Remove/install exhaust system downstream of catalytic converter

AR49.10-P-7286MFD

Remove/install exhaust system downstream of catalytic converter

25.02.2020

Engine

260 in model 118, 177, 247

with code U55 (Multi-link axle)

Engine

282 in model 118, 177, 247

with code U55 (Multi-link axle)

except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

Modification notes

17.01.2020

Document completely revised.

Shown on model 177 with engine 282

1

Rear muffler

2

Bolts

Shown on model 177 with engine 282

3

Nut

8

Lines

11

Bolts

4

Rear reinforcement

9

Gasoline particulate filter

16

Screw

5

Bolts

10

Pin

B163/4

Temperature sensor upstream of gasoline particulate filter

6

Front reinforcement

Shown on model 177 with code 772 (AMG styling package – front spoiler, rocker panel and rear apron) with code B26 (AMG aerodynamics package) with code M016 (Uprated engine) with code P60 (AMG Night Package)

12

Electrical connector

14

Bolts

13

Cover

15

Exhaust tailpipes

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 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

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Remove

1

Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).

2

Raise vehicle and secure.

AR00.60-P-1006A

3

Support rear muffler (1).



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B

4

Release and disconnect electrical connector (12).

Engine 260 in model 118, 177, 247
with code M016 (Uprated engine)
with code U55 (Multi-link axle)

5

Remove cover (13).

Engine 260 in model 177
with code 772 (AMG styling - Front spoiler, side skirts)
with code B26 (AMG Aerodynamics package)
with code M016 (Uprated engine)
with code U55 (Multi-link axle)

6

Remove screws (14) and slide exhaust tailpipes (15) towards rear.

Engine 260 in model 118, 177, 247
with code P60 (AMG Night package)
with code U55 (Multi-link axle)

7

Remove screws (2).

8

Remove screw (16).

9

Remove temperature sensor upstream of gasoline particulate filter (B163/4) and secure on vehicle so that free of tension.

Engine 260, 282 in model 118
with code 961 (Exhaust system with OPF, generation 2.0)
with code U55 (Multi-link axle)
except code M005 (Vehicles with 4MATIC/all-wheel drive)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))
Engine 260, 282 in model 177, 247
with code 598 (Gasoline particulate filter (OPF) with sensor system)
with code U55 (Multi-link axle)
except code M005 (Vehicles with 4MATIC/all-wheel drive)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

AR49.20-P-0009MFD


Do not crush or kink or subject lines to tension.
This will otherwise result in damage and function impairments.

10

Remove lines (8) of low-pressure exhaust gas recirculation differential pressure sensor (B28/18) from gasoline particulate filter (9).


Do no kink, crush or subject lines (8) to tension.
This will otherwise result in damage and function impairments.

 Hose clamp pliers

*454589003700

11

Seal openings with suitable stop plug.

 Record plug

*129589009100

12

Remove nut (3).

When replacing exhaust system and/or elastomer bearings.

13

Unscrew screws (5) and remove rear reinforcement (4).

14

Remove front reinforcement (6).

15

Remove nuts from bolts (10).

16

Remove screws (11).

17

Secure entire exhaust system against falling down, slightly lower rear muffler (1), lift front exhaust system over bolts (10) and remove.



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B

 Aid of helper required.



Install

18

Remove combustion and corrosion residues at front flange.

 Replace seal at front flange.

19

Check front and rear elastomer bearing for damage.

If the elastomer bearings are damaged,



replace elastomer bearing.

20

Lift entire exhaust system, guide front elastomer bearing over bolts (10), support exhaust system on rear muffler (1) and secure against falling down.



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B

 Aid of helper required.

21

Secure brackets of rear muffler (1) using screws (2) to substructure.

 Engine 260 in model 177
with code U55 (Multi-link axle)
Engine 282 in model 118, 177, 247
with code U55 (Multi-link axle)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))Bolt, rear exhaust system bracket to body

*BA49.10-P-1010-02Q

22

Connect and lock electrical connector (12).

Engine 260 in model 118, 177, 247
with code M016 (Uprated engine)
with code U55 (Multi-link axle)

23

Align exhaust tailpipes (15) and screw in screws (14).

Engine 260 in model 118, 177, 247
with code P60 (AMG Night package)
with code U55 (Multi-link axle)

24

Install cover (13).

Engine 260 in model 177
with code 772 (AMG styling - Front spoiler, side skirts)
with code B26 (AMG Aerodynamics package)
with code M016 (Uprated engine)
with code U55 (Multi-link axle)

25

Attach rear reinforcement (4) and slightly tighten screws (5) by hand.

26

Slightly tighten nut (3) by hand.

When replacing exhaust system and/or elastomer bearings.

27

Slightly tighten screws (11) by hand.

28

Align exhaust system so that free of tension.

29

Tighten bolts (5).

 Engine 260 in model 118, 177, 247
with code U55 (Multi-link axle)
Engine 282 in model 118, 177, 247
with code U55 (Multi-link axle)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))Screw, center cross strut (rear) to frame floor assembly

*BA61.10-P-1002-01N

30

Fit nut (3).

When replacing exhaust system and/or elastomer bearings.

 Engine 260 in model 177
with code U55 (Multi-link axle)
Engine 282 in model 118, 177, 247
with code U55 (Multi-link axle)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))Nut, elastomer bearing to rear reinforcement

*BA49.10-P-1009-02Q

31

Tighten screws (11).

 Ensure new seal is correctly seated on front flange.

 Engine 260 in model 177
with code U55 (Multi-link axle)
Engine 282 in model 118, 177
with code U55 (Multi-link axle)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))Bolt, front exhaust system to center exhaust system

*BA49.10-P-1006-02Q

32

Attach nuts to the bolts (10).

 Engine 260 in model 177
with code U55 (Multi-link axle)
Engine 282 in model 118, 177
with code U55 (Multi-link axle)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))Nut, center exhaust system holder to front axle carrier

*BA49.10-P-1007-02Q

33

Attach lines (8) of low-pressure exhaust gas recirculation differential pressure sensor (B28/18) at gasoline particulate filter (9).


Do no kink, crush or subject lines (8) to tension.
This will otherwise result in damage and function impairments.

 Pay attention to installation position.

 Hose clamp pliers

*454589003700

34

Screw in screw (16).

 M61

*BA00.10-P-1002-04A

35

Coat thread of temperature sensor upstream of gasoline particulate filter (B163/4) with heat-resistant lubricating paste and install temperature sensor upstream of gasoline particulate filter (B163/4) so that free of tension.

Engine 260, 282 in model 118
with code 961 (Exhaust system with OPF, generation 2.0)
with code U55 (Multi-link axle)
except code M005 (Vehicles with 4MATIC/all-wheel drive)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))
Engine 260, 282 in model 177, 247
with code 598 (Gasoline particulate filter (OPF) with sensor system)
with code U55 (Multi-link axle)
except code M005 (Vehicles with 4MATIC/all-wheel drive)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

AR49.20-P-0009MFD


Do not crush or kink or subject lines to tension.
This results in damage and function impairments.

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

36

Install front reinforcement (6).

 Engine 260 in model 118, 177, 247
with code U55 (Multi-link axle)
Engine 282 in model 118, 177, 247
with code U55 (Multi-link axle)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))Screw, center cross strut (front) to frame floor assembly

*BA61.10-P-1001-01N



Check

 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

37

Perform engine test run to check exhaust system for leaks.

38

Release and lower vehicle.

AR00.60-P-1006A

 Metric screws/bolts and nuts as per MBN 10 105, 10 143

Number

Designation

8.8

10.9

BA00.10-P-1002-04A

M61

Nm

9

13

 Exhaust system

Number

Designation

Model 118 with engine 282

Model 177 with engine 260

BA49.10-P-1006-02Q

Bolt, front exhaust system to center exhaust system

M8

Nm

25

25

 Exhaust system

Number

Designation

Model 177 with engine 282

BA49.10-P-1006-02Q

Bolt, front exhaust system to center exhaust system

M8

Nm

25

 Exhaust system

Number

Designation

Model 118 with engine 282

Model 177 with engine 260

BA49.10-P-1007-02Q

Nut, center exhaust system holder to front axle carrier

M8

Nm

20

20

 Exhaust system

Number

Designation

Model 177 with engine 282

BA49.10-P-1007-02Q

Nut, center exhaust system holder to front axle carrier

M8

Nm

20

 Exhaust system

Number

Designation

Model 118 with engine 282

Model 177 with engine 260

BA49.10-P-1009-02Q

Nut, elastomer bearing to rear reinforcement

M8

Nm

25

25

 Exhaust system

Number

Designation

Model 177 with engine 282

Model 247 with engine 282

BA49.10-P-1009-02Q

Nut, elastomer bearing to rear reinforcement

M8

Nm

25

25

 Exhaust system

Number

Designation

Model 118 with engine 282

Model 177 with engine 260

BA49.10-P-1010-02Q

Bolt, rear exhaust system bracket to body

M8

Nm

20

20

 Exhaust system

Number

Designation

Model 177 with engine 282

Model 247 with engine 282

BA49.10-P-1010-02Q

Bolt, rear exhaust system bracket to body

M8

Nm

20

20

 Frame floor assembly

Number

Designation

Model 118, 177, 247

BA61.10-P-1001-01N

Screw, center cross strut (front) to frame floor assembly

M10

Nm

30

 Frame floor assembly

Number

Designation

Model 118, 177, 247

BA61.10-P-1002-01N

Screw, center cross strut (rear) to frame floor assembly

M10

Nm

30

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste, hot lubrication 1 kg, DBL 6879.20

A 000 989 76 51