Remove/install electronic level adjustment control unit (ENR) - AR32.33-P-0008RT
MODEL 251 with CODE (488) Steel/air suspension
Fig 1: Identifying Electronic Level Adjustment Control Unit (ENR) Remove/Install Components - Shown On Model 251.1
Shown on model 251.1
MODIFICATION NOTES
| 4.8.06 | Disconnect ground line - discontinued |
| Remove/install | |||
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| 1 | Read out coding from rear axle level control system control unit (N97) using STAR DIAGNOSIS diagnosis system | Only when the rear axle level control system control unit (N97) is replaced and if it can still be read out using the STAR DIAGNOSIS diagnosis system. | |
| Connect STAR DIAGNOSIS and read out fault memory | AD00.00-P-2000-04A | ||
| 2 | Remove front floor covering | AR68.20-P-2070RT | |
| 3 | Remove impact absorber (1) | ||
| 4 | Unscrew nuts (2, 4) and remove clips (3) | ||
| 5 | Remove intermediate bottom (5) | ||
| 6 | Disconnect electrical connector (6) | ||
| 7 | Unscrew nut (7), bolt (8) and rear axle level control system control unit (N97) | ||
| 8 | Install in the reverse order | ||
| 9 | Code the rear axle level control system control unit (N97) by means of the STAR DIAGNOSIS diagnosis system | ||
| Connect STAR DIAGNOSIS and read out fault memory | AD00.00-P-2000-04A | ||
| 10 | Check vehicle level at front and rear axle by means of STAR DIAGNOSIS diagnosis system, adjust and store normal level in the rear axle level control system control unit (N97) again | ||
| 11 | Perform basic programming | AR00.19-P-0200RT |