Models 463.333 (M628)
Installation details of EGR positioners on models 463.333 (M628)
1a-1d - Cooling tract hoses; 2 - ATF filler neck; 2a-2c, 5a-5f - Bolts; 3, 4 - Brackets; 6a-6c - Sealing gaskets; 7 - Pneumatic line; 7a - Clamps; Y27/9 - Left EGR positioner; Y27/10 - Right EGR positioner
1. Drain the cooling system (see Chapter Routine care and maintenance).
2. Remove the air cleaner (see Section Servicing air intake tract components).
Information copied from the website: MercedesMan.ru
3. Remove the left and right air intakes with MAF sensors (see Section Servicing air intake tract components).
4. Disconnect the wiring from the EGR positioners (Y27/9 and Y27/10).
5. Remove the center section of the splash shield.
6. Disconnect the cooling tract hoses (1a-1d) from the EGR positioners.
7. Remove the bolts (2a, 2b and 2c) and move the ATF filler neck (2) to the side - do not remove the dipstick.
8. Remove the brackets (3 and 4) bolted to the EGR positioner and air distributor.
9. Loosen the clamp (7a) securing the pneumatic line (7).
10. Unscrew the bolts (5a-5f) and remove the positioner (Y27/9 and Y27/10).
11. Installation is carried out in the reverse order. Do not forget to replace the sealing elements.