210 589 00 91 00 Test cap - WS20.00-P-0017B
WARNING: This page is about a different car, the 2009 Mercedes-Benz E350 and 2008 Mercedes-Benz E350. However, it is still accessible from the selected car via links, so may be relevant.
FG 20/Set B
MODEL 124, 129, 140, 163, 164, 170, 171, 197, 199, 202, 203, 204, 207, 208, 209, 210, 211, 212, 215, 216, 218, 219, 220, 221, 230, 240, 251, 461, 463
with screw cap on expansion reservoir
MODEL 639 with ENGINE 112, 272, 642, 646
with screw cap on expansion reservoir
MODEL 636 with ENGINE 646
with screw cap on expansion reservoir
Use:
Test connection with thread for coolant expansion reservoir to testing unit 124 589 24 21 00 and filling device 285 589 00 21 00.