Remove/Install Heat Exchanger - AR18.30-P-6841MRI

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Engine 264 in model 205, 253

Shown with code B01 (48V technology)

Fig 1: Heat Exchanger Components Location - Engine 264 In Model 253 (Shown With Code B01)

Courtesy of MERCEDES-BENZ USA

	Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
	Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Remove/install
1	Drain off coolant.	Only install engine compartment paneling after leak test.	AR20.00-P-1142MRI
2	Remove top bracket of the charge air cooler with charge air lines, place charge air cooler with connected coolant lines toward the front, and secure against falling down.	Only install engine cover after the leak test.	AR09.41-P-6817MRI
3	Remove screws (2) in opposite order to tightening procedure and remove heat exchanger (1).	Tighten bolts on heat exchanger	AR18.30-P-6841-01MRH
		Replace seals.
		Bolt, oil cooler to timing case	*BA18.30-P-1001-01P
4	Install in the reverse order.
5	Check engine oil level and correct if necessary.
			AP18.00-P-1812MKI
	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
	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
6	Perform engine test run. While doing so, check engine for proper operation and leak tightness.
7	Install engine compartment linings.		AR61.20-P-1105LW
8	Install engine cover.		AR01.10-P-2405MRI

OIL COOLING

Number	Designation			Engine 264
BA18.30-P-1001-01P	Bolt, oil cooler to timing case	Stage 1	Nm	10
BA18.30-P-1001-01P	Bolt, oil cooler to timing case	Stage 2	Nm	10