2007-2008 Mercedes-Benz R320 CDI Rear Air Only Conversion Kit (MR1R0)

THIS KIT FITS

• 2007 MERCEDES R320 CDI
• 2008 MERCEDES R320 CDI

Convert Your AIR Suspension To A Coil Spring SuspensionEnd Your Suspension Problems Forever...

Strutmasters 2007-2008 Mercedes-Benz R320 CDI Rear Conversion Kit is the perfect solution to your rear suspension problems. Designed to be very affordable, you can convert your rear suspension to use standard shocks and coil springs for less than the price of replacing one Air Spring. KIT CLASS: PREMIUM WARRANTY: LIFETIME

FEATURES:

• Saves Money
• Replaces Your Rear Air System
• All New Components
• Rides Great
• No Modifications Required To Install
• Easy To Install
• Premium Springs

KIT INCLUDES:

• 2 Rear Shocks
• 2 Rear Springs
• New Mounts
• All Necessary Hardware
• Detailed Instructions

Product Notes:

• Fits The W251 Chassis
• Kit Does Not Fit R320 CDI WITH AIR AT ALL 4 CORNERS.
• This kit fits both 2WD and 4WD models.

Replaced Components
The 2007-2008 Mercedes Benz R320 CDI is built with the following rear suspension components:

2007-2008 Mercedes Benz R320 CDI Electronic Shocks (x2)- shocks whose dampening capabilities are controlled by the suspension control module.

2007-2008 Mercedes Benz R320 CDI Air Springs (x2)- commonly referred to as air bags, a plastic and rubber bag that is fitted on top of the strut that uses pressurized air as a cushion instead of a metal coil spring to hold a vehicle off of the ground and off of its wheels. These are the number one cause of all air suspension leaks. All air springs all go bad at about the same rate. If one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time.

2007-2008 Mercedes Benz R320 CDI Height Sensors (x2)- a linkage located near each wheel of a vehicle with any electronic suspension that, either mechanically or electronically, constantly measures the height of the vehicle, and reports this information back to the control module so that the computer can identify if changes in height need to be adjusted accordingly. The ride height sensor is a moving part, and like all moving parts, they will eventually wear out.

2007-2008 Mercedes Benz R320 CDI Air Lines- tubes that run from a compressor to the air springs, which carry pressurized air to the air bags.

2007-2008 Mercedes Benz R320 CDI Solenoids (x2)- usually L-shaped, these plastic components connect the electrical connection and lines of suspension components to the suspension control module on vehicles with active suspension. The solenoid regulates the air pressure for each air spring. Solenoids start to leak as they wear out causing the vehicle to sag or to lean. This will cause the ride height sensor to send a signal to activate the compressor in an attempt to inflate the air suspension and level out the vehicle. This excessive work load will eventually lead to total failure of the compressor.

2007-2008 Mercedes Benz R320 CDI Compressor Assembly- creates/sends pressurized air to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure. Buying replacement struts and taking the time to install them only to find out the compressor still needs to be replaced can be very frustrating, time-consuming, and expensive.

2007-2008 Mercedes Benz R320 CDI Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicles correct ride height.

2007-2008 Mercedes Benz R320 CDI O-rings- although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

Suspension Failure Signs
Look for the following signs that indicate the suspension is going bad or leaking on the 2007-2008 Mercedes-Benz R320 CDI. Early detection of a failed suspension is the key to avoiding total failure. Any sudden height variance between different sides of the vehicle is a major red flag. Look for one sagging end, one inflated end, a squatting down appearance, or a shifting lean from side to side. These imbalances, if not fixed promptly, will put a strain on the air compressor and cause it to wear out. If the air compressor runs too often or has ceased working already, then a suspension warning light will illuminate on the dashboard. At this point, suspension failure is advanced and a repair will be expensive.

OEM Replacement Cost
'+ Rear Electronic Shocks ($740/shock)
+ Rear Air/Hydraulic Spring ($430/spring)
+ Air Compressor Assembly ($540)
= TOTAL: Over $2,800 (and that doesnt even include replacing electronic components that are known to fail such as the height sensors).

Aftermarket Replacement Cost
'+ Rear Electronic Shocks ($110/shock)
+ Rear Air/Hydraulic Spring ($190/spring)
+ Air Compressor Assembly ($680)
= TOTAL: Over $1,200 (and that doesn't even include replacing electronic components that are known to fail such as the height sensors).