Remove/install coolant pump

AR20.10-P-1271B

Remove/install coolant pump

3.11.09

16.12.03

Value changed from 10 Nm to 9 Nm

Value in BA20.10-P-1002-01M modified on engine 112.910/911/912/913/914/915/

916/917/920/921/922/923/940/941/942/
943/944/945/946/947/949/953/954/
955/960/961/970/972/973/975

*BA20.10-P-1002-01M

 

Remove/install

Danger!

Risk of death caused by vehicle slipping or toppling off the lifting platform.

Align vehicle between columns of lifting platform and position four support plates at the lifting platform support points specified by vehicle manufacturer.

AS00.00-Z-0010-01A

1

Lift/jack up vehicle

Models 129, 170, 202, 208, 210, 220

Model 163

AR00.60-P-1000GH

Model 171

AR00.60-P-1000V

Model 203, 209

AR00.60-P-1000P

Model 463

AR00.60-P-1000G

 Danger!

Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof

Keep body parts and limbs well clear of moving parts.

AS00.00-Z-0011-01A

2

Open engine hood

Model 129

Model 163.154 /172 up to VIN A145272

Model 163.154 /172 up to VIN X708318

AR88.40-P-1000GH

Model 163.154 /172 from VIN A145273

Model 163.154 /172 from VIN X708319

Model 163.157/ 174/ 175

AR88.40-P-1000GI

Model 170

AR88.40-P-1000G

Model 171.4

AR88.40-P-1000V

Model 202

AR88.40-P-1000E

Model 203

AR88.40-P-1000P

Model 208 / 210

AR88.40-P-1000F

Model 209

AR88.40-P-1000Q

Model 220

AR88.40-P-1000M

Model 463

AR88.40-P-1000GG

3.1

Unclip cover on front side of engine

 Only model 220.

4.1

Remove engine cover or air filter

 All except models 170.466, 171.473, 203.065 /265, 203.076 /276, 209.376 /476 from 24.4.04.

5.1

Partially remove air filter housing

Engine 112.960 in model 170.466

Engine 112.961 in model 203.065/ 265

AR09.10-P-1150SVK

Engine 113.987 in model 209.376 /476 as of 24.4.04

Engine 113.988 in model 203.076 /276

Engine 113.989 in model 171.473

AR09.10-P-1150AC

6.1

Remove viscous fan (1)

All except models 163.174 /175, 170, 171.473, 203, 208.365 /465, 209, 220

AR20.40-P-5660C

 Right-hand thread!

7.1

Remove fan shroud (3)

 On vehicles fitted with suction fan, separate the plug connection of the suction fan before removing the fan shroud (3).

Model 171.473 with engine 113.989

AR20.40-P-6800VT

Model 463 with engine 112.945, 113.962 /982

AR20.40-P-6800V

Model 220 with engine 112, 113

AR20.40-P-6800AB

8.1

Remove electric fan

Model 163 with engines 113.965/ 981

AR20.40-P-5000GH

Model 170 with engine 112.947 /960

AR20.40-P-5000SV

Model 171.473 with engine 113.989

AR20.40-P-5000V

Model 203.076 /276

AR20.40-P-5000AC

Model 203 with engines 112.912 /916 /946 /953 /961

Model 209 with engines 112.912 /955, 113.968 /987.

AR20.40-P-5000PV

Model 208.365 / 465

Danger!

Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by swallowing coolant.

Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.

Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

9

Drain coolant at radiator

 Model 163: For draining coolant, detach bottom coolant line at radiator or at coolant pump.

 Installation: On model 163 replace radiator connection of hose clamps to coolant hose, otherwise this can cause a damage to the bolt/thread.

 Hose clamp

*BA20.20-P-1004-01A

 Collect coolant

 Disposal of coolants: observe legal regulations or local wastewater requirements! Refer to Environmental Protection Catalog issued by MBVD/PWU for locations in Germany.

Model 129, 163, 202, 208, 210, 220 with engine 112

Model 220, 210, 208, 202, 163, 129 with engine 113

Model 463.206 /240 /241 /247 /248 /249 /254 with engine 113.962

Model 463.209 /232 /233 /244 /245 /250 with engine 112.945.

Model 463.243 /246 with engine 113.982

AR20.00-P-1142HA

Model 170.465 with engine 112.947

Model 170.466 with engine 112.960

AR20.00-P-1142SV

Model 171.473 with engine 113.989

Model 203.061 /261 with engine 112.912

Model 203.064 /264 /764 with engine 112.946

Model 203.065 /265 with engine 112.961

Model 203.076 /276 with engine 113.988

Model 203.081 /281 with engine 112.916

Model 203.084 /284 with engine 112.953

Model 209.361 /461 with engine 112.912

Model 209.365 /465 with engine 112.955

Model 209.375 /475 with engine 113.968

Model 209.376 /476 with engine 113.987

AR20.00-P-1142PV

10

Remove poly-V belt (2)

 Lock tensioner pulley with drift or pin (diameter 5 mm).

Model 463.209 /232 /233 /244 /245 /250 with engine 112.945.

Model 463.206 /240 /241 /247 /248 /249 /254 with engine 113.962

Model 463.243 /246 with engine 113.982

Model 129, 163 with engine 112

Model 129, 202, 208.370 /470, 210 with engine 113

Model 163 with engine 113 except 113.965 /981

AR13.22-P-1202B

Model 202, 208, 210, 220 with engine 112

Model 220 with engine 113 except 220.074 /174

Model 163.174 with engine 113.981

Model 163.175 with engine 113.965

Model 208.374 /474 with engine 113

AR13.22-P-1202BA

Model 220.074 / 174

AR13.22-P-1202R

Model 170.465 with engine 112.947

AR13.22-P-1202SV

Model 170.466 with engine 112.960

Model 203.065 /265 with engine 112.961

AR13.22-P-1202SVK

Model 171.473 with engine 113.989

Model 203.061 /261 with engine 112.912

Model 203.064 /264 /764 with engine 112.946

Model 203.076 /276 with engine 113.988

Model 203.081 /281 with engine 112.916

Model 203.084 /284 with engine 112.953

Model 209.361 /461 with engine 112.912

Model 209.365 /465 with engine 112.955

Model 209.375 /475 with engine 113.968

Model 209.376 /476 with engine 113.987

AR13.22-P-1202PV

11.1

Remove shock absorber (10)

Model 210, 203, 209, 202, 170, 129 with manual transmission

12

Remove poly-V-belt tensioning device

Model 463.209 /232 /233 /244 /245 /250 with engine 112.945.

Model 463.206 /240 /241 /247 /248 /249 /254 with engine 113.962

Model 463.243 /246 with engine 113.982

Model 129, 163 with engine 112

Model 129, 202, 208, 210 with engine 113

Model 163 with engine 113 except 113.965 /981

AR13.25-P-3200B

Model 163.174 with engine 113.981

Model 163.175 with engine 113.965

Model 170, 202, 203, 208, 209, 210, 220 with engine 112

Model 171.473 with engine 113.989

Model 203, 209, 220 with engine 113

AR13.25-P-3200BA

13

Disconnect coolant hose (4, 5)

 Check condition of coolant hoses and hose clamps, replace if necessary.

14.1

Disconnect coolant hose (6) at oil-water heat exchanger

 All except model 171.473.

 Check condition of coolant hose and hose clamp; replace if necessary.

15.1

Remove bolts from oil lines on oil filter

Only model 171.473.

 Bolt of oil line to oil filter housing

*BA18.20-P-1003-01D

16.1

Remove bolts from oil lines brackets and lay oil lines with brackets to one side

 Only model 171.473.

 Bolt, oil line bracket

*BA18.20-P-1004-01D

17.1

Remove bracket with switchover valve and pressure sensor and place to one side

 Only model 171.473.

18

Take off belt pulley of coolant pump (7)

 Engine 112:

 Belt pulley on coolant pump

*BA20.10-P-1002-01M

 Engine 113, except 113.987 /988 /989 /991: 

 Belt pulley on coolant pump

*BA20.10-P-1002-01C

 Engines 113.987 /988 /989 /991: 

 Belt pulley on coolant pump

*BA20.10-P-1002-01L

 Engine 113.989:

 Counterholder

*113589004000

19

Remove coolant pump (8)

 Installation: Replace gasket of coolant pump (9).

 Engine 112:

 Self-tapping screw for coolant pump to timing case

*BA20.10-P-1001-01M

 Engine 113 except 113.987 /988 /989 /991: 

 Self-tapping screw for coolant pump to timing case

*BA20.10-P-1001-01C

 Engines 113.987 /988 /989 /991: 

 Bolt, coolant pump to timing case

*BA20.10-P-1001-01L

 Engine 112, 113: 

 Alternator screw

*BA15.40-P-1003-01A

 External torx set

*001589760900

20

Install in the reverse order

21

Inspecting cooling system for leaks

 All except models 170, 171.473, 203, 209, 220.074 /174

AR20.00-P-1010HA

Model 170, 171.473, 203, 209

AR20.00-P-1010P

Model 220.074 / 174

AR20.00-P-1010RVK

Number

Designation

Engine 112.91/92/94/
953/954/955/
96/97 except 112.976,
engine 113.94/96/98

Engine 113.991
in model 215, 220

BA15.40-P-1003-01A

Alternator bolt

Nm

42

-

Number

Designation

Engine 113.989

BA18.20-P-1003-01D

Bolt, oil line to oil filter housing

Nm

9

BA18.20-P-1004-01D

Bolt for oil line bracket

Nm

-

Number

Designation

Engine 112.910/911/912/913/914/915/
916/917/920/
921/922/923/
940/941/942/
943/944/945/
946/947/949/
953/954/955/
960/961/970/
972/973/975

BA20.10-P-1001-01M

Self-tapping bolt, connecting coolant pump to timing case

Thread not pre-tapped

M6

Nm

14

Thread not pre-tapped

M8

Nm

35

Thread pre-tapped

M6

Nm

10

Thread pre-tapped

M8

Nm

25

BA20.10-P-1002-01M

Belt pulley on coolant pump

Nm

9

Number

Designation

Engine 113.940/941/
942/943/944/
945/946/948/
960/961/962/
963/965/966/
967/968/969/
980/981/982/
984/986/992
993/995

BA20.10-P-1001-01C

Self-tapping bolt, connecting coolant pump to timing case

Thread not pre-tapped

M6

Nm

14

Thread not pre-tapped

M8

Nm

35

Thread pre-tapped

M6

Nm

10

Thread pre-tapped

M8

Nm

25

BA20.10-P-1002-01C

Belt pulley on coolant pump

Nm

10

Number

Designation

Engine 113.987/988/
990/991

Engine
113.989

BA20.10-P-1001-01L

Bolt, coolant pump to timing case

M6

Nm

14

14

M8

Nm

20

20

BA20.10-P-1002-01L

Belt pulley on coolant pump

Nm

9

9

Number

Designation

Engine
112.942/
970,
113.942/
965/981

BA20.20-P-1004-01A

Hose clamp

Nm

3