Remove/Install Automatic Transmission Fluid Cooler - AR27.55-P-1000MNI

Transmission 725.0 in model 290 with engine 177 

Transmission 725.163 in model 290 with engine 177.8 

Shown on transmission 725.0 

Fig 1: Automatic Transmission Fluid Cooler Components Location - Transmission 725.0 In Model 290 With Engine 177

Courtesy of MERCEDES-BENZ USA

	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
	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 overpressure. 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 transmission oil. Health risk caused by swallowing transmission oil	Wear protective gloves, protective clothing and safety glasses. Do not pour transmission oil into beverage bottles.	AS00.40-Z-0001-01A
	Risk of injury  caused by scraping 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 automatic transmission		AH27.19-P-0001-01NKB
	Remove/install
1	Remove center and rear lower engine compartment lining.	: Only install center and rear lower rear engine compartment paneling again after leak test	AR61.20-P-1105FRX
2	Drain off low-temperature circuit coolant.		AR09.41-P-6834MNI
3	Detach oil lines (2, 4) from oil cooler (3).		AR27.10-P-0501-03LF
		Assembly cleaner	*BR00.45-Z-1028-04A
		Record plug	Fig 3
4	Remove coolant line (5) from oil cooler (3).		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 2
5	Unclip coolant lines (5, 7) from holder (1).
6	Unscrew screws (6) and remove oil cooler (3) with holder (1).	Transmission 725.163 in model 290 with engine 177.8 Screw, bracket to transmission	*BA27.55-P-1003-01E
		Transmission 725.0 in model 290 with engine 177 Bolt, oil cooler to transmission	*BA27.55-P-1018-01D
7	Check seals in oil cooler (3) for damage.	If damage is found, ↓ Replace oil cooler (3).
8	Unscrew screws of holder (1) and remove holder (1) from oil cooler (3).	When replacing oil cooler (3). Transmission 725.163 in model 290 with engine 177.8 Screw, oil cooler to bracket	*BA27.55-P-1004-01E
		Transmission 725.0 in model 290 with engine 177 Bolt of oil cooler to bracket	*BA27.55-P-1024-01D
9	Install in the reverse order.
10	Check and correct oil level in automatic transmission.		AR27.00-P-0270EWN
	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
11	Carry out engine test run and check oil cooler (3) and oil lines (2, 4) for proper operation and leak tightness.
12	Install center and rear lower engine compartment lining.		AR61.20-P-1105FRX

Fig 2: Identifying Set Of Protective Covers (001 589 11 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA