Remove/install brake line from the ESP hydraulic unit to the rear axle - AR42.10-P-0035MCU
MODEL 451.3/4
Illustrated on model 451.40
Fig 2: Identifying ESP Hydraulic Unit Brake Line To Rear Axle Remove/Install Components - Illustrated On Model 451.40
Shown on model 451.391/491
Fig 3: Identifying ESP Hydraulic Unit Brake Line To Rear Axle Remove/Install Components - Shown On Model 451.391/491
Shown on model 451.40
Fig 4: Identifying ESP Hydraulic Unit Brake Line To Rear Axle Remove/Install Components - Shown On Model 451.40
| Remove/install | |||
| Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes. | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | AS42.50-Z-0001-01A | |
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Notes on repairs to brake system | AH42.00-P-0003-01A | ||
| 1 | Remove maintenance flap | ||
| 2 | Unscrew cap (2) of brake fluid expansion reservoir and suction off brake fluid | ||
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 3 | Raise vehicle with vehicle lift | ||
| 4 | Remove underfloor panels | Rechargeable drill/screwdriver | |
| 5 | Remove diagonal struts | On model 451.431 | AR61.10-P-5138MCU |
| 6 | Remove bulkhead wall | On model 451.431 | AR61.25-P-6600MCU |
| 7 | Remove high-voltage battery | On model 451.391/491 | AR54.10-P-1140MEV |
| On model 451.390/490 | AR54.10-P-1140MEX | ||
| 8 | Unclip retaining clips (5) of electrical line (17) on upper brake line (1) | Not on model 451.390/490 | |
| 9 | Unscrew plastic nut (3), open folding clamp (4) using a suitable tool and take off | ||
| 10 | Unclip retaining clips (5) of electrical line (6), rpm sensor connector (L6/3x1) and rpm sensor connector (L6/4x1) on the brake lines (1) | ||
| 11 | Unclip brake lines (1) from the bracket (7) | Not on model 451.390/490 | |
| 12 | Unclip brake line (8) from the bracket (9) | Not on model 451.390/490 | |
| 13 | Loosen nuts (10), remove bolts (11) and remove bracket (12) | *BA42.45-P-1008-01F | |
| 14 | Support hydraulic unit (14) using transmission jack and removal fixture | Transmission jack |
Figure |
| 15 | Check bolted connections of brake lines (15) with the hydraulic unit (14) for color coding | AR42.10-P-0013-05MCC | |
| 16 | Loosen bolted connections of brake lines (15) with the hydraulic unit (14) and separate | *BA42.10-P-1010-04E | |
If a brake line (15) with red color coding has been loosened, this brake line (15) must be replaced. See: ↓ Remove/install brake line from the master brake cylinder to the ESP hydraulic unit |
AR42.10-P-0034MCU | ||
| 17 | Lower the hydraulic unit (14) carefully until the brake lines (1) are accessible | ||
| 18 | Check bolted connections of brake lines (1) with the hydraulic unit (14) and the master brake cylinder (16) for color coding | AR42.10-P-0013-05MCC | |
| 19 | Loosen bolted connections of brake lines (1) with the hydraulic unit (14) and loosen the brake hoses (16) and separate | *BA42.10-P-1002-04E | |
| *BA42.10-P-1010-04E | |||
| Figure | |||
| Figure | |||
| 20 | Remove brake lines (1) | ||
| 21 | Install new brake lines (1) | Only if the brake lines (1) with the red color coding have been detached. | |
| 22 | Install in the reverse order | ||
| 23 | Bleed brake system | AR42.10-P-0010MCU |
BRAKE LINES, BRAKE HOSES
| Number | Designation | Model 451.3/4 | |
|---|---|---|---|
| BA42.10-P-1002-04E | Brake pipe to brake hose | Nm | 16 |
| BA42.10-P-1010-04E | Brake line to ESP hydraulic unit | Nm | 16 |
ELECTRONIC STABILITY PROGRAM (ESP)
| Number | Designation | Model 451.3/4 | |
|---|---|---|---|
| BA42.45-P-1008-01F | Bolt, ESP hydraulic unit bracket to floor panel | Nm | 25 |