correlates with how much weight it can carry.  When unloaded the vehicle is designed to sit a little higher on the back end.  After loading up to the max load capacity it settles close to flat or horizontal. This is where the "progressive" part comes in to compensate for the extra load.  Current Jeep Wrangler models also use this technology.  Many think this is for a softer ride to soak up small bumps, which this may be true to an extent; however, it is primarily used for the variable load in the back relating to vehicle stance.  When offroad my opinion is it makes no difference whatsoever whether you have progressive springs or not, you can’t feel the difference in general.  So for lifted vehicles or rigs made to carry a load over rough terrain this progressive part has nothing to do with ride quality.  So a linear rate spring like the OME or most coil springs work well. Contrary to popular belief ride quality comes mostly from the shocks not the springs unless they are really stiff and not matched well to the vehicles weight.  If you want a soft ride, buy springs from a new g-wagen and use shocks that are relatively weak to match the springs.  Stock Mercedes shocks for the G500's produce a "stiff" ride because they are made for the relatively “stiff” springs and to really hammer on the pavement and rough roads.  So, the OME springs that are non-progressive are heavy duty and made for rough offroad driving with a load.  Best of all they will not break like the factory springs.

 

Further reading from ARB...

OLD MAN EMU SUSPENSION SYSTEMS:

Engineering aftermarket 4WD suspension is extremely complex. Determining the right solution for your vehicle and your requirements demands special attention to many factors. Unlike numerous aftermarket suspension systems, which are only available in a single configuration targeting lift height, Old Man Emu offers a range of tuned and matched integrated suspension systems to ensure the right suspension is available to suit how the vehicle is outfitted and the conditions it will encounter.

DESIGN & DEVELOPMENT

The Old Man Emu suspension engineers’ objective was to develop an integrated suspension system for the Mercedes G Wagon. The key areas that were considered were lift, load carrying and comfort. After test driving the original suspension set up it was noted the ride characteristics were very controlled giving a sporty feel, however when larger bumps were encountered bump stop engagement was frequent. In general, the ride was considered quite firm. A 50mm lift was targeted as this improves not only ground clearance but increased suspension travel. This allows more scope for shock tuning and resulted in a more compliant comfortable ride while maintaining excellent control. 

FRONT SUSPENSION

Springs: To maintain good vehicle control a significant spring rate increase over the OE was developed. 2 spring options were chosen to cater for vehicles with and without accessories or vehicles with different engine configurations.

Shock Absorbers: A development, tuning, and testing project was undertaken to correctly match the ride quality to the spring rate. A longer travel shock was developed and tuned which has resulted in a more comfortable ride while maintaining excellent control in all driving conditions.

REAR SUSPENSION

Springs: A tapered wire progressive rate spring was developed to fulfill a supple and comfortable ride when the vehicle is empty but also have the ability to carry loads. This progressive rate spring will cater to vehicles that require optimized ride quality but also occasionally carries load.

Shock Absorbers: A longer travel shock was tuned to match the rear coil to provide comfort, control and increased travel. 

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