Recommendation. You can check the operation of the fuel pressure regulator without removing it from the car (see "Fuel Rail - Operating Pressure Check"). If you suspect a malfunction of the pressure regulator, it must be replaced.
Removing
1. Remove the fuel pump module (see "21124 engine fuel pump fuel module (1,6i) - removal, installation, replacement").
2. Raise the cover of the fuel pump fuel module and disconnect the wire tip from the fuel pressure regulator (see points 3 and 4
"21124 engine fuel pump fuel module (1,6i) - replacement of the fuel gauge sensor").
3. Using a slotted screwdriver, pry off and remove the spring retainer of the fuel pressure regulator.
4. Remove the fuel pressure regulator from the cover of the fuel pump fuel module.
Installation
We install a new fuel pressure regulator on the car and all the removed parts in the reverse order, after applying a thin layer of engine oil to the o-rings.