Test step	Test scope	Test connection	Test condition	Nominal value	Possible cause/Remedy
1.0	Damping adjustment	on X98	Set R=1200 . Switch (S45/1) in: Comfort Engine: at Idle
	Hard damping		Test all four damping valves by manually rocking vehicle.	Damping must be noticeably hard.	23 Damper valves, Damper valve hydraulics, ADS control module (N51).
	Soft damping	on X98	Set R=420 .
			Test all four damping valves by manually rocking vehicle. First rock vehicle at each axle, then for comparison, disconnect the left/right front/rear axledamper valve assembly connector (Y51x1, Y52x1, Y53x1, Y54x1) while the engine is running.	Damping must be noticeably soft.	23 Damper valves, Damper valve hydraulics, Hydraulic oil reservoir, ADS control module (N51). If the ADS MLI (A1e27) comes on after completing this test, you must clear DTC's and .