Removing and installing rear left exhaust manifold - AR14.10-P-3990F

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ENGINE 120.98

Shown on engine 120.980/981

Fig 1: Identifying Rear Left Exhaust Manifold Remove/Install Components - Shown On Engine 120.980/981

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig. item, etc.	Work instructions
	Remove front left exhaust manifold, install		AR14.10-P-3960F
	Remove electronic accelerator actuator together with throttle valve body, install	Engine 120.980/981	AR30.20-P-1262F
		Engine 120.982/983	AR30.20-P-1262FA
	Remove exhaust gas recirculation valve, install	Engine 120.980/981	AR14.20-P-7662F
	Left engine mount	Model 140 Unscrew bottom bolts at engine mount. See RA Engine Mechanicals Engine 120 Op. no. 22-2110
			*BA22.10-P-1001-01B
12	Self-locking nuts	replace
			*BA14.10-P-1001-01B
156d	Exhaust manifold	With engine block pulled to the right, lift up, insert. If necessary, after examining ↓
		Replace rivet nuts in the exhaust manifold	AR49.10-P-5531-01DA
	Exhaust manifold modified	Engine 120.980/981	BT14.10-P-0001-01A
156/1, 156/2	Gaskets	Apply dots of sealant to facilitate installation. Closed metal faces point toward cylinder head	*BR00.45-Z-1010-01A

EXHAUST MANIFOLD

Number	Designation		Engine 120
BA14.10-P-1001-01B	Nut to exhaust manifold	Nm	30

ENGINE MOUNTING, ENGINE MOUNTS, ENGINE SUPPORTING BRACKET

Number	Designation			Engine 120 in model 140 with transmission 717.4, 722.4/5
BA22.10-P-1001-01B	Bolt of engine mount to front axle carrier / body	M8	Nm	25

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1010-01A	Sealant	A 001 989 25 20