Installing High-Pressure Fuel Injector

→ Thoroughly clean connection points and adjacent areas before loosening them. If the engine is very dirty, wash it before starting disassembly work.

→ Lay removed parts on a clean surface and cover them. Do not use fibre-shedding cloths.

→ Carefully cover components or seal them if repair work will not be carried out immediately. Place rubber caps on connections. Seal intake openings with film or adhesive tape.

→ Only install clean parts. Do not take spare parts out of the packaging until just before installation.

→ Never use compressed air when the system is open. Do not move the vehicle.

→ Use clean tools without burrs.

→ Make sure not to leave any scores or scratches when cleaning.

1. Clean the bore in the cylinder head using the nylon brush -T10133/4-  .
   Fig 1: Cleaning Bore For Fuel Injector

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   Information 

   The combustion chamber sealing ring widens out as you slide it onto the fuel injector. It must therefore be closed in again in two steps after fitting.

2. Place mounting cone -T 10133/5-  with the new combustion chamber sealing ring -1 -  from the repair kit onto the fuel injector -2-  .
   Fig 2: Identifying Mounting Cone

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3. Using the assembly sleeve -T 10133/6-  , slide the combustion chamber sealing ring as far as possible onto the mounting cone -T 10133/5-  .

   Turn the assembly sleeve -T 10133/6-  around and slide the combustion chamber sealing ring into the sealing ring groove.

   Fig 3: Turning Assembly Sleeve

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4. Press the calibrating nozzle -T10133/7-  with a slight rotary movement (approx. 180°) as far as it will go onto the fuel injector.

   Pull the calibrating sleeve off again by turning it in the opposite direction.

   Fig 4: Identifying Calibrating Sleeve (T10133/7)

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5. Press the calibrating nozzle -T10133/8-  with a slight rotary movement (approx. 180°) as far as it will go onto the fuel injector.

   Pull the calibrating sleeve off again by turning it in the opposite direction.

   Fig 5: Identifying Calibrating Sleeve (T10133/8)

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6. Assembling the individual parts of the fuel injector.
   Fig 6: Exploded View Of Fuel Injector Assembly

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   1. Fuel injector
   2. Spacer ring
   3. O-ring/coat with clean engine oil 
   4. Support ring
   5. Sealing washer, top/observe installation position 
   6. Sealing washer, bottom/observe installation position 
   7. Circlip/do not overstretch 
   8. Combustion chamber seal/must not be oiled! 
7. Use the assembly driver -T10133/9-  to slide the fuel injector as far as it will go into the bore in the cylinder head.
   Fig 7: Identifying Driver For Fuel Injector Assembly

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8. Subsequent installation is performed in reverse order. Please note the following:
   1. 8.1. The electric connection for the fuel injector must engage in the cut-out designed for this purpose in the cylinder head.