Shown on model 639 as of vehicle identification number (VIN) 030231 without CODE MA0 (E-CELL 60 kW) |
1 | Semi-trailing arm |
2 | Rear axle shaft |
3 | Electric line |
X62/21 | ABS/ASR rpm signal electric connector, left rear |
X62/22 | ABS/ASR rpm signal electric connector, right rear |
X62/39 | Rear axle BWI electrical connector, left |
X62/40 | Rear axle BWI electrical connector, right (only on model 639 up to 16.01.08) |
N35.00-2073-06
Shown on model 639 without CODE CL0 (Lowerable/raisable air suspension) |
4 | Screw |
5 | Caliper support |
6 | Brake caliper |
7 | Screw |
8 | Rear axle spring |
L6/3 | Left rear rpm sensor |
L6/4 | Right rear rpm sensor |
S10/3 | Brake pad contact sensor, left rear |
S10/4 | Right rear brake pad contact sensor (only on model 639 up to 16.01.08) |
S42.10-4502-06
9 | Cam bolt |
10 | Collar bolt |
S35.15-4500-06
Shown on model 639 with code XZ1 (Model generation 1) on right side of vehicle |
11 | Cover |
S35.25-4502-04
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Topical note | Notes on self-locking nuts and bolts | ||
Topical note | General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system | ||
| Remove/install | ||
1 | Remove left and right outer cover (11) from semi-trailing arm (1) | Model 636 | |
Installation: Do not reinstall the cover (11) until after the wheel alignment check. | |||
2 | Lower vehicle at rear axle | Model 639 | |
See operator's manual. | |||
3 | Switch electronic level control to passive mode | Model 639 | |
See operator's manual. | |||
4 | Unscrew collar nut of rear axle shaft (2) | ||
On model 639 with CODE MA0 (E-CELL 60 kW), remove the collar nut of the rear axle stub shaft only if the semi-trailing arm (1) is to be replaced. | |||
Model 636, 639.### ## as of 457456 | |||
5 | Remove rear wheel | ||
6 | Secure vehicle on vehicle lift | ||
7 | Disconnect left rear ABS/ASR rpm signal electrical connector (X62/21) or right rear ABS/ASR rpm signal electrical connector (X62/22) and left rear axle BWI electrical connector (X62/39) or right rear axle BWI electrical connector (X62/40) and remove from bracket | ||
| Connector for brake wear indicator and rear axle rpm sensor modified | Model 639.### ## as of 030231 | |
For this purpose unlock catches. | |||
8 | Undo cable tie on underbody and create access to electrical lines (3) | Installation: Replace cable tie. | |
Create access to the electrical lines (3) of the left rear rpm sensor (L6/3) or right rear rpm sensor (L6/4) and of the left rear brake lining contact sensor (S10/3) or right rear brake lining contact sensor (S10/4). | |||
9 | Remove rear brake cable through passage in substructure | ||
Installation: Check the setting of the parking brake. | |||
If necessary: | |||
| |||
Adjust parking brake. | |||
10 | Detach torsion bar linkage for stabilizer bar from semi-trailing arm (1) |
| |
Screw/bolt, link rod to semi-trailing arm | |||
11 | Detach level sensor lever from semi-trailing arm (1) | Model 636, 639 | |
Model 636, 639 | |||
Model 639 | |||
12 | Remove bolt (7) from brake wear indicator | Screw/bolt, brake wear indicator to floating brake caliper | |
13 | Disconnect electrical connector of left rear brake lining contact sensor (S10/3) or right rear brake lining contact sensor (S10/4) | Installation: Check the left rear brake lining contact sensor (S10/3) and right rear brake lining contact sensor (S10/4) as well as the electrical lines for damage; replace if necessary. | |
14 | Remove bolts (4) | Screw/bolt, floating caliper carrier to semi-trailing arm | |
15 | Detach brake caliper support (5) with brake caliper (6) and secure to brake hose holder (arrow) | Installation: Check brake hose for damage. | |
If the brake hose is damaged: | |||
| |||
Install a new brake hose. | |||
Replace brake hoses | |||
16 | Support and secure semi-trailing arm (1) | ||
| 000 588 11 62 00 Major assembly mount | ||
| 000 588 10 62 00 Support plate | ||
17.1 | Remove rear axle spring (8) | Model 636 | |
17.2 | Detach spring bellows | Model 639 | |
Removal: Release the residual pressure in the spring bellows by undoing the compressed air line union nut. | |||
Unhook the spring bellows only downward out of the semi-trailing arm (1). | |||
18 | Remove shock absorber bolt from semi-trailing arm (1) | Screw/bolt, rear shock absorber to semi-trailing arm | |
19 | Remove cam bolt (9) and collar bolt (10) | Installation: Replace cam bolt (9), collar bolt (10) and nuts. The cam bolt (9) and the collar bolt (10) are not tightened to the specified torque and tightening angle until after the wheel alignment check. | |
Nut of bolt, semi-trailing arm to substructure | |||
20 | Remove rear axle shaft (2) from the wheel hub of the semi-trailing arm (1) | ||
Secure the rear axle shaft (2) to the underfloor. On model 639 with CODE MA0 (E-CELL 60 kW), remove the rear axle stub shaft only if the semi-trailing arm (1) is to be replaced. | |||
Extraction and insertion tool | |||
21 | Remove tools for support and remove semi-trailing arm (1) | Installation: Check rubber mount in semi-trailing arm (1). | |
If wear or damage is present: | |||
| |||
Install new rubber bushing. | |||
| |||
22 | Remove rear axle brake disk | Only when replacing semi-trailing arm (1). | |
23 | Remove rear brake cable from semi-trailing arm (1) | Only when replacing semi-trailing arm (1). | |
24 | Remove left rear rpm sensor (L6/3) or right rear rpm sensor (L6/4) from semi-trailing arm (1) | Only when replacing semi-trailing arm (1). | |
| Check | ||
25 | Check leak tightness of radial shaft sealing ring at side of rear axle differential | Model 636 | |
In the event of leaks: | |||
| |||
Replace radial shaft sealing ring. | |||
26 | Install in the reverse order | ||
27 | Perform wheel alignment check |
210 589 03 43 00
Extraction and insertion tool