Cooling System V6: Other Saab 9-3 II

Procedures after disconnecting the battery

1. Clear diagnostic trouble codes in all systems. IMPORTANT: Some diagnostic trouble codes can be generated if there is a voltage drop. These diagnostic trouble codes can be ignored and will not be regenerated after deletion.
2. Set the clock as follows: 2.a. Turn the ignition key to the ON position. 2.b. Press CUSTOMIZE on SIDC (SID control panel). 2.c. Turn the INFO knob until the displays shows "Clock/Alarm". Press to confirm "OK". 2.d. Turn the INFO knob to "Set Clock". Press "OK". 2.e. Turn the INFO knob to "Manual" or "RDS adjust" and set the correct time. Press "OK".
3. Set the date as follows: 3.a. Turn the ignition key to the ON position. 3.b. Turn the INFO knob to "DATE". 3.c. Press the INFO knob until the display shows "YEAR 2000". 3.d. Turn the INFO knob to the correct year. Press to confirm "OK". 3.e. Turn the INFO knob to the correct month. Press "OK". 3.f. Turn the INFO knob to the correct date. Press "OK". IMPORTANT: Draw the customer's attention to the fact that all remote controls must be synchronized by placing the key/keys in the ignition lock. If this is not done, the remote control will not work.
4. Synchronize the remote control's code by inserting the key in the ignition switch. WARNING: The trap protection is not active until the window lifters have been calibrated after a power failure.
5. Cars with pinch protection: Program the pinch protection, see «CALIBRATION OF PINCH PROTECTION (2006)»(ref-275877-S29850865622007122900000) or «CALIBRATION OF PINCH PROTECTION (2007)»(ref-279934-S23310968722008021800000) .

Checks

Scheme 300

1. Remove the cap on the expansion tank.
2. Fit «83 96 160 PRESSURE TEST ADAPTER, COOLING SYSTEM, B207»(ref-275852-S29056256252007122900000) to the expansion tank.
3. Fit «30 05 469 ADAPTER, COOLING SYSTEM TESTER»(ref-275852-S31629170762007122900000) to adapter 83 96 160.
4. Connect «30 05 477 COOLING SYSTEM TESTER»(ref-275852-S06642319402007122900000) .
5. Pump a pressure of approx. 1 bar.
6. Check that the pressure in the system does not drop.
7. To find any leaks in the cooling system, continue to pressurize it while inspecting for leaks.
8. Release the pressure and remove the tools.
9. Fit the cap on the expansion tank.

Bleeding

Note. AC/ACC must be OFF.

Scheme 301

1. Fill the system to the MAX mark using 400 131 397 Coolant. Close the expansion tank cap (coolant is blended - equal parts coolant and water).
2. Connect an exhaust hose.
3. Start the engine and let it run for a short while at varying speeds.
4. Top up with coolant ant screw on the expansion tank cap.
5. Run the engine at varying speeds until the thermostat opens (radiator fan has started).
6. Turn off the engine and top up with coolant to MAX if necessary.

Expansion tank

Scheme 302

Scheme 303

Scheme 304

Scheme 305

1. Undo the cap on the expansion tank and release the pressure.
2. Raise the car.
3. Undo the right-hand side of the spoiler shield.
4. Place a receptacle under the car, connect a hose and drain the cooling system.
5. Lower the car.
6. Remove the upper engine cover.
7. Detach the bleeder hose and the turbocharger cooling return hose from the expansion tank.
8. Unplug the upper connector of the engine control module.
9. Unplug the atmospheric pressure sensor connector (539).
10. Detach and move aside the cable duct.
11. Detach and move aside the plate bracket from the intake manifold.
12. Detach the coolant hose with quick coupling from the expansion tank.
13. Move up the expansion tank and unplug the level sensor connector.
14. Remove the expansion tank.

Scheme 306

Scheme 307

Scheme 308

1. Plug in the level sensor connector and fit the expansion tank.
2. Attach the coolant hose with quick coupling to the expansion tank.
3. Fit the plate bracket to the intake manifold.
4. Fit the cable duct.
5. Plug in the atmospheric pressure sensor connector (539).
6. Plug in the upper connector of the engine control module.
7. Attach the bleeder hose and turbocharger cooling return hose to the expansion tank.
8. Fit the upper engine cover.
9. Carry out «Cooling System, pressure testing»(ref-275856-S41791158062007122900000) .
10. Top up the coolant. See «BLEEDING AND CHARGING THE COOLING SYSTEM»(ref-275856-S10550426312007122900000) , B284.
11. Replace the upper engine cover.
12. Fit the right-hand side of the spoiler shield.

Lower radiator hose

Scheme 309

Scheme 310

Scheme 311

1. Undo the expansion tank cap and release the pressure.
2. Remove the «SPOILER SHIELD, FRONT»(ref-275838-S05457380322007122900000) .
3. Place a receptacle under the car, connect a hose and drain the cooling system.
4. Remove the lower radiator mounting on the left side. Detach the radiator hose from the radiator.
5. Lower the car.
6. Remove «BATTERY (2006)»(ref-275860-S17428070512007122900000) or «BATTERY (2007)»(ref-279916-S20608419722008021800000) and «BATTERY COVER, BOTTOM, B284E (2006)»(ref-275860-S10461848692007122900000) or «BATTERY COVER, BOTTOM (2007)»(ref-279916-S39619585692008021800000) .
7. Detach the turbocharger delivery hose from the turbocharger.
8. Detach the radiator hose from the thermostat housing pipe.

Scheme 312

Scheme 313

1. Attach the radiator hose to the thermostat housing pipe.
2. Attach the turbocharger delivery hose to the turbocharger. Twist the recess on the hose until it aligns with the marking on the turbocharger pipe connection.
3. Fit the «BATTERY COVER, LOWER SECTION (2006)»(ref-275860-S00947484242007122900000) and «BATTERY COVER, BOTTOM (2007)»(ref-279916-S39619585692008021800000) and «BATTERY (2006)»(ref-275860-S17428070512007122900000) or «BATTERY (2007)»(ref-279916-S20608419722008021800000) .
4. Raise the car.
5. Fit the radiator hose with clamp to the radiator.
6. Fit the lower radiator mounting on the left side. Tightening torque 47 Nm (35 lbf ft)
7. Fit the «SPOILER SHIELD, FRONT»(ref-275838-S05457380322007122900000) .
8. Lower the car.
9. Pressure test the cooling system, see «Cooling System, pressure testing»(ref-275856-S41791158062007122900000) .
10. Top up coolant. See «Bleeding And Charging The Cooling System»(ref-275856-S10550426312007122900000) (B284).
11. If the battery has been disconnected, see «Procedures after disconnecting the battery»(ref-275856-S36517051262007122900000) .

Idle speed compensation

In order to maintain a constant idling speed when the radiator fans are turned on or off, there is a 3 second delay before the fans are engaged. During this time, the engine control module will start to compensate for the increased load so that the idling speed will not drop when the radiator fans start.

Current consumption

Approximate radiator fan current consumption at different speeds

RADIATOR FAN CURRENT CONSUMPTION REFERENCE

The maximum current for speed 4 must not exceed 65A.

Coolant temperature

The coolant temperature gauge provides the driver with information on the engine coolant temperature.

The coolant temperature gauge is supplied with power and is controlled by the main instrument unit.

The engine control module sends continuous information on the bus concerning the coolant temperature.

The cooling temperature gauge scale is divided by 5 fixed points. The main instrument is programmed to guide the gauge needle to the fixed points at specified temperatures in order to give stable indication at normal coolant temperatures.

The following break points are programmed in the main instrument unit (factory setting)

COOLANT TEMPERATURE SPECIFICATIONS

Main task

To maintain an even engine temperature and also to protect against overheating.

Scheme 314

Electrical fan motor.

Connection

ELECTRICAL FAN MOTOR REFERENCE

Scheme 315

Informs the control module of current coolant temperature.

The value from the temperature sensor is used for

1. controlling the radiator fans
2. determining injection duration during preinjection
3. determining injection duration during starter motor cranking
4. after-start enrichment
5. determining when closed loop should be engaged
6. correcting idling speed.

Type

The temperature sensor is of NTC type.

Scheme 316

DESCRIPTION CHART

Scheme 317

Scheme 318

To control the radiator fans.

Scheme 319

Relay box containing relays and resistors.

DESCRIPTION CHART

power supply

Scheme 320

Scheme 321

Left radiator fan motor (37LH)

Location: on left side of the radiator

Scheme 322

Right radiator fan motor (37RH)

Location: on right side of the radiator

Scheme 323

Coolant temperature sensor (202)

Location

Z18XE

on the engine's top right front corner

Scheme 324

Z19DT

on the engine's top left front corner

Scheme 325

Z19DTH

on the engine's top left front corner

Scheme 326

SID (541)

Location: at the top of the instrument panel

Scheme 327

Control module, Motronic E9, B284, switch A, engine (608A)

Location at the top of the rear cylinder bank, lower switch

Scheme 328

Control module, Motronic E9, B284, switch B, (608B)

Location: at the top of the rear cylinder bank, upper switch

Scheme 329

Relay unit, radiator fans (706a)

Location: on top of the radiator fan cover

Scheme 330

Scheme 331

Scheme 332

Fuses for V6 engine radiator fans

Fuse holder for two maxi fuses, blade type.

The fuse holder is integrated in the adapter harness to the engine's wiring harness. The high-speed fan is connected across the upper fuse and the low-speed fan across the lower.

ENGINE RADIATOR FANS SPECIFICATIONS

Scheme 333

List of components

COMPONENTS LISTS

COMPONENTS LISTS

Crimp J307, adapter harness ME9

COMPONENTS LISTS

Scheme 334

Location: On the side of the LH structural member near the connector console

Connected components

COMPONENTS SPECIFICATIONS

Scheme 335

Coolant

COOLANT SPECIFICATIONS

COOLING SYSTEM SPECIFICATIONS

Engine, radiator fan (37LH, 37RH), B284

POWER SUPPLY REFERENCE

Relay unit, radiator fan (706D), B284

POWER SUPPLY REFERENCE

Current values

CURRENT VALUES REFERENCE

General data

TEMPERATURE CHART

Scheme 336

Scheme 337

EN-47644

Used together with 83 96 152 Centering tool, powertrain .

Group: Basic Engine

SPECIAL TOOL REFERENCE

Radiator fan system, B284

Note. Also see COOLING FAN (2006) or COOLING FAN (2007) wiring diagram.

Scheme 338

COMPONENTS LIST No. Name Location Illus. Components 1 Battery 37LH Left radiator fan motor, on left side of the radiator 37RH Right radiator fan motor, on right side of the radiator 202 Coolant temperature sensor, below oil pressure switch on front cylinder bank at exhaust manifold 541 SID, on top of instrument panel 608 Control module, V6 petrol at the top of the rear cylinder bank A B 706a Relay unit, radiator fans, on top of the radiator fan cover 748 Fuse holder, radiator fans, at the front of the battery cover side Crimp connections J295 Approx. 120 mm from branching of engine control module toward engine control module Crimp J295, engine harness ME9 J306 Approx. 380 mm from battery disconnector Crimp J306, adapter harness ME9 J312 Approx. 150 mm from branching of battery toward engine control module Crimp J312, adapter harness ME9 Grounding points G2 On the side of the left structure strut by the connector bracket

Scheme 339

Scheme 340

Scheme 341

Scheme 342