Mercedes-Benz GLK-Class: Checking the coolant level - Checking and adding other service products - Engine compartment - Maintenance and care - Mercedes-Benz GLK-Class Owner's ManualMercedes-Benz GLK-Class: Checking the coolant level

Only check the coolant level when the vehicle is on a level surface and the engine has cooled down.

  • Turn the SmartKey to position 2 () in the ignition lock. On vehicles with KEYLESS-GO, press the Start/Stop button twice ().
  • Check the coolant temperature display in the instrument cluster. The coolant temperature must be below 158 F (70 C).

WARNING WARNING

In order to avoid any potentially serious burns:

  • use extreme caution when opening the hood if there are any signs of steam or coolant leaking from the cooling system, or if the coolant temperature display indicates that the coolant is overheated.
  • do not remove the pressure cap on the coolant reservoir if the coolant temperature is above 158 ‡ (70 †). Allow the engine to cool down before removing the cap. The coolant reservoir contains hot fluid and is under pressure.
  • using a rag, slowly turn the cap approximately 1/2 turn to relieve excess pressure. If opened immediately, scalding hot fluid and steam will be blown out under pressure.
  • do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts.

  • Slowly turn cap 1 half a turn counterclockwise and allow excess pressure to escape.
  • Turn cap 1 further counter-clockwise and remove it. If the coolant is at the level of marker bar 3 in the filler neck when cold, there is enough coolant in coolant expansion tank 2. If the coolant is approximately 0.6 in (1.5 cm) above marker bar 3 in the filler neck when warm, there is enough coolant in coolant expansion tank 2.
  • If necessary, add coolant that has been tested and approved by Mercedes-Benz.
  • Replace cap 1 and turn it clockwise as far as it will go.

For further information on coolant, see ().

    Windshield washer system and headlamp cleaning system
    The washer fluid reservoir is used for both the windshield washer system and the headlamp cleaning system. Vehicle components and their service products must match. You should, therefore, only ...

    See also:

    Unfastening the seatbelt
    Unfastening the seatbelt Push the release button of the center seatbelt buckle (on the left-hand side) to unfasten the seatbelt. NOTE When the seatback is folded down for greater cargo are ...

    Seats
    ADJUSTABLE FRONT SEATS WARNING: o Never adjust the driver’s seat while the vehicle is moving. Any sudden or unexpected movement of the seat could cause you to lose control of the vehicle re ...

    Unlocking the phonebook
    1. Select the “PHBK UNLOCK”/“PHONEBOOK UNLOCK” menu. Then “CURRENT PIN?” is displayed. NOTE If the phonebook is not locked, “UNLOCK” is displayed and the mode changes to the ...