Mercedes-Benz 2004 CL-Class Operator's Manual page 379

Technical data
Fuels, coolants, lubricants, etc.
Anticorrosion/antifreeze quantity
Model
CL 500
CL 600 (main cooling system)
CL 600 (low temperature cooling system) 1.2 US qt. (1.1 l)
CL 55 AMG
378
Approx. freeze protection
– 35°F (– 37°C) – 49°F (– 45°C)
6.1 US qt. (5.75 l) 6.7 US qt. (6.3 l)
7.9 US qt. (7.5 l) 8.7 US qt. (8.25 l)
1.3 US qt. (1.2 l)
7.7 US qt. (7.25 l) 8.5 US qt. (8.0 l)