Front Pair Air Suspension Shocks For Mercedes W166 ML350 ML550 X166 GL450 GL550

Air Suspension Structure

10 A166 323 10 00 Shock Absorber

10 A166 323 24 00 Shock Absorber

10 A166 323 29 00 Shock Absorber

15 A166 320 03 26 Ts Spring Plate F Strut

15 A166 320 05 26 Ts Spring Plate F Strut

20 A166 323 00 98 Protective Tube

30 A166 327 00 21 Bearing Cap

40 A166 321 00 06 Additional Spring

50 A166 323 01 67 Spring Plate

60 A166 326 04 67 Spring Plate

70 A166 321 11 04 Helical Spring

70 A166 321 12 04 Helical Spring

70 A166 321 13 04 Helical Spring

70 A166 321 14 04 Helical Spring

70 A166 321 15 04 Helical Spring

70 A166 321 16 04 Helical Spring

70 A166 321 17 04 Helical Spring

70 A166 321 18 04 Helical Spring

150 A166 320 13 13 Air Suspension Strut

150 A166 320 14 13 Air Suspension Strut

150 A166 320 51 66 Air Suspension Strut

150 A166 320 52 66 Air Suspension Strut

150 A166 320 53 66 Air Suspension Strut

150 A166 320 54 66 Air Suspension Strut

150 A166 320 67 13 Air Suspension Strut

150 A166 320 68 13 Air Suspension Strut

150 A166 320 69 13 Air Suspension Strut

150 A166 320 70 13 Air Suspension Strut

150 A166 320 71 13 Air Suspension Strut

150 A166 320 72 13 Air Suspension Strut

160 A000 327 03 69 Connector

170 A166 540 00 05 Electrical Wiring Harness

190 A001 545 96 40 Bracket

200 A004 990 73 50 Nut-A-Washer Assembly

210 N910123 010000 Hexagon Nut

220 A000 990 94 23 Screw, Special Shape

220 A003 990 76 05 Screw W Hexagon Socket

230 N000000 005734 Hexagon Nut

230 N000000 007498 Nut

900 A006 540 42 81 Connector Housing

Item Specifications

Key Words: Mercedes GL-Class X166 GL350 GL450 GL500 GL550 GL63 AMG 2013-2015 M-Class W166 ML250 ML350 ML400 ML500 ML550 ML63 AMG 2012-2015

*Removal Guideline

Caution: Damage to the vehicle and air suspension system can be incurred if work is carried out in a manner other than specified in the instructions or in a different sequence.

1.To avoid the possibility of short circuits while working with electric components consult your owner's manual on how to disconnect your battery.

2.Consult your vehicle owner's manual, service manual, or car dealer for the correct jacking points on your vehicle and for additional care, safety and maintenance instructions. Under no circumstances should any work be completed underneath the vehicle if it is not adequately supported, as serious injuries and death can occur.

1.Set steering to straight ahead.

2.Raise vehicle.

3.Remove the applicable front wheel.

4.Open the hood.

5.Remove the rubber trim as depicted.(picture 1,2)

6.Remove the hvac air intake cover.(picture 3)

7.Unclip the hvac air box.(picture 4)

8.Remove the hvac air box.(picture 5)

9.Disconnect the air line from the strut assembly.(picture 6)

10.Remove the three top strut mount nuts.(picture 7)

11.Disconnect the damping coil.(picture 8)

12.Disconnect the wheel speed sensor.(picture 9)

14.Remove the wire routing harness from the strut body.(picture 10)

15.Loosen and remove the axle nut and separate the axle from the wheel hub.(picture 11,12)

16.Remove the sway bar end link nut.(picture 13)

17.Remove the control arm nut and separate the upper control arm from the spindle assembly.(picture 14)

18.Pull down on the sway bar to separate the sway bar end link from the spindle assembly.(picture 15)

19.Remove the bottom strut mounting bolt.(picture 16)

20.Remove the axle from the wheel hub.(picture 17)

21.Carefully remove the strut assembly.(picture 18)

22.Removal complete.

*Installation Guideline

Installation is in reverse order of air spring removal.

Note

Please double confirm the compatibility as well as the OEM number before purchasing.

Instruction is not included. Professional installation is recommended.

Frequently Asked Questions

How to prevent the damage of air springs/How to extend the service life of air springs/struts etc.?

An air strut with separable air springs

If your vehicle offers a separable air suspension (Audi Allroad A6 C5, Mercedes-Benz W164, BMW X5, etc.), you should regularly (about once a week) lift the car to the maximum position, and remove dirt with a high-pressure cleaner (keep the cleaner at a distance to the air spring about 30 cm/12 inches, otherwise water pressure can damage the air spring). The highest position may vary depending on your model and regulation options. Therefore, please test this by trying the different modes available to you (Sport, comfort, dynamic, off-road) and choose the one that sets your vehicle to the highest position. The dirt will most likely be found under the fold of the pneumatic chambers. If you find a frozen layer of bitumen on the piston guide (the part of a strut on which the air spring is installed), it is recommended to clean it as well. Whenever possible, avoid riding on fresh asphalt, as fresh bitumen mixed with sand immediately results in a build-up of abrasives on the piston and in turn contributes to accelerated wear and tear of the air spring.

A complete air suspension shock

Many cars such as Mercedes W220 or W211 are set up with a complete air strut - shock absorber and air spring visually form a complete spare part. In many cases, you can easily recognize these by the metal cups with which the air spring is tightly mounted. To best avoid any damage, we highly recommend to regularly check the condition of the dust protection seals of the air strut.

What is the difference between an air spring and an air strut?

The air spring is a part of the air strut. Some vehicles (e.g. Mercedes ML) allow you to change the air spring separately. At our online shop you have the opportunity to buy either the whole air strut or only the air spring. For some type of vehicles it is not possible to change the air spring separately. In this case the whole air strut should be replaced.

Which side of my car is the Right and Left?

The right and left sides of an automobile are determined as if sitting in the car facing forward. Thus, the left side is on the left when sitting in the car facing forward, and the right side is on the right. For American cars, the driver’s side is on the left, and the passenger sits to the right of the driver. For cars in Japan, Britain, Ireland, the Bahamas and some other former British colonies -- where they drive on the left side of the road -- the passenger sits on the left side, and the driver (along with all the driving controls) is on the right.

What does 4MATIC mean?

4MATIC is the marketing name of a four-wheel drive system developed by Mercedes-Benz. It is designed to increase traction in slippery conditions.

What does AIRMATIC mean?

AIRMATIC is a Mercedes-Benz trademark for vehicles with air suspension systems. Compared with a conventional steel suspension, the AIRMATIC air suspension provides advantages in terms of handling safety and ride comfort. The AIRMATIC air suspension automatically adjusts the damping force on each wheel according to the current state of the road.

What does ABC mean?

ABC (Active Body Control) is a registered Mercedes-Benz trademark. It is a high-quality suspension system, which automatically adapts the suspension setting to the respective driving situation. There is also a crosswind stabilisation integrated in ABC systems.

How can I see if my vehicle is equipped with AIRMATIC or ABC?

You can check which suspension you have by opening the bonnet of your car and examining the top of the shock absorber.

Includes

Pair for Front Left & Right Air Suspension Shock Struts