12V 40A 850Ohm,
5 prong Multi-use Relay, see below

for Starter relay
B (245) [plug position M], C (204) [M]
CL (215) [L], CL (216) [H]
CLS (218) [M], GLK (204) [M]
E (207) [M], E (212) [M]
M (164) [I], GL (164) [I], R (251) [I]
S (220) [L], S (221) [H], SLS (197) [I]
SL500/SL600 (129) [], SL (230) [M]

for Air Suspension relay
CL (216) [plug position B], E (211) [S]
M (164) [G], GL (164) [G], R (251) [G]
S (221) [B]