maintenanceCompression Testfor 2018 Mercedes-Benz SL550 R231 4.6L V8 BiTurbo M278 · RWDLabor Hours0.9hrRange: 0.7–1.1 hrConfidenceestimatedAt $110/hr (independent shop)$99Estimated labor cost. Parts not included.Other labor times on this vehicle100K Service8.5 hr30K Service2.5 hr4WD Actuator7.2 hr60K Service4.5 hr90K Service4.5 hrABS Module2.5 hrABS Pump3.6 hrABS Wheel Speed Sensor - Front3.6 hrCompression Test on similar vehicles1997 Acura CL 2.2L I40.5 hr1997 Acura CL 3.0L V60.5 hr1998 Acura CL 2.2L I40.5 hr1998 Acura CL 3.0L V60.5 hr1999 Acura CL 2.2L I40.5 hr1999 Acura CL 3.0L V60.5 hr📝 Suggest a correction to this labor time