Calibrate electronic level control (ELC [ENR]) control unit · ar3233m0004a · Mercedes-Benz WIS

AR32.33-M-0004A

Calibrate electronic level control (ELC [ENR]) control unit

15.1.10

MODEL 905.613
Minibus Sprinter Classic 6 t with wheelbase 4250 mm,
with rear air suspension

MODEL 905.613
Minibus Sprinter Low Floor 6 t with wheelbase 4250 mm,
with rear air suspension

Calibrate electronic level control (ELC [ENR]) control unit

M32.33-0014-01

Minibus Sprinter low-floor 6 t

1 Spacer

A Adjustment dimension

Minibus Sprinter

Classic 6 t

B Adjustment dimension

M32.33-0015-01

 Danger!	Danger to life from lowering vehicle when working between wheels and body. Risk of injury by pinching or crushing when working on the air suspension.	Do not work between wheel and wheel well or in wheel box. Only carry out check and adjustment operations from underneath the vehicle. Secure areas with moving vehicle parts against unauthorized access.	AS32.22-Z-0001-01A
1	Connect STAR DIAGNOSIS	 Diagnostic socket for electronic level control on driver side seat frame.
2	Call up the "Level calibration" menu under "Control unit adaptations" of electronic level control (ENR) control unit
	Calibrate driving level
3.1	Raise rear frame, insert spacer blocks (1) at right and left and lower frame onto spacer blocks (1)	Only Minibus Sprinter low-floor 6 t
	Spacer block for vehicle level adjustment	 Observe installation position: Adjustment dimension (A) between frame and axle.	WF58.50-N-3222-01D
3.2	Raise frame at rear until adjustment dimension (B) is reached	Only Minibus Sprinter Classic 6 t
			*BE40.20-N-1001-03B
4	Check vehicle level	 Difference between left and right max. 5 counts. If the desired values are not achieved:  Adjust linkage of level sensors.
5	Measure flange angle of retarder and rear axle flange angle	Only Minibus Sprinter low-floor 6 t	AR41.10-M-0087A
		The flange angle should be equal, max. difference 1°. If this value is not reached:  Change vehicle level accordingly.
6	Calibrate driving level	STAR DIAGNOSIS Compact diagnostic system for commercial vehicles
7	Raise rear frame, remove spacer blocks (1)	Only Minibus Sprinter low-floor 6 t
	Calibrate upper level
8	Raise frame at rear	 Only Minibus Sprinter Classic 6 t approx. 135-140 counts Minibus Sprinter low-floor 6 t Approx. 155-165 counts Safety ropes on rear axle may not be pulled to fully taut condition.
9	Calibrate upper level	STAR DIAGNOSIS Compact diagnostic system for commercial vehicles
	Calibrate lower level
10	Lower rear frame to axle stop
11	Check lower level	 Only Minibus Sprinter Classic 6 t approx. 10 counts Minibus Sprinter low-floor 6 t approx. 20 counts
12	Calibrate lower level	STAR DIAGNOSIS Compact diagnostic system for commercial vehicles
13	Delete ENR fault memory	 Perform using STAR DIAGNOSIS. If the calibration is performed correctly, the indicator lamps for "ENR" and "Driving level" go out, and the vehicle is set to driving level.

Check values for rear axle vehicle level control

Number	Designation		Model 905.613 Minibus Sprinter Classic 6 t


BE40.20-N-1001-03B	Distance between upper edge of frame and upper edge of air bellows support (dimension B)	mm	450

Referenced documents

ar4110m0087a Measure flange angle of propeller shafts
as3222z000101a Risk of death from lowering vehicle when working between wheels and body. Risk of injury from pinching or crushing when working on the air suspension.
wf5850n322201d Spacer block for vehicle level adjustment