See workshop manual. exhaust g..

Name Ext. inf. A* Use of Part number A
exhaust gas treatment system
for vehicles with selective
catalytic reduction (scr)
see workshop manual
diesel eng.
diesel eng.
1 no replacement part
2 reduction agent tank
1 7P6 131 878   -
2 reduction agent tank
1 7P6 131 878 B  -
3 end cap
1 3C0 131 980   -
4 o-ring
1 WHT 004 793   -
5 heater element repair kit
mating connector
1 7P6 198 970   -
6 lock set heater element
1 7N0 198 975   -
7 ventilation union
1 2E0 201 485   -
8 breather line
included in position:
9 delivery module for
urea solution adblue
1 2E0 919 050 S  -
9 repair kit for supply
module reduction agent
1 3C0 298 972   -
10 gasket set
1 2E0 919 050 T  1
11 cable tie with fixing
tab
1 2E0 971 350 M  -
12 evaluation unit for reduction
agent reserve
1 3C0 906 651   1
13 control unit for reduction
agent metering system
1 7N0 941 329   -
14 not for this model
15 not for this model
16 retaining plate
1 7P6 131 978 B  -
17 hexagon collar nut
5 N  106 092 03  2
18 supply line for reduction
agent
1 7P6 131 983 C  -
19 flat contact housing with
contact locking mechanism
matching contact housing:
1 1J0 973 702   3
20 not for this model
21 bracket for connector housing
1 7P6 131 713 B  -
22 not for this model
23 not for this model
24 injector for reduction
agent
see illustration, item:
25 supply line for reduction
agent
1 7P6 131 984 C  -
26 bracket
1 7P6 131 713 C  -
27 flat connector housing with
contact locking mechanism
4 1J0 973 802   1
28 urea solution adblue
1 G  052 910 A2  6
(28) urea solution adblue
use if required:
1
1
G  052 910 M3  -
(28) urea solution adblue
use only in conjunction with:
X G  052 910 A4  6
(28) urea solution adblue
1 G  052 910 M9  -
(28) filling hose for
adblue urea solution
1 000 012 499   -
* In the column 'A' indicates the number that is used in the selected vehicle.
To find out where to buy the item or equivalent, click on the part number.