294 Maintenance X Replace green cap B and tighten it as far as it will go. or X Press on cover ? and insert spring A . If the coolant level in coolant expansion tank : is too low, the on-board computer displays the red event window with the * symbol . Hydraulic clutch actuation system X To check: check the coolant temperature in the on-board computer ( Y page 125). In order to ensure the correct coolant level, the coolant temperature must be between 0 † and 25 †. Important safety notes Maintenance and care G WARNING Service product can be poisonous and haz- ardous to health. There is a risk of injury.
Observe the instructions on the respective original container when using, storing and dis- posing off service products. Always store ser- vice products in the sealed original container. Always keep service products out of the reach of children. X Check coolant level. The coolant in coolant expansion tank : must be between "MIN" mark = and "MAX 6-Zylinder mit Allison" ; . ! Brake fluid corrodes paint, plastic and rubber. If brake fluid comes into contact with paint, plastic or rubber, rinse with water immediately. Have the brake fluid replaced regularly at a qualified specialist workshop. You can find the intervals for brake fluid change in the maintenance booklet. X To top up:
make sure that the coolant tem- perature is below 50 †. X Turn green cap B slowly anti-clockwise and release the pressure. X Unscrew and remove green cap B . or X Remove spring A and detach cover ? using an upward motion. X Observe the information on coolant, cool- ant mixture ratio and water quality ( Y page 362). X Top coolant up to "MAX 6-Zylinder mit Alli- son" mark ; .