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Remove/install automatic transmission fluid cooler - AR27.55-P-1000EWM

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TRANSMISSION 725.0 in MODEL 212 with ENGINE 642 

Fig 1: Automatic Transmission Fluid Cooler Remove/Install Components
G09975899Courtesy of MERCEDES-BENZ USA
DANGER Risk of injury  to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning  from swallowing hydraulic fluid. Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. AS00.00-Z-0013-01A
REMOVINGINSTALLING Remove/install     
1 Remove engine cover    
2.1 Remove radiator grille TRANSMISSION 725.0 in MODEL 212 with ENGINE 642
as of model year 2014
without CODE 772 (AMG styling package - front spoiler, side skirts and rear apron) without CODE 954 (Avantgarde)
 
AR88.40-P-4001EWM
2.2 Remove front bumper TRANSMISSION 725.0 in MODEL 212 with ENGINE 642
as of model year 2014
with CODE 772 (AMG styling package - front spoiler, side skirts and rear apron)
with CODE 954 (Avantgarde)
 
AR88.20-P-2000EWM
3 Remove center front reinforcement (1)   AR62.30-P-1570EW
4 Unclip air duct segment (2) and place to one side    
5 Remove electric controller unit for DISTRONIC (A89) together with bracket (4) TRANSMISSION 725.0 in MODEL 212 with ENGINE 642
with CODE 233 (DISTRONIC PLUS)
IMPORTANT Do not remove DISTRONIC electric controller unit (A89) from bracket (4).
 
6 Detach oil lines (5) from oil cooler (6)   AR27.10-P-0501-03CW
IMPORTANT Collect escaping gear oil with rag and seal connections immediately with suitable SPECIAL TOOL stop plug.
SPECIAL TOOL Record plug Figure
7 Remove screw/bolts (7)    
8 Unclip and remove oil cooler (6)    
9 Install in the reverse order    
INSPECT Check     
10 Check oil level in transmission and correct if necessary TRANSMISSION 725.0 in MODEL 212 with ENGINE 642
with CODE 805 (Model year 2015)
AR27.00-P-0270EWN
TRANSMISSION 725.0 in MODEL 212 with ENGINE 642
without CODE 805 (Model year 2015)
AR27.00-P-0270EWM
DANGER 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, while doing so check transmission for proper operation and check oil cooler (6) for leaktightness
Fig 2: Identifying Record Plug (129 589 00 91 00)
G09975900Courtesy of MERCEDES-BENZ USA