Removing Hydraulic Valve For Camshaft Timing

→ Absolute cleanliness is essential when working on hydraulic valves.

1. Disconnect cable plug on hydraulic valve -1-  by pressing the clip and pulling off the cable plug.
   Fig 1: Identifying Solenoid Hydraulic Valve For Camshaft Timing

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2. Unscrew two M6 x 20 inner Torx screws -2-  at the valve holder and remove the holder along with the screws.
   Fig 2: Identifying Holder Of Solenoid Hydraulic Valve For Camshaft Timing

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   Information 

   • Handle the hydraulic valve with care; do not turn it at the valve tip or at the safety contact. 
   • A seal against leaks cannot be ensured if there is damage in the area of the retainer plate, therefore handle the pliers] Indicated with care  .
3. Carefully pull the hydraulic valve out of the cylinder head using special tool relay puller 9235  . Before using the puller, mask the valve body in fabric tape in order to prevent slippage or damage.
   Fig 3: Pulling Out Hydraulic Valve With Relay Puller

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4. Remove retainer plate with integrated seal -1-  from the valve.
   Fig 4: Identifying Retainer Plate

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   Information 

   • Handle the hydraulic valve with care; do not turn it at the valve tip or at the safety contact. 
   • A seal against leaks cannot be ensured if there is damage in the area of the retainer plate, therefore handle the pliers] Indicated with care. 
5. Check the valve body for damage in the sealing area of the retainer plates. If necessary, the valve must be replaced.
6. Pull the oil strainer -1-  out of the cylinder head bore using a bar magnet. Clean using solvent naphtha, check for damage and soiling, and replace if necessary. Pay attention to the installation position.
   Fig 5: Removing Oil Strainer Of Hydraulic Valve NVS

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