Remove/Install Valve Springs - AR05.30-P-3021MRI
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Engine 264 in model 205, 253
MODIFICATION NOTES
| 29.04.2019 | Method description adapted. | Operation steps 10 and 15 |
| Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Remove/install | |||
| 1 | Remove cylinder head (1). | AR01.30-P-5800MRI | |
| 2 | Remove hydraulic valve play compensation elements. | AR05.00-P-2011MRI | |
| 3 | Attach cylinder head (1) to assembly device (01). | Before commissioning, ensure that the counterholders (02) for the The cylinder head (1) will otherwise be damaged. |
Fig 2 |
| 4 | Attach assembly lever (03) with depressor (04) to sliding piece (05), place depressor (04) vertically on top valve spring retainer (2), and align sliding piece (05). | Fig 5 | |
| Fig 4 | |||
| 5 | Move air suspension bellows of the assembly device (01) with a lever (06) until they stand centrally over the combustion chamber of the respective valve (6). | Ensure that the air suspension bellows of the Otherwise, damage to the valve (6) will occur. |
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| 6 | Connect compressed air to assembly device (01) and open compressed air valve. | ||
| 7 | Compress valve spring (3) with assembly lever (03). | Fig 4 | |
| 8 | Remove valve keepers (4). | Fig 3 | |
| 9 | Loosen assembly lever (03) and relieve valve spring (3). | Fig 4 | |
| 10 | Remove upper valve spring retainer (2), valve spring (3) and lower valve spring retainer (7). | ||
| Check | |||
| 11 | Check valve spring (3) for damage. | If damage is present, ↓ Replace all valve springs (3). |
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| 12 | Check top valve spring retainer (2) and bottom valve spring retainer (7) for score marks, cracks, and pitting. | If damage is present, ↓ replace top valve spring retainer (2) and bottom valve spring retainer (7). |
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| 13 | Check valve stem for ridging and pitting. | If ridging is present, ↓ Deburr valve stem. If pittings are present ↓ replace all valves (6). |
AR05.30-P-3511MRI |
| 14 | Install in the reverse order. | ||
| 15 | Repeat process on all other valve springs (3). |