Check Hydraulic System Of Soft Top - AR77.37-P-0001LWR
WARNING: This page is about a different car, the 2023 Mercedes-Benz C300, 2022 Mercedes-Benz C300, 2021 Mercedes-Benz C300, 2020 Mercedes-Benz C300, and 2019 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
Model 205.4
Model 217.4
Model 238.4
Shown on Model 205.4
Shown on Model 205.4
| Risk Of Injury
to skin or eyes from hydraulic fluid spraying out under pressure. Risk Of Poisoning from swallowing hydraulic fluid. |
Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. | AS00.00-Z-0013-01A | |
| Remove | |||
| 1 | Expose soft top control hydraulic unit (A7/5) and lay down on clean dry cloth | Model 205.4 | AR77.37-P-1000LWR |
| Model 217.4 | AR77.37-P-1000LCA | ||
| Model 238.4 Protect vehicle interior against escaping hydraulic oil. Otherwise the vehicle interior can be contaminated. Do not disconnect hydraulic lines (1) and electrical connectors (2). |
AR77.37-P-1000LWP | ||
| 2 | Remove paneling from spare wheel well | ||
| 3 | Expose hydraulic lines (1) | ||
| Check | |||
| 4 | Prepare valve block (5) | AR77.37-P-4205-01LWR | |
Tester |
Fig 1 | ||
Record plug |
Fig 4 | ||
Adapter |
Fig 2 | ||
Valve block |
Fig 3 | ||
| 5 | Unscrew bolts (3) from connection plate (4) on soft top control hydraulic unit (A7/5) and push connection plate (4) in direction of arrow (A) | ||
| 6 | Unscrew bolts (6) on connection plate (7) from valve block (5) and push connection plate (7) in direction of arrow (B) | ||
| 7 | Connect diagnostic system and start test for hydraulic system | ||
| Model 205.4, 217.4 | AD00.00-P-2000-04B | ||
| Model 238.4 The test is menu-guided via the diagnostic system. |
AD00.00-P-2000-06LWO | ||
| 8 | Set up test according to specifications of menu-guided test | Connection scheme for pressure test Connect valve block (5) together with test lines (8), adapter (9) and test equipment (10) between vehicle hydraulic lines (1) and soft top hydraulic unit (A7/5). See corresponding connection diagram. |
AR77.37-P-4205-02LWR |
Tester |
Fig 1 | ||
Adapter |
Fig 2 | ||
Valve block |
Fig 3 | ||
| 9 | Move connection plate (4) opposite direction of arrow (A) and tighten bolts (3) to soft top control hydraulic unit (A7/5) | Model 205.4 Bolt, connection plate to hydraulic unit |
*BA77.37-P-1002-01D |
Model 217.4 Bolt, connection plate to hydraulic unit |
*BA77.37-P-1002-01C | ||
Model 238.4 Bolt, connection plate to hydraulic unit |
*BA77.37-P-1002-01E | ||
| 10 | Move connection plate (7) opposite direction of (arrow B) and tighten bolts (6) to valve block (5) | ||
| 11 | Perform test according to specifications of diagnostic system | The test is menu-guided via the diagnostic system. The test setup must be adapted according to the test step (operation steps 5 to 10). |
|
| 12 | Unscrew bolts (3) from connection plate (4) on soft top control hydraulic unit (A7/5) and push connection plate (4) in direction of arrow (A) | ||
| 13 | Disconnect valve block (5) together with test lines (8) from soft top control hydraulic unit (A7/5) | ||
| 14 | Remove test lines (8) from valve block (5), adapter (9) and test equipment (10) | ||
| Install | |||
| 15 | Insert hydraulic lines (1) into soft top control hydraulic unit (A7/5) | The hydraulic lines (1) are marked with numbers which coincide with the numbers on the connection plate (4). |
|
| 16 | Move connection plate (4) opposite direction of arrow (A) and tighten bolts (3) to soft top control hydraulic unit (A7/5) | Model 205.4 Bolt, connection plate to hydraulic unit |
*BA77.37-P-1002-01D |
Model 217.4 Bolt, connection plate to hydraulic unit |
*BA77.37-P-1002-01C | ||
Model 238.4 Bolt, connection plate to hydraulic unit |
*BA77.37-P-1002-01E | ||
| 17 | Ope soft top with switch and close | ||
| 18 | Check/correct oil level of hydraulic unit | AR77.37-P-3501LCA | |
| 19 | Install soft top control hydraulic unit (A7/5) | Model 205.4 | AR77.37-P-1000LWR |
| Model 217.4 | AR77.37-P-1000LCA | ||
| Model 238.4 | AR77.37-P-1000LWP |
SOFT TOP HYDRAULIC SYSTEM
| Number | Designation | Model 217.4 | |
|---|---|---|---|
| BA77.37-P-1002-01C | Bolt, connection plate to hydraulic unit | Nm | 4 |
SOFT TOP HYDRAULIC SYSTEM
| Number | Designation | Model 205.4 | |
|---|---|---|---|
| BA77.37-P-1002-01D | Bolt, connection plate to hydraulic unit | Nm | 4 |
SOFT TOP HYDRAULIC SYSTEM
| Number | Designation | Model 238 | |
|---|---|---|---|
| BA77.37-P-1002-01E | Bolt, connection plate to hydraulic unit | Nm | 4 |