Remove/install catalytic converter

AR49.10-S-5500EA

28.02.2018

Model	447 with engine 651
	with code MF4 (Emissions category Euro 4 N1 GR.III/N2)
Model	447.### 1# with engine 651
	with code ZG2 (Permanent all-wheel drive)
Model	447.### 2# with engine 651
	except code MF4 (Emissions category Euro 4 N1 GR.III/N2)

Modification notes

19.11.2013	Schelle Dieselpartikelfilter an Katalysator	MOTOR 651 im TYP 447	BA14.40-N-1001-01A
19.02.2016	Method extended	Operation steps 2, 3

S49.10-4542-09

Shown on model 447 with code ZG2 (All-wheel drive, permanent)

1	Catalytic converter	4	Electrical connection
2	Clamp	5	Clamp
3	Electrical connection

Shown on model 447.### 2#

1	Catalytic converter
6	Bracket

S49.10-4553-12

 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
 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
 	Remove/install
1	Remove lower engine compartment paneling		AR61.20-S-1105E
2	Remove catalytic converter (1) from holder (6)	Model 447.### 2#
		 For this purpose unscrew nuts.
		 Nut/bolt, bracket to front exhaust system	*BA49.10-N-1003-01I
3	Loosen clamp (2)	 The clamp (2) must be closable.
		 Model 447.### 1# with engine 651 with code ZG2 (Permanent all-wheel drive) Model 447.### 2# with engine 651 except code MF4 (Emissions category Euro 4 N1 GR.III/N2)Clamp connecting diesel particulate filter to catalytic converter	*BA14.40-N-1001-01A
		 Model 447 with engine 651 with code MF4 (Emissions category Euro 4 N1 GR.III/N2)Clamp, exhaust pipe to center muffler	*BA49.10-N-1005-02E
4	Remove engine cover		AR01.10-S-2405E
5	Remove engine air intake duct downstream of air filter		AR09.10-S-8130E
6	Detach electrical connections (3, 4)
7	Remove CAT (1) upward	 To do this remove clamp (5).
		 Installation: Replace sealing ring.
		 Clamp, catalytic converter to turbocharger	*BA49.10-N-1014-01I
8	Install in the reverse order
	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
9	Check leaktightness of exhaust system when engine is running	 Visual inspection only.

 Diesel particulate filter

Number	Designation		Engine 651 in model 447
BA14.40-N-1001-01A	Clamp connecting diesel particulate filter to catalytic converter	Nm	35

 Exhaust system

Number	Designation		Engine 651 in model 447
BA49.10-N-1003-01I	Nut/bolt, bracket to front exhaust system	Nm	23

 Exhaust system

Number	Designation		Engine 651 in model 447
BA49.10-N-1005-02E	Clamp, exhaust pipe to center muffler	Nm	35

 Exhaust system

Number	Designation		Engine 651 in model 447
BA49.10-N-1014-01I	Clamp, catalytic converter to turbocharger	Nm	15

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