6. Run the engine at idle speed and top up with · coolant until no more coolant flows into the

911 Carrera (996) Engine -Cooling 6. Run the engine at idle speed and top up with coolant until no more coolant flows into the cooling system when the engine is rewed moderately. (Coolant level now at lies lower edge of filler neck). The coolant temperature must not exceed 80 °c; proceed directly to the next work step if . necessary. 7. Close reservoir and warm engine up to operating temperature at a speed of -2500 rpm until the thermostat opens after approx. 10 minutes (coolant temperature 621_96 -90 °C). Check: The radiator supply lines and return 9. Insert the jumper (Part No. 964.610.184.00) lines in the front wheel housings must be hot. into relay sockets No. 20 and No. 22. 8. Forcibly engage both secondary fans at stage 2. To do this, use special tool 9235 (relay pliers) to pull the radiator fan relays No. 20 and No. 22 out of relay carrier 1 (on the left side in the driver's footwell). 315_97 10. Allow engine to run an additional 5 minutes at -2500 rpm. Every 30 seconds, briefly rev up the engine to -5000 rpm. Rpm surges are important for proper bleeding. 2~_97 19 -3