Danger
| Risk of death caused by vehicle slipping or toppling off of the lifting platform.
| Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.
| AS00.00-Z-0010-01A
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| Notes on automatic transmission
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| AH27.19-P-0001-01NKB
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| Remove/install
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1.1
| Remove bottom section of soundproofing
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 651
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 651
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 651
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| AR94.30-P-5300EW
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1.2
| Detach lower engine compartment paneling
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 156
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 157
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 271
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 272
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 276
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 278
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 157
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 276
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 278
Transmission 722.9 (except 722.96/995) in model 207 with engine 271
Transmission 722.9 (except 722.96/995) in model 207 with engine 272
Transmission 722.9 (except 722.96/995) in model 207 with engine 273
Transmission 722.9 (except 722.96/995) in model 207 with engine 276
Transmission 722.9 (except 722.96/995) in model 207 with engine 278
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| AR61.20-P-1105EW
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2
| Loosen rack-and-pinion steering from front axle carrier and lower
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Transmission 722.908/996 in model 212
with code 211 (Direct-Steer system)
| AR46.20-P-0600EL
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| Transmission 722.908/996 in model 212
except code 211 (Direct-Steer system)
| AR46.20-P-0600EW
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Support rack-and-pinion steering against falling down.
Otherwise the tie rods may be damaged.
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| Transmission 722.9 (except 722.96/97/995) in model 212Fastening, rack-and-pinion steering to front axle carrier
| *BA46.20-P-1001-01N
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3
| Detach torsion bar from front axle carrier and lower
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Transmission 722.908/996 in model 212
| AR32.20-P-0300EW
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Prop up torsion bar and secure against falling down.
Otherwise the torsion bar linkage may be damaged.
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| Bolt, torsion bar to front axle carrier
| *BA32.20-P-1003-02P
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| Clean
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4
| Thoroughly clean area around oil cooling lines (1r, 1z) at separation points on transmission (6)
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Thoroughly clean the area surrounding the oil cooling lines (1r, 1z).
The hydraulic system can otherwise malfunction or fail completely.
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5.1
| Disconnect oil cooling lines (1r, 1z) at front separating point (8)
| Transmission 722.9 (except 722.908/96/97/995/996) in model 212
Transmission 722.9 (except 722.96/97/995) in model 218
Transmission 722.9 (except 722.96/995) in model 207 with engine 276.9
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Do not kink or bend the oil cooling lines (1r, 1z).
Otherwise leaks and damage may occur.
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| Seal the oil cooling lines (1r, 1z) using a suitable stop plug.
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| Record plug
| *129589009100
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5.2
| Detach oil cooling lines (1r, 1z) at bottom from oil cooler thermostat (9)
| Transmission 722.9 (except 722.96/995) in model 207 with engine 276.8
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| AR27.55-P-1000ELA
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Do not kink or bend the oil cooling lines (1r, 1z).
Otherwise leaks and damage may occur.
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| Seal the oil cooling lines (1r, 1z) using a suitable stop plug.
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| Record plug
| *129589009100
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5.3
| Detach oil cooling lines (1r, 1z) from batch oil cooler (13)
| Transmission 722.908/996 in model 212
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| AR27.10-P-0501-03CW
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Do not kink or bend the oil cooling lines (1r, 1z).
Otherwise leaks and damage may occur.
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| Seal the oil cooling lines (1r, 1z) using a suitable stop plug.
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| Record plug
| *129589009100
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6
| Detach retaining clamps (4) from oil pan (7)
| Screw, oil cooler oil line to oil pan
| *BA27.55-P-1003-01D
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7
| Detach double clamps (12) from oil cooling lines (1r, 1z)
| Transmission 722.908/996 in model 212
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| Bolt, clamp of oil cooler oil line to bracket
| *BA27.55-P-1005-01D
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8
| Detach oil cooling lines (1r, 1z) from A/C compressor bracket
| Transmission 722.9 (except 722.96/995) in model 207 with engine 276.8
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| Bolt, clamp of oil cooler oil line to bracket
| *BA27.55-P-1005-01D
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9
| Remove left bracket between catalytic converter and transmission (6)
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 276
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 276
Transmission 722.9 (except 722.96/995) in model 207 with engine 276
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10
| Remove heat shield
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Transmission 722.9 (except 722.908/96/97/995/996) in model 212
Transmission 722.9 (except 722.96/97/995) in model 218
| AR27.40-P-0700-01EW
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| Transmission 722.9 (except 722.908/96/97/995/996) in model 212
Transmission 722.9 (except 722.96/97/995) in model 218Bolt, heat shield to transmission housing
| *BA27.40-P-1014-01A
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11
| Remove right catalytic converter
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 278
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 278
Transmission 722.9 (except 722.96/995) in model 207 with engine 278
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12
| Remove bolts (11) and pull oil cooling lines (1r, 1z) out of transmission (6)
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Do not kink or bend the oil cooling lines (1r, 1z).
Otherwise leaks and damage may occur.
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| Installation: Replace O-rings.
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| Seal the oil cooling lines (1r, 1z) using a suitable stop plug.
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| Bolt, oil line to transmission housing
| *BA27.55-P-1002-01D
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| Record plug
| *129589009100
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13.1
| Remove oil cooling lines (1r, 1z) to rear
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 156
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 157
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 271
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 272
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 276
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 651
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 157
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 276
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 651
Transmission 722.9 (except 722.96/995) in model 207 with engine 271
Transmission 722.9 (except 722.96/995) in model 207 with engine 272
Transmission 722.9 (except 722.96/995) in model 207 with engine 273
Transmission 722.9 (except 722.96/995) in model 207 with engine 276
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 651
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Do not kink or bend the oil cooling lines (1r, 1z).
Otherwise leaks and damage may occur.
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| Transmission 722.908/996 in model 212
First, remove the left oil cooling line (1z) and then the right oil cooling line (1r).
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13.2
| Remove right oil cooling line (1r) to the front
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 278
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 278
Transmission 722.9 (except 722.96/995) in model 207 with engine 278
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Do not kink or bend oil cooling line (1r).
Otherwise leaks and damage may occur.
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14
| Remove left oil cooling line (1z) to the rear
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 278
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 278
Transmission 722.9 (except 722.96/995) in model 207 with engine 278
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Do not kink or bend oil cooling line (1z).
Otherwise leaks and damage may occur.
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15
| Detach double clamp (2)
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16
| Detach oil cooling line (2z) from radiator (5), pull out and remove
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| AR27.10-P-0501-03CW
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Do not kink or bend oil cooling line (2z).
Otherwise leaks and damage may occur.
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| Seal the oil cooling line (2z) using a suitable stop plug.
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| Record plug
| *129589009100
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17
| Remove radiator grille
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Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
as of model year 2014
with code 772 (AMG styling package - front spoiler, side skirts and rear apron)
with code 954 (Avantgarde)
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
as of model year 2014
with code 772 (AMG styling package - front spoiler, side skirts and rear apron)
with code 954 (Avantgarde)
| AR88.40-P-4001EWN
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| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
as of model year 2014
except code 772 (AMG styling package - front spoiler, side skirts and rear apron)
except code 954 (Avantgarde)
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
as of model year 2014
except code 772 (AMG styling package - front spoiler, side skirts and rear apron)
except code 954 (Avantgarde)
| AR88.40-P-4001EWM
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| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
up to model year 2014
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
up to model year 2014
| AR88.40-P-4001EW
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| Transmission 722.9 (except 722.96/995) in model 207 with engine 273
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
| AR88.40-P-4001EC
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18.1
| Detach oil cooling line (2r) from radiator (5), pull out and remove
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 272
Transmission 722.9 (except 722.96/995) in model 207 with engine 272
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| AR27.10-P-0501-03CW
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Do not kink or bend the oil cooling line (2r).
Otherwise leaks and damage may occur.
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| Seal the oil cooling line (2r) using a suitable stop plug.
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| Record plug
| *129589009100
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18.2
| Detach oil cooling line (3r) from oil cooler (9) and pull out
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 273
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
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| AR27.10-P-0501-03CW
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Do not kink or bend oil cooling line (3r).
Otherwise leaks and damage may occur.
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| Seal the oil cooling lines (3r) using a suitable stop plug.
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| Record plug
| *129589009100
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19.1
| Unclip center air duct segment at top on cooler (5)
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
Transmission 722.9 (except 722.96/995) in model 207 with engine 273
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19.2
| Remove charge air cooler
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
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| AR09.41-P-6817CW
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20
| Remove oil cooling line (3r)
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 273
Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 273
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
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Do not kink or bend oil cooling line (3r).
Otherwise leaks and damage may occur.
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21
| Remove middle reinforcement at the front
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Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
| AR62.30-P-1570EW
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| Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
| AR62.30-P-1570EL
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22
| Remove right engine intake air duct
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
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23
| Unclip air duct segment from fan unit
| Transmission 722.9 (except 722.96/97/995) in model 212 with engine 642
Transmission 722.9 (except 722.96/97/995) in model 218 with engine 642
Transmission 722.9 (except 722.96/995) in model 207 with engine 642
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24
| Detach intermediate oil cooling line (3) from oil cooler (9) and pull out
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| AR27.10-P-0501-03CW
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Do not kink or bend intermediate oil cooling line (3).
Otherwise leaks and damage may occur.
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| Seal the intermediate oil cooling line (3) using a suitable stop plug.
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| Record plug
| *129589009100
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25
| Disconnect intermediate oil cooling line (3) from radiator (5) and pull out
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Do not kink or bend intermediate oil cooling line (3).
Otherwise leaks and damage may occur.
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| Seal the intermediate oil cooling line (3) using a suitable stop plug.
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| Record plug
| *129589009100
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26
| Unclip center cooling duct from radiator (5)
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27
| Remove intermediate oil cooling line (3)
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Do not kink or bend intermediate oil cooling line (3).
Otherwise leaks and damage may occur.
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28
| Install in the reverse order
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| Check
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29
| Check and correct transmission oil level
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| AR27.00-P-0270W
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Warning
| 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.
| Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
| AS00.00-Z-0005-01A
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30
| Perform engine test run and check transmission (6) for leaktightness and proper operation
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