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Home >> Mercedes Benz >> 2016 >> C350e >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 205 Chassis - 2 Of 2 >> Testing & Repair >> Remove/Install Automatic Transmission Fluid Cooler >> Remove/Install Automatic Transmission Fluid Cooler - AR27.55-P-1000LW

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

Transmission 722.9 in model 205 with engine 177 

Transmission 722.9 in model 205 with engine 274.9 

Transmission 722.9 in model 205 with engine 276 

Transmission 722.9 in model 205 with engine 651 

Shown here is the radiator package on engine 651 

G13023185Courtesy of MERCEDES-BENZ USA

Shown here is the radiator package on engine 651 

Fig 1: Automatic Transmission Oil Cooler Components Location - Transmission 722.9 With Engine 274.9 Or Engine 276 In Model 205 (Shown On Engine 651)
G13023186Courtesy of MERCEDES-BENZ USA
CAUTION 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
CAUTION 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
WARNING 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
WARNING Risk of injury  to skin and eyes suffering scalding from contact with hot coolant spray.
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
  Notes on automatic transmission   AH27.19-P-0001-01NKB
REMOVINGINSTALLING Remove/install     
1.1 Remove intake air duct upstream of the air filter Transmission 722.9 in model 205 with engine 274.9
Transmission 722.9 in model 205 with engine 651
 
1.2 Remove left intake air duct upstream of the air filter Transmission 722.9 in model 205 with engine 177
Transmission 722.9 in model 205 with engine 276
 
2 Drain coolant from low-temperature system Transmission 722.9 in model 205 with engine 177 AR09.41-P-6834MNA
    Transmission 722.9 in model 205 with engine 274.9
Transmission 722.9 in model 205 with engine 276.8
Transmission 722.9 in model 205 with engine 651
INSTALLATION IMPORTANT : Install front and lower center engine compartment lining only after leak test.
AR09.41-P-6834LW
3 Detach oil lines (9, 10) from oil cooler (1)   AR27.10-P-0501-03LW
    SPECIAL TOOL Record plug Fig 3
4 Seal openings in oil cooler (1) using suitable stop plugs SPECIAL TOOL Record plug Fig 3
5 Remove coolant hoses (11, 12) from oil cooler (1)   AR20.20-P-7441-01RQ
6 Close off connections of coolant hoses at oil cooler (1) with protective covers SPECIAL TOOL Set of protective caps Fig 2
7 Seal coolant hoses (11, 12) using protective covers SPECIAL TOOL Set of protective caps Fig 2
8 Push retaining clip (8) in upward direction and remove oil cooler (1) NOTES
Push the retaining clip (8) carefully in an upward direction.
Otherwise the retaining clip (8) will be damaged.
If retaining clip (8) is damaged ↓
Secure oil cooler (1) at position marked by arrow using repair bolt (6) and washer (7).
 
9 Install in the reverse order    
INSPECT Check     
10 Check fluid level in automatic transmission and adjust to correct level Transmission 722.96 in model 205 with engine 274.9
Transmission 722.96 in model 205 with engine 276
Transmission 722.96 in model 205 with engine 651
Transmission 722.97 in model 205 with engine 276
AR27.00-P-0270SYZ
    Transmission 722.9 (except 722.96) in model 205 with engine 274.9
Transmission 722.9 (except 722.96) in model 205 with engine 651
Transmission 722.9 in model 205 with engine 177
AR27.00-P-0270W
WARNING 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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
11 Perform engine test run and check oil lines (9, 10) and oil cooler (1) for leak tightness    
12 Install front and center engine compartment paneling   AR61.20-P-1105LW
Fig 2: Identifying Set Of Protective Caps (001 589 00 91 00)
G07491911Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Record Plug (129 589 00 91 00)
G07473018Courtesy of MERCEDES-BENZ USA