Removing and installing catalytic converter or front exhaust system - AR49.10-P-5531A

ENGINE 112.921 in MODELS 210.063 /263 /081 /281

ENGINE 112.941 in MODELS 210.065 /082 /265 /282

ENGINE 113.940 in MODELS 210.070 /270

ENGINE 113.980 in MODELS 210.074 /274 158

Fig 1: Identifying Catalytic Converter Or Front Exhaust System Components

	Remove/install
1	Disconnect plug connection for left and right O2 sensors upstream of TWC (G3/3x1, G3/4x1)		AR14.00-P-5303A
2.1	Detach front axle torsion bar from longitudinal frame member and swivel torsion bar downwards	Models 210.063/263/065/265 Replace bolts
			*BA32.20-P-1001-02D
			*BA32.20-P-1002-02D
3	Unscrew bolts (11/1) at flange connection between front exhaust system / exhaust manifold	If bolts are sluggish or thread is damaged: ↓
		Replace rivet nuts in exhaust manifold.	AR49.10-P-5531-01DA
		Bolts	*BA14.10-P-1002-01B
4	Unscrew nuts (11/2) on bracket	Replace nuts
5	Disconnect flange connection between front / rear exhaust system and remove front exhaust system with catalytic converter (158)	Ensure that heat shield (11/6) is not damaged while removing and installing catalytic converter (158). Check seal ring (11/4) for damage and replace if necessary. Use emery cloth to remove combustion and corrosion residues at connection points. Replace nuts (11/3).
			*BA49.10-P-1002-01A
	Notes on disposing of catalytic converters	Vehicles with three-way catalytic converter code 620a	OS49.10-P-1000-01A
6	Install in the reverse order	Install catalytic converter free of stress.

Exhaust manifold

Number	Designation		Engine 112 except 112.951/ 976	Engines 113.940/941/942/943/944/945/946/948/960/961/962/963/964/965/966/967/968/969/971/980/981/982/984/986/992/993/995
BA14.10-P-1002-01B	Flange connection, exhaust manifold and front exhaust pipes	Nm	20	20

Front axle stabilizer bar

Number	Designation		Model 210 without level control / ADS CODE 217a except model 210.07 with code Z04, Z06 except Model 210.08/28	Model 210 with level control / ADS CODE 217a except model 210.07 with code Z04, Z06 except model 210.08/28
BA32.20-P-1001-02D	Self-locking bolt, torsion bar to frame	Nm	20	20
BA32.20-P-1002-02D	Self-locking bolt, torsion bar connecting rod to wishbone	Nm	80	80

Exhaust system

Number	Designation		Engines 112, 113 in model 210
BA49.10-P-1002-01A	Bolt, flange connection to exhaust pipe	Nm	20