Removing Oil Cooler For Gear-Wheel Oil

→ Let hot components cool down.

→ Wear personal protective gear.

1. Clamp off coolant hoses -1 and 2-  using hose clamping pliers Nr.192 -3 and 4-  .
   Fig 1: Removing Coolant Hoses

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   WARNING: Hot fluid

   • Danger of scalding

   → Avoid contact with hot fluid.

   → Wear personal protective gear.

2. Place a container under the vehicle to collect coolant.
3. Pull off coolant hoses.
   1. 3.1. Open spring band clamps -3 and 4-  on the coolant hoses -1 and 2-  .
   2. 3.2. Pull off coolant hoses and close off openings.
      Fig 2: Identifying Spring Band Clamps

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4. Place a container under the vehicle to collect the oil/coolant mixture.

   Information 

   The upper threaded joints for the transmission oil cooler cannot be loosened because they are obstructed by the B+ cable socket. To access the threaded joints, part of the cable duct for the B+ line must be detached.

5. Detach part of the cable duct for the B+ line.
   1. 5.1. Only unscrew the two screws at the right -2-  on the cable duct -1-  .
   2. 5.2. Press the cable socket up in order to access the upper screws for the transmission oil cooler.
      Fig 3: Identifying Cable Duct For B+ Line

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6. Remove oil cooler.
   1. 6.1. Unscrew aluminum screws (M6 x 55) -1-  .
   2. 6.2. Unscrew aluminum screws (M6 x 20) -2-  .
   3. 6.3. Remove oil cooler.
   4. 6.4. Collect emerging coolant and transmission oil.
   5. 6.5. Replace screws! 
      Fig 4: Identifying Threaded Joint For Transmission Oil Cooler

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7. Remove and replace molded seal -1-  .
   Fig 5: Identifying Molded Seal

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   1. 7.1. Carefully clean the sealing faces.