Tighten the new clamp (21).

45

Install new spring nut (14) on the
holding bracket of SCR catalytic
converter (4).
i
A 123 994 13 45
40

a

46

Emissions Campaign 2020040004

Install the AdBlue® injection nozzle (17).
i
Position the new profile clamp (16) on the
SCR catalytic converter (4) first.
i
A 000 995 11 33
i
Ensure correct positioning of the Adblue®
injection valve (17). The catch (arrows) of
the Adblue® injection valve must sit in the
groove of the exhaust pipe (4).

47

Install the screw on the new profile clamp
(16) on the AdBlue® injection nozzle (17).
i
Screw: Torque to 5 Nm / 3.7 ft·lb

48

Install the exhaust gas temperature sensor
(12) upstream of the SCR catalytic
converter.
i
Apply nickel anti-seize paste to threads
only. Avoid contact to the sensor.
A 000 989 76 51 (bulk paste; can be
applied to multiple vans)
i
Temperature sensor: Torque to
45 Nm / 33.2 ft·lb

41

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Emissions Campaign 2020040004

Installation of Downstream NOx Sensor

49

Install new NOx sensor control unit
downstream of the SCR catalytic
converter (4).
i
A 000 905 85 11 80 (included in package
A 642 905 20 00 85)
Use new nut fasteners (28):
N 000000 003477
NOx sensor control unit. Torque to:
9 Nm / 6.6 ft·lb

50

Connect the electrical plug connection
(30) and lock the retaining tab (29).
i
Push the gray retaining tab (29) in the
direction of the arrow to lock.

51

Install the new NOx sensor downstream
of the SCR catalytic converter (5) on the
new SCR catalytic converter.
i
NOx sensor downstream of catalytic
converter. Torque to: 60 Nm / 44.3 ft·lb

52

Tie back excess length of the harness (32)
in a loop. Secure harness (32) with cable
tie (31).
i
A 007 997 56 90 (1x)
p
Do not route the harness (32) under
tension.
Otherwise damage could occur.

42

a

53

Emissions Campaign 2020040004

Install the heat shield (25).
i
To do this, place the new clamping
nuts (26) centrally on the pin, as
shown, and slide up to the stop
using a socket wrench.
i
A 000 994 32 11

54

Install the new mounting tab (34) on the
heat shield (25).
i
A 220 546 18 43

55

Clip the harness (32) into the mounting
tab (34).
p
Do not kink the harness (32) and make
sure it is not routed so as to be abraded.
This prevents damage.
p
The harness (32) must not touch heat
shield (25).
This prevents damage.
i
The layout schematic of the harness (32)
has changed on account of the changed
position of the NOx sensor downstream
of the SCR catalytic converter (4).

43

a

56

Emissions Campaign 2020040004

Postion new clamp (15) on the
SCR catalytic converter (4).
i
A 906 995 02 02

57

Install the tailpipe (13) of the
exhaust system.

58

Align tailpipe (13) and tighten the
new clamp (15).
i
Ensure adequate clearance of the
tailpipe to the frame in the area
of the rear decoupling element.
i
Clamp main muffler on endpipe:
Torque to 23 Nm / 17 ft·lb

59

Lift:
Lower the vehicle.
Ramps:
Vehicle may remain on ramps

Execution of the AEM Special Procedure

60

Connect the battery charger to the
vehicle's jump posts as indicated.
(arrows)
p
A sufficient power supply to the
vehicle on-board system must be
ensured throughout the entire work
procedure.
Otherwise any undervoltage that
occurs may damage the control
units.
i
Do not connect the battery charger to
the auxiliary battery in the engine
compartment.
i
Follow the operating instructions for
the battery charger.
i
Use a Mercedes-Benz recommended
battery charger to ensure an
adequate voltage supply (min. 12.5 V)
is provided for the on-board electrical
system battery.

44

a

61

Emissions Campaign 2020040004

Connect the diagnostic system.
i
The diagnostic system remains connected to the vehicle
throughout the work procedure!
Do not disconnect the diagnostic system’s online connection.

62

Switch on the ignition.

63

Start the diagnostic system.

64

Run XENTRY and start special procedure of
customer service measure.
i
To do this, select the following menu items: N3/35 Motor electronics 'CDI60' for combustion engine
'OM642' (CDI) (Code: MH3|MH5|MH7) → Special
procedures → Service measure "Exhaust gas aftertreatment"
i
The process starts automatically after starting the
special procedure. The operation steps must be
performed exactly as per the diagnostic system.

i
A result report is displayed at the end of the
special procedure. Upload this report to
paperless pXD. The report must indicate “OK” for
all items. Otherwise, the procedure must be
repeated. The vehicle can only be returned to the
customer after successfully completing the
special procedure.
i
Parts of the procedure via the diagnostic system
are shown on the following pages.

i
If a fault arises during the special procedure,
repeat the procedure. If the fault persists, create a
PTSS case or XSF-ticket including the following:
•Initial Quick test
•Current Quick test
•Control unit log
•AEM Result Report
•Support Package

45

a

Emissions Campaign 2020040004

First

Second
Third

46

a

Emissions Campaign 2020040004

wait

47

a

Emissions Campaign 2020040004

48

a

Emissions Campaign 2020040004

wait

49

a

Emissions Campaign 2020040004

First

Second

Caution page is for information only, and can be ignored when performing the AEM.
Select 'Continue' to proceed with the AEM Service Measure.

50

a

Emissions Campaign 2020040004

First

Second

Third

51

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Emissions Campaign 2020040004

Make sure it’s unchecked

52

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Emissions Campaign 2020040004

Caution page is for information only, and can be ignored when performing the AEM.
Select 'Continue' to proceed with the AEM Service Measure.

Service Measure
is NOT Complete!

This is NOT the final results page.
Select 'Continue' to proceed with the AEM Service Measure.

53

a

65

Emissions Campaign 2020040004

Complete the information on the
APPROVED EMISSION
MODIFICATION LABEL and attach it to
the hood near the hood lock.
p
The attachment areas must be entirely
free from dust and grease.
Otherwise, adequate adhesion cannot
be ensured.
i
Fill in Emission Modification Program
No., your dealer code, the date of the
repair and mark the components that
have been installed or modified. Use a
black ultra fine point permanent marker.
i
A 000 584 93 13

Failure to comply may result in dealer
debit and/or possible fines.

54

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Emissions Campaign 2020040004

Verify completed
successfully

55

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Emissions Campaign 2020040004

First

Second

Name file:
AEM Results
Third
Fourth

Fifth

56

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Emissions Campaign 2020040004

Final Quick Test

66

Perform a final quick test and upload to paperless pXD.
i
Faults stored in the memorymust be deleted from the
fault memory after completing the work.
i
If faults are current and stored in the updated control
modules they need to be addressed. If technical
hardships occur create a PTSS caVH

The procedure via the diagnostic system is shown on
the following pages.

57

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Emissions Campaign 2020040004

58

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Emissions Campaign 2020040004

wait

59

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Emissions Campaign 2020040004

First

Second

Name file: QT 2
Third
Fourth

60

a

67

Emissions Campaign 2020040004

End the XENTRY session

61

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Emissions Campaign 2020040004

68

Switch off the ignition.

69

'LVFRQQHFWWKHGLDJQRVLVV\VWHP

70

'LVFRQQHFWWKHEDWWHU\FKDUJHU

71

Close the hood.

72

Connect any aftermarket devices that
were connected to the X11/4 diagnostic
socket before.

73

Ramps:
Remove wheel chocks, release parking
brake, and drive the vehicle off the
ramps.
p
Drive the vehicle slowly and at a
constant speed off the ramps.
Otherwise the vehicle may be
damaged.

62

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Emissions Campaign 2020040004

Replacement parts 2020040004
Part No.
A 906 490 36 00 80

Part No.
A 642 905 20 00 85
A 906 995 02 02
A 000 995 11 33
A 000 490 13 41
A 220 546 18 43
A 123 994 13 45
A 000 994 32 11
A 007 997 56 90
A 000 995 90 06
N 000000 003477
A 207 492 00 00
A 000 584 93 13

Designation
SCR catalytic converter

Quantity
1

Designation

Quantity
1
1
1
1
1
1
3
3
1
4
1
1

NOx Sensor package
Pipe Clamp
Profile Clamp
Clamp SCR/DPF
Mounting Tab
Spring Nut
Lock Pin
Cable Tie (with holding clip)
Cable Tie
Nut Fastener
Profile Seal
APPROVED EMISSION
MODIFICATION LABEL

63