f

n M6
If the part number of the installed
NOx sensor upstream of the SCR
catalytic converter (2) is not the
same as the part number
according to XENTRY Parts
Information,
↓
Replace NOx sensor upstream of
SCR catalytic converter (2) and
proceed with operation step 7.
Remove/install NOx sensor
upstream of SCR catalytic
converter
Model 906 with engine 642.896,
651 with code XM0 (Facelift),
model 906 with engine 642.898

BA00.10-Z-1002-01KOA

AR14.40-D-2059M

p
Ensure that electric line of NOx
sensor upstream of SCR catalytic
converter (2) is routed correctly.
Otherwise, malfunction or damage
can occur.
i
Do not yet perform commissioning
of the NOx sensor upstream of the
SCR catalytic converter (2).

V-SC-2022120013

5

SM49.20-D-0034SG

7

Check NOx sensors (code: NC31016II, acc. no.: 07 972 04)

Carefully bend heat shield (3) back If NOx sensor control unit (2.1)
and attach at crossmember.
upstream of SCR catalytic
converter is installed at
crossmember above exhaust
system.
i
For this, attach spring lock nut
(3.1).

8

9

6

Carefully bend heat shield (4) to
one side in area of NOx sensor
control unit (5.1) downstream of
SCR catalytic converter.
Remove NOx sensor control unit
(5.1) from longitudinal member.

i
For this, remove nuts (5.2).

V-SC-2022120013

Check NOx sensors (code: NC31016II, acc. no.: 07 972 04)

g
10

SM49.20-D-0034SG

Check
Check part number of NOx sensor i
downstream of SCR catalytic
For this, compare the part number
converter (5).
on the information label (5.3) of the
NOx sensor control unit (5.1) with
the part number shown in XENTRY
Parts Information ("Main groups"
49).
i
To compare the NOx sensor
installed downstream of the SCR
catalytic converter (5), the vehicle
must be selected using the
FIN/VIN in XENTRY Parts
Information.
If the part number of the installed
NOx sensor downstream of the
SCR catalytic converter (5) is the
same as the part number
according to XENTRY Parts
Information,
↓
Attach NOx sensor control unit
(5.1) and proceed with operation
step 11.
BA00.10-Z-1002-01KOA
n M6
If the part number of the installed
NOx sensor downstream of the
SCR catalytic converter (5) is not
the same as the part number
according to XENTRY Parts
Information,
↓
Replace NOx sensor downstream
of SCR catalytic converter (5) and
proceed with operation step 11.
Remove/install NOx sensor
AR14.40-D-2060M
downstream of SCR catalytic
converter
Engine 642 in model 906 with code
XM0 (Facelift), engine 642.898 in
model 906 except code XM0
(Facelift), engine 651 in model 906
with code XM0 (Facelift)

f

i
Do not yet perform commissioning
of the NOx sensor downstream of
the SCR catalytic converter (5).
d
11

Install
Carefully bend back heat shield
(4).

V-SC-2022120013

7

SM49.20-D-0034SG

12

Check NOx sensors (code: NC31016II, acc. no.: 07 972 04)

Lower vehicle.

If NOx sensors upstream or
downstream of SCR catalytic
converter (2, 5) were replaced.

Commissioning of NOx sensors
13

Connect diagnostic system.

If NOx sensors upstream or
downstream of SCR catalytic
converter (2, 5) were replaced.

a

AD00.00-D-2000-04SD

i
Always use the latest XENTRY
Diagnosis software release, with all
available add-ons.
i
It is absolutely essential to
precisely follow the operation steps
as described in the vehicle
diagnosis system.

14

Connect charging equipment.

A

000 588 00 81 00 Charger

If NOx sensors upstream or
downstream of SCR catalytic
converter (2, 5) were replaced.
WS54.00-P-0037B
p
During the entire work procedure a
sufficient and stable voltage supply
must be provided for the vehicle's
on-board electrical system.
Otherwise any undervoltage that
occurs may damage the control
units.
i
Follow the operating instructions
for the charger.
i
Use the charger to ensure that an
adequate power supply (min. 12.5
V) is provided for the on-board
electrical system battery.

15

a

Perform commissioning of
replaced NOx sensor upstream or
downstream of SCR catalytic
converter (2, 5).

If NOx sensor upstream or
downstream of SCR catalytic
converter (2, 5) was replaced.
AD00.00-D-2000-04SD
i
It is absolutely essential to
precisely follow the operation steps
as described in the vehicle
diagnosis system.
i
Do not yet remove vehicle
diagnosis system.

8

V-SC-2022120013

Check NOx sensors (code: NC31016II, acc. no.: 07 972 04)

16

Remove charger from vehicle.

A

000 588 00 81 00 Charger

If NOx sensors upstream or
downstream of SCR catalytic
converter (2, 5) were replaced.

g

Check

aWarning

Risk of accident from vehicle
starting off by itself when engine
running. Risk of injury (bruises
and burns) resulting from working
on the engine while it is being
started or when it is running.
Check for leak tightness when
engine is running.

17

SM49.20-D-0034SG

Secure vehicle to prevent it from
starting off by itself. Wear closed
and snug-fitting work clothes. Do
not touch hot or rotating parts.

WS54.00-P-0037B
AS00.00-Z-0005-01A

If NOx sensors upstream or
downstream of SCR catalytic
converter (2, 5) were replaced.
i
Visual inspection only.

d
18

Install

19

Install underfloor paneling (1).

Raise vehicle.

If NOx sensors upstream or
downstream of SCR catalytic
converter (2, 5) were replaced.
MODEL 906 with CODE XM1
(Noise abatement measures)
i
For this, attach nuts (1.1) and
screw in screws (1.2).

20

Lower vehicle.

n Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number
BA00.10-Z-1002-01KOA

Designation
M6

Galvanized
Phosphated

Nm
Nm

8.8
9
9

Nm
Nm

12.9
16
14

10.9
13
12

n Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number
BA00.10-Z-1002-01KOA

Parts ordering note
Part no.
KG 49

KG 49

Designation
M6

Galvanized
Phosphated

Designation
Quantity
NOx sensor upstream of SCR catalytic converter (Determine replacement parts to n. B
match the vehicle identification number (FIN/VIN) using XENTRY Parts Information
system!)
NOx sensor downstream of SCR catalytic converter (Determine replacement parts n. B
to match the vehicle identification number (FIN/VIN) using XENTRY Parts
Information system!)

V-SC-2022120013

9