SAAB WIS ONLINE

(254-2519) Preheating the crankcase ventilation

TECHNICAL SERVICE BULLETIN
Bulletin Nbr: 254-2519
Date: ........... December 2004
Market: se separat lista
Preheating the crankcase ventilation

This bulletin advises of a new method and comes into immediate effect. The next edition of WIS will contain this information.

Cars affected

Saab 9-3 M05 with engine alternative Z19DTH.

Background

The following method applies to cars equipped with a preheating device for the crankcase ventilation hose. Only cars in cold diesel markets are equipped with a preheating device.

Parts required

See separate spare parts information.

Procedure

To remove




1. Remove the upper engine cover.


2. Detach the expansion tank cap and release any overpressure.

3. Remove the cable tie around the crankcase ventilation hose and the hose mountings.


4. Remove the hose clip from the hose to the turbo's intake manifold.

5. Remove the hose from the oil trap. Hold down the plastic ring and pull up the hose and the nipple.


6. Remove the hose clips and the hoses from the pipe to the coolant reservoir and the nipple on the intake manifold. Certain cars have narrower hoses with screw clips, others have thicker hoses with spring clips.


7. Remove the crankcase ventilation hose completely.


To fit


1. When replacing the hose to the oil trap, transfer the nipple and restriction in the hose from the old one to the new one.


2. Fit the crankcase ventilation hose.

3. Fit the hoses to the nipple on the intake manifold and to the pipe on the coolant reservoir.

Tightening torque, screw clips, 1.5 Nm (1 lbf ft).


4. Fit the hose to the oil trap.


5. Fit the hose to the turbo's intake manifold.


6. Fit the cable tie to the metal brackets around the wiring harness and the hose.

7. Pressure test the cooling system in accordance with WIS - 9-3 - Engine - Cooling system - Adjustment/Replacement - Cooling system, pressure testing and checking coolant level.

8. Fit the upper engine cover.



Warranty/Time Information

Failed Object: 25117

Time: 0.3 hr