S450 Tire Proper Pressure (W223)
The tire pressure on the Mercedes S450 depends on the tire size and load.
255/50R18 M+S, 255/50R19, 255/45R19 M+S
Low load – FR 230kPa (34psi), RR 240kPa (35psi)
High load – FR 260kPa (38psi), RR 310kPa (45psi)
255/45R19, 285/40R19
Low load – FR 200kPa (29psi) , RR 220kPa (32psi)
High load – FR 230kPa (34psi) , RR 270kPa (40psi)
255/40R20, 285/35R20
Low load – FR 220kPa (32psi) , RR 220kPa (32psi)
High load – FR 260kPa (38psi), RR 310kpa (45psi)
235/55R18, 255/40R20 M+S, 285/30R21, 255/35R21
Low load – FR 240kPa (35psi), RR 230kPa (34psi)
High load – FR 270kPa (40psi), RR 330kPa (48psi)
