*Compatibility Chart
1, You can distinguish specific model of an automobile by VIN(Vehicle Identification Number).

2, VIN(Vehicle Identification Number) consists of total 17 English letters and arabic digits.

3, VIN does not include the letters I (i), O (o), and Q (q) (to avoid confusion with numerals 1 and 0).

Mercedes E-Class W212
E250 Avantgarde Sedan 4-Door 2.0L 2014-2015
E250 Bluetec 4Matic Sedan 4-Door 2.1L 2014-2015
E250 Bluetec Sedan 4-Door 2.1L 2014-2015
E350 4Matic Sedan 4-Door 3.5L 2010-2015
E350 Base Sedan 4-Door 3.5L 2010-2015
E350 Bluetec Sedan 4-Door 3.0L 2011-2013
E350 Elegance Sedan 4-Door 3.5L 2010-2011
E350 Sport Sedan 4-Door 3.5L 2010
E400 4Matic Sedan 4-Door 3.0L 2015
E400 Base Sedan 4-Door 3.0L 2015
E400 Hybrid Sedan 4-Door 3.5L 2013-2015
E400 Sport Sedan 4-Door 3.0L 2014-2015
E550 4Matic Sedan 4-Door 4.6L 2012-2014
E550 4Matic Sedan 4-Door 5.5L 2010-2011
E550 Base Sedan 4-Door 5.5L 2010-2011

E63 AMG 4Matic Sedan 4-Door 5.5L 2014
E63 AMG Base Sedan 4-Door 5.5L 2012-2014
E63 AMG Base Sedan 4-Door 6.2L 2010-2011
E63 AMG Base Sedan 4-Door 6.3L 2010-2011
E63 AMG S 4Matic Sedan 4-Door 5.5L 2014-2015

Mercedes CLS-Class W218
CLS400 4Matic Sedan 4-Door 3.0L 2015-2016
CLS400 Base Sedan 4-Door 3.0L 2015-2016
CLS400 Base Sedan 4-Door 3.5L 2015-2016
CLS550 4Matic Sedan 4-Door 4.6L 2012-2016
CLS550 Base Sedan 4-Door 4.6L 2012-2016
CLS63 AMG 4Matic Sedan 4-Door 5.5L 2014
CLS63 AMG Base Sedan 4-Door 5.5L 2012-2014
CLS63 AMG Base Wagon 4-Door 5.5L 2014
CLS63 AMG S 4Matic Sedan 4-Door 5.5L 2014-2016

*Air Suspension Structure:

10  A212 320 01 04  Compressor Unit
10  A212 320 04 04  Compressor Unit
20  A221 328 00 65  Connection Pipe Socket
30  A212 320 11 43  Bracket
40  A000 992 92 10  Bushing
50  A212 326 00 81  Rubber Mount
60  N 304017 008018  Hexagon Head Bolt
65  N 000125 008445  Washer
80  A111 990 36 40  Washer
90  A211 327 04 30  Rubber Bumper
100  A220 993 03 01  Spring
110  A211 327 05 30  Rubber Bumper
120  A000 992 22 50  Spacer Tube
135  A212 320 00 90  Bracket
140  A211 327 00 90  Grommet
145  N 000000 003477  Nut
150  A212 997 02 52  Suction Hose
160  A140 995 01 05  Spring Hose Clamp
170  A000 995 96 77  Line Holder
180  A212 320 01 69  Air Filter
190  A211 327 00 11  Retaining Collar
210  A212 997 07 52  Suction Hose
230  A000 476 04 40  Clamp
250  A212 328 02 86  Cover
260  A201 990 00 50  Plastic Nut
300  A218 320 00 15  Pressure Accumulator
310  A000 327 03 69  Connector
400  A212 320 06 58  Valve Unit
405  A212 320 03 58  Valve Block
410  A000 327 00 69  Connector
900  A052 545 38 26  Plug Housing
905  A168 545 36 28  Pin Bushing Housing
910  A046 545 89 28  Plug

*Generation & Evolution:

Mercedes-Benz E-Class
W124 First generation (1993-1995)
W210 Second generation (1996-2002)
W211 Third generation (2003-2009)
W212 Fourth generation (2009-2016)
W213 Fifth generation (2016-present)

Mercedes-Benz CLS-Class
W219 First generation (2004-2010)
W218 Second generation (2010-2018)

C218 4-Door Sedan/Saloon
X218 5-Door Estate/Wagon With Shooting Brake

C257 Third generation (2018-present)

*Platform Drive Layout:

Base Model-Rear Wheel Drive Layout

4Matic Model-Four Wheel Drive Layout

*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.

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.Raise the vehicle to locate the air suspension compressor assembly under the rear left side of the vehicle.(picture 1)

2.Remove the four(4)bolts holding the compressor cover to the vehicle.(picture 2,3,4,5)

3.Remove the cover to access the compressor assembly.(picture 6)

4.Remove the air line from the compressor assembly.(picture 7,8)

5.Locate and disconnect the two(2)electrical connectors from the compressor assembly.(picture 9,10)

6.Locate and disconnect the intake hose from the compressor assembly.(picture 11,12)

7.Remove the three(3)mounting nuts and hardware holding the compressor assembly to the vehicle.(picture 13,14,15,16)

8.Remove the compressor assembly from the vehicle.(picture 17,18)

*Air Suspension Compressor Removal
1.Place the compressor assembly on a work bench or other adequate work surface.
2.Remove the three(3)bolts holding the compressor to the mounting bracket.(picture 19)

3.Unclip and remove the wiring harness from the compressor bracket.(picture 20,21)

4.Remove the compressor from the mounting bracket.(picture 22)

*Air Suspension Compressor Installation
1.Install the new compressor into the mounting bracket in the reverse order of removal.

*Warning & Notice:

1.When the air compressor being replaced, the matching relay must be replaced according to the corresponding vehicle. If there is something wrong with the relay which leads the compressor to continuous operation without any break, it will burn out the electric motor or other plastic part.

2.When the air compressor being installed, the critical parts such as rubber shock pad and damping spring must be fully fixed on the stand without short installation or missing installation (The air compressor is unequipped with parts). With the anti-vibration parts of short installation or missing installation, a loud noisy instance will happen when the air compressor is working for the sake of resonance.

3.Distribution valve, shock absorber, air tank and tube connector must be checked after air compressor installed to ensure air-tightness. The lifespan of the air compressor will be shortened if the leakage exists.

4.Increased noises while the compressor is running may be caused by a non-functioning compressor mounting. Change the rubbers and springs of the mounting in any case.

5.A porous intake hose often is the cause for a breakdown of the compressor. Change the intake hose and preferably also the filter and noise absorber, because we do not want the compressor to breakdown because of these.

6.Change the relays before installing the compressor even if it seems to still work. This is also a specification by the car manufacturer. Be sure to change the right relays. Relays look similar, that is why there is a risk to change the wrong relays.

7.Be sure to check whether the system is leakproof after repairing. The easiest way to do this is to park the vehicle. Wait for the system to automatically re-adjust if your car has this feature. Then measure the heights from the ground to the lower edge of the fender as exactly as possible and take notes. On the day after measure these heights again and compare them with the ones before. Even a small difference will lead to a damaged compressor and damaged valves in the long run.

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*OEM Part Number:

2123200104,2123200404,212320040480