Intake Manifold: Testing and Inspection

Checking The Intake-air Distributor For Leaks

Tools







Technical values







Preliminary work







1. Remove pressure pipe -1-.
2. Pull off original rubber sleeve on the throttle body by opening the screw-type clamp.

Checking

Checking intake-air distributor for leaks







1. Slide the rubber sleeve from the special tool stopper 9264/6 onto the throttle body and secure in place with the original screw-type clamp.







2. Slide the stopper -1- into the rubber sleeve and tighten the screw-type clamp as required.
3. Build up overpressure of 0.5 bar. Larger leaks are very easy to hear once the pressure has built up; smaller leaks can be made visible using leak-locating spray.
4. Remove special tool stopper 9264/6.
5. Carry out the required repair work to seal any leaks you find.

Subsequent work

1. Fit original rubber sleeve on the throttle body. Tighten screw-type clamp.
- Tightening torque: 2.5 Nm (2.0 ftlb.)







2. Fit pressure pipe -1-.