Remove/install components for exhaust system

AR49.10-P-7100EW

Remove/install components for exhaust system

7.2.12

 

Remove/install

Danger!

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

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

AS00.00-Z-0010-01A

Danger!

Risk of injury to skin and eyes caused by handling hot or glowing objects.

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

AS00.00-Z-0002-01A

Danger!

Risk of injury from grazing 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



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

Remove engine compartment paneling

If necessary

AR61.20-P-1105EW

 Installation: Only install engine compartment paneling after engine test run and leak test.

2

Disconnect electrical connector(s) for O2 sensor(s) and expose feed lines

3

Remove exhaust gas recirculation lines

Engine 272.983

AR14.20-P-1020-01EWD



*BA27.40-P-1008-01A



*BA49.10-P-1040-01AE



*BA49.10-P-1041-01AE

4

Remove corresponding diagonal strut(s) at rear

Model 212.2, if required



*BA61.10-P-1006-01H

5

Loosen corresponding components of exhaust system at connecting points and remove

 Installation: Align components for exhaust system tension-free before tightening the bolted connections.

 Installation: Apply lubricating paste to exhaust rubber bearings (8).

Lubricant paste

*BR00.45-Z-1002-06A

 Screw/bolt, catalytic converter to exhaust manifold

*BA49.10-P-1001-01AE

Screw/bolt, catalytic converter holder to catalytic converter

*BA49.10-P-1010-01AE

Screw/bolt, bracket to transmission

*BA49.10-P-1011-01AE

Screw/bolt, catalytic converter connecting pipe to catalytic converter

*BA49.10-P-1021-01AE

 Screw/bolt, exhaust bracket to transmission

*BA49.10-P-1023-01AE

Screw/bolt, exhaust bracket to exhaust

*BA49.10-P-1024-01AE

Nut, center muffler clamp to connecting pipe with catalytic converter

*BA49.10-P-1032-01AE

Nut, center muffler clamp to rear muffler

*BA49.10-P-1033-01AE

Screw/bolt, vibration damper to center muffler

*BA49.10-P-1034-01AE

Screw/bolt, cross connection left rear to right rear

*BA49.10-P-1035-01AE

Screw/bolt, exhaust rubber mount holder to frame floor assembly/rear axle carrier

*BA49.10-P-1036-01AE

Screw/bolt, flange for exhaust gas recirculation lines to exhaust gas recirculation positioner

*BA49.10-P-1040-01AE

Screw/bolt, exhaust gas recirculation line clamp to catalytic converter

*BA49.10-P-1041-01AE

 Transmission 716.6

*BA26.10-P-1001-01C

Transmission 722.6, 722.9

*BA27.40-P-1008-01A



Clean

6

Remove combustion and corrosion residue at separation points

7

Check exhaust rubber mount (8) for damage and wear

8

Install in the reverse order



Checking

9

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

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

10

Perform an engine test run and check exhaust system for leaks

Number

Designation

Engine
156, 157, 271,
272, 273, 276, 278
in model 212

BA49.10-P-1001-01AE

Screw/bolt, catalytic converter to exhaust manifold

Nm

20

BA49.10-P-1010-01AE

Screw/bolt, catalytic converter holder to catalytic converter

Nm

35

BA49.10-P-1011-01AE

Screw/bolt, bracket to transmission

Nm

39

BA49.10-P-1021-01AE

Screw/bolt, catalytic converter connecting pipe to catalytic converter

Nm

20

BA49.10-P-1023-01AE

Screw/bolt, exhaust bracket to transmission

Nm

20

BA49.10-P-1024-01AE

Bolt/nut, exhaust bracket to exhaust

Nm

20

BA49.10-P-1032-01AE

Screw/bolt / nut, center muffler clamp to connecting pipe with catalytic converter

Nm

35

BA49.10-P-1033-01AE

Nut, center muffler clamp to rear muffler

Nm

35

BA49.10-P-1034-01AE

Screw/bolt, vibration damper to center muffler

Nm

20

BA49.10-P-1035-01AE

Screw/bolt, cross connection left rear to right rear

Nm

20

BA49.10-P-1036-01AE

Screw/bolt, exhaust rubber mount holder to frame floor assembly/rear axle carrier

Nm

20

BA49.10-P-1040-01AE

Screw/bolt, flange for exhaust gas recirculation lines to exhaust gas recirculation positioner

Nm

9

BA49.10-P-1041-01AE

Screw/bolt, exhaust gas recirculation line clamp to catalytic converter

Nm

9

Number

Designation

Transmission
722.6
except 722.660/661/662/663/666/673/674

Trans-mission 722.9

BA27.40-P-1008-01A

Screw/bolt, automatic transmission to engine

M1040

Nm

39

38

M1090

Nm

39

38

M12

Nm

-

-

Number

Designation

Trans-mission
716.6

BA26.10-P-1001-01C

Screw/bolt, transmission to engine

Nm

40

Number

Designation

Model 212

BA61.10-P-1006-01H

Screw/bolt, mount for rear diagonal strut bracket on body

Nm

60

Number

Designation

Order number

BR00.45-Z-1002-06A

Antifriction paste, rubber parts 2.5 kg, DB supply specification 6867.00

A 000 989 01 60