Fuel Pressure Regulator Diaphragm, Replace
 Important! Fuel system is pressurised. Depressurise - for this, remove fuel pump relay (arrow) - installation position behind lower right A pillar panelling. Start engine for at least 5 seconds - fuel pressure reduction. Fuel escapes - observe safety precautions!
 Remove, Disconnect Remove air cleaner cover and air intake hose. | 
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Remove, Disconnect Unbolt pressure regulator cover, remove spring and diaphragm. If the pressure regulator cover is loosened, the diaphragm must be replaced.
 Install, Connect Insert diaphragm correctly into groove of throttle valve housing. Fit spring and cover - 3 Nm / 2 lbf. ft. Insert bolts with bolt locking compound (red). Installation time max. 10 min. | 
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Install, Connect Install air cleaner cover and air intake hose. Install fuel pump relay (see illus., arrow). Install A pillar panelling.
 Tighten (Torque) Air cleaner cover to throttle valve injection housing - 4 Nm / 3 lbf. ft. |
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