2008 Mercedes CLS-Class Owner's Manual - Page 289

Operation Engine compartment Checking engine oil level When checking the oil level the vehicle must be parked on level ground with the engine at operating temperature, the vehicle must have been stationary for at least 5 minutes with the engine turned off with the engine not at operating temperature yet, the vehicle must have been stationary for at least 5 minutes with the engine turned off 1 Oil dipstick 2 Upper (max) mark 3 Lower (min) mark To check the engine oil level with the oil dipstick, do the following: Open the hood ( page 286). Pull out oil dipstick 1. Wipe oil dipstick 1 clean. Fully insert oil dipstick 1 into the dipstick guide tube. Pull out oil dipstick 1 again after approximately 3 seconds to obtain accurate reading. The oil level is correct when it is between lower (min) mark 3 and upper (max) mark 2 of oil dipstick 1. i CLS 550 only: The filling quantity between the upper and lower marks on the oil dipstick is approximately 2.1 US qt. (2.0 l). i CLS 63 AMG only: The filling quantity between the upper and lower marks on the oil dipstick is approximately 1.6 US qt. (1.5 l). If necessary, add engine oil. For adding engine oil, see "Adding engine oil" ( page 289). For more information on engine oil, see "Fuels, coolants, lubricants etc." ( page 448). 288