Intake Connection With Electrical EGR Vacuum Regulator Solenoid Valve And Potentiometer
Special tools and workshop equipment required
- Wet and dry vacuum VAS 5128
- Brush with plastic bristles
Disassembling
-- Remove the intake connection together with the EGR potentiometer -G212- with the EGR vacuum regulator solenoid valve -N18-, refer to INTAKE CONNECTION WITH ELECTRICAL EGR VACUUM REGULATOR SOLENOID VALVE AND POTENTIOMETER .
-- Carefully remove the bolts -1- and the EGR potentiometer -G212- together with the EGR vacuum regulator solenoid valve -N18- -2- from the intake connection -4-
-- Use a brush with plastic bristles to clean the rusty surfaces on the exhaust gas return valve seat. Then remove loose rust with a cloth.
-- Line inner intake manifold with a lint free cloth to protect against soot particles.
-- Clean the exhaust gas return valve seat in the intake manifold using a brush with plastic bristles and a cloth. Make sure no rust particles get into the intake manifold.
-- Take the cloth out of the intake manifold and clean the intake manifold with a wet and dry vacuum VAS 5128 if necessary.
Assembling
-- Replace O-ring -3-.
-- Carefully mount the EGR potentiometer -G212- together with the EGR vacuum regulator solenoid valve -N18- -2- into the intake manifold seat -4- and tighten the bolts -1- to 10 Nm.