Remove/install retaining lock for crankshaft/ring gear

AR03.30-P-5000LFB

Remove/install retaining lock for crankshaft/ring gear

23.02.2017

Engine

157, 276, 278 in model 217

Engine

157, 276, 278 in model 222

Shown on engine 278 without code M005 (4MATIC)

01

Retaining lock

1

Screw/bolts

1s

Nuts

2

Cover



Remove

1

Remove center and rear engine compartment paneling

AR61.20-P-1105LF

2.1

Unscrew nuts (1) and pull screw/bolts out of transmission bell housing (1)

Engine 157 in model 217, 222 with transmission 722.9
except code M005 (4MATIC)
Engine 276 in model 222 with transmission 722.9
except code M005 (4MATIC)
Engine 276 in model 222 with transmission 725.0
except code M005 (4MATIC)
Engine 278 in model 217, 222 with transmission 722.9
except code M005 (4MATIC)
Engine 278 in model 217, 222 with transmission 725.0
except code M005 (4MATIC)

 Transmission 722.9 in model 217, 222 with engine 157
except code M005 (4MATIC)
Transmission 722.9 in model 217, 222 with engine 278
except code M005 (4MATIC)
Transmission 722.9 in model 222 with engine 276
except code M005 (4MATIC)Bolt, automatic transmission to engine

*BA27.40-P-1008-01A

 Transmission 725.0 in model 217, 222 with engine 278
except code M005 (4MATIC)
Transmission 725.0 in model 222 with engine 276
except code M005 (4MATIC)Screw/bolt, transmission to engine

*BA27.10-P-1001-04H

2.2

Remove starter

Engine 157, 276, 278 in model 217
with code M005 (4MATIC)
Engine 157, 276, 278 in model 222
with code M005 (4MATIC)

Engine 157, 278 in model 217, 222
with code M005 (4MATIC)

AR15.30-P-7100LF

Engine 276.8 in model 217, 222
with code M005 (4MATIC)

AR15.30-P-7100LFA

 Transmission 725.0 in model 222 with engine 276
with code M005 (4MATIC)
Transmission 725.0 in model 222 with engine 278
with code M005 (4MATIC)Screw/bolt, transmission to engine

*BA27.10-P-1001-04H

 Transmission 722.9 in model 217, 222 with engine 157
with code M005 (4MATIC)
Transmission 722.9 in model 217, 222 with engine 276
with code M005 (4MATIC)
Transmission 722.9 in model 217, 222 with engine 278
with code M005 (4MATIC)Bolt, automatic transmission to engine

*BA27.40-P-1008-01A

3

Remove cover (2) on crankcase

Engine 157, 276, 278 in model 222
except code M005 (4MATIC)
Engine 157, 278 in model 217
except code M005 (4MATIC)

4

Turn engine by hand; check toothing of the ring gear of the clutch plate for wear and damage

 Socket wrench bit

*001589650900

In case of wear and damage to ring gear.



Replace drive plate.

Engine 276.9 in model 222

AR03.30-P-8001LFH

Engine 157, 278 in model 217
Engine 157, 278 in model 222

AR03.30-P-8001LFB

Engine 276.8 in model 217, 222

AR03.30-P-8001LFA

5

Insert retaining lock (01) into the respective access opening

 If required, rotate engine further at center bolt for crankshaft in direction of engine rotation until the  retaining lock (01) snaps into place.

 Retaining lock

*112589034000

6

Remove in reverse order

 Automatic transmission complete

Number

Designation

Transmission 725.0

BA27.10-P-1001-04H

Screw/bolt, transmission to engine

Nm

39

 Housing

Number

Designation

Transmission 722.9

BA27.40-P-1008-01A

Bolt, automatic transmission to engine

M1040

Nm

38

M1045

Nm

38

M1090

Nm

38

M12

Nm

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