Remove/install components for exhaust system

AR49.10-P-7100MTA

Remove/install components for exhaust system

05.09.2018

Engine

133 in model 117, 156, 176

1

Reinforcement brace

2

Clamp

3

Exhaust tailpipe

5

Elastomer bearing

4

Clamp

5

Elastomer bearing

 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

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 

Remove/install

1

Remove bottom engine compartment paneling

AR61.20-P-1105NKB

 Installation: Only install lower engine compartment paneling after the performing an engine test run and leak test.

2

Detach side underfloor paneling and place to one side

3

Mark installation position of the front reinforcement brace (1) and the propeller shaft center support bearing in color on frame floor assembly

Engine 133 in model 117, 156, 176
with code M005 (4MATIC)

 Bolt, propeller shaft intermediate bearing to frame floor assembly

*BA41.40-P-1001-01G

4

Remove reinforcement braces (1)

 Fasten the propeller shaft center support bearing after removal of the front reinforcement brace (1) with screw/bolts on frame floor assembly.

 Bolt, propeller shaft intermediate bearing to frame floor assembly

*BA41.40-P-1001-01G

 Bolt, front reinforcement brace to frame floor assembly

*BA61.10-P-1002-01H

 Bolt, rear reinforcement brace to frame floor assembly

*BA61.10-P-1003-01H

5

Remove clamps (2) on both sides

 Installation: Replace clamps (2).

 Clamp, exhaust pipe to rear muffler

*BA49.10-P-1023-01AL

6

Remove exhaust tailpipe (3)

7

Disconnect electrical connection of the electrical exhaust flap

Engine 133 in model 176

8

Remove clamp (4)

 Installation: Replace clamp (4).

 Clamp, rear exhaust system to front exhaust system

*BA49.10-P-1021-01AL

9

Remove clamp on CAT below and remove intermediate pipe to the front

 Installation: Replace clamp if necessary.

 Clamp, front exhaust system to catalytic converter/gasoline particulate filter

*BA49.10-P-1020-01AL

10

Push exhaust system out of the elastomer bearing (5) and remove exhaust system downwards

 Installation: Apply lubricating paste to elastomer bearings (5).

 Helper required.

Antifriction paste, rubber parts 2.5 kg, DBL 6867.00

*BR00.45-Z-1002-06A



Clean

11

Remove combustion/corrosion residues at connecting points

12

Check from elastomer bearings (5) for damage; replace if necessary.

13

Install in the reverse order



Check

14

Check installation position and unobstructed movement of all components of the exhaust system

 Danger

Risk of accident caused by vehicle starting off on its own when jacked up. Risk of injury caused by rotating parts when working on running engine or drive train.

Ensure that jack stands are in a safe condition. An authorized person must occupy the driver's seat. Wear closed and close-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0008-01A

15

Perform an engine test run and check exhaust system for leaktightness

 Propeller shaft intermediate bearing

Number

Designation

Model 117

Model 156

BA41.40-P-1001-01G

Bolt, propeller shaft intermediate bearing to frame floor assembly

Nm

30

30

 Propeller shaft intermediate bearing

Number

Designation

Model 176

BA41.40-P-1001-01G

Bolt, propeller shaft intermediate bearing to frame floor assembly

Nm

30

 Exhaust system

Number

Designation

Engine 133 in model 117

Engine 133 in model 156

BA49.10-P-1020-01AL

Clamp, front exhaust system to catalytic converter/gasoline particulate filter

Nm

35

35

 Exhaust system

Number

Designation

Engine 133 in model 176

BA49.10-P-1020-01AL

Clamp, front exhaust system to catalytic converter/gasoline particulate filter

Nm

35

 Exhaust system

Number

Designation

Engine 133 in model 117

Engine 133 in model 156

BA49.10-P-1021-01AL

Clamp, rear exhaust system to front exhaust system

Nm

35

35

 Exhaust system

Number

Designation

Engine 133 in model 176

BA49.10-P-1021-01AL

Clamp, rear exhaust system to front exhaust system

Nm

35

 Exhaust system

Number

Designation

Engine 133 in model 117

Engine 133 in model 156

BA49.10-P-1023-01AL

Clamp, exhaust pipe to rear muffler

Nm

55

55

 Exhaust system

Number

Designation

Engine 133 in model 176

BA49.10-P-1023-01AL

Clamp, exhaust pipe to rear muffler

Nm

55

 Frame floor assembly

Number

Designation

Model 117

Model 156

BA61.10-P-1002-01H

Bolt, front reinforcement brace to frame floor assembly

Nm

30

30

 Frame floor assembly

Number

Designation

Model 176, 246

BA61.10-P-1002-01H

Bolt, front reinforcement brace to frame floor assembly

Nm

30

 Frame floor assembly

Number

Designation

Model 117

Model 156

BA61.10-P-1003-01H

Bolt, rear reinforcement brace to frame floor assembly

Nm

30

30

 Frame floor assembly

Number

Designation

Model 176, 246

BA61.10-P-1003-01H

Bolt, rear reinforcement brace to frame floor assembly

Nm

30

Repair materials

Number

Designation

Order number

BR00.45-Z-1002-06A

Antifriction paste, rubber parts 2.5 kg, DBL 6867.00

A 000 989 01 60