Workshop Manuals Factory service & repair Alfa Romeo
01 Introduction and contents02 Technical data and maintenance03 Engine04 Clutch05 Gearbox06 Front axle and drive shafts07 Brakes08 Steering09 Suspension and wheels10 Heating and ventilation11 Bodywork12 Timing belt data sheets
Alfa Romeo 145/146 Factory Service Manual (1994-1999)02 · Technical data and maintenance
02 · Maintenance

Checking the level and changing the coolant

Make
Alfa Romeo
Model
145/146 Factory Service Manual
Year
1994–1999
Section
Maintenance › Checking the level and changing the coolant
Technical data and maintenanceChecking the level and changing the coolant
  • Burnt electrodes: overheating due to unsuitable fuel, defects in the valves;
  • High electrode wear: harmful additives in the fuel or in the oil, pinging in the cylinder head, overheating.
  • When installing, lubricate the thread with engine oil and tighten the spark plugs to the following torque:
25 ÷ 30 Nm
2.5 ÷ 3.1 kgm

CHECKING THE LEVEL AND CHANGING THE COOLANT

Checking

  1. With the engine cold, check that the level of the coolant in the header tank is between the MIN and MAX marks.
Coolant header tank with level marks 1

Draining and replenishing

  • Set the car on a lift.
  • Slacken and remove the header tank plug.

WARNING: Absolutely never remove the header tank plug when the engine is warm!

  • Raise the car.
  1. Slacken the two plugs under the crankcase and drain the coolant into a suitable recipient.

WARNING: The anti-freeze mixture used as coolant can harm the paintwork: therefore avoid any contact with painted components.

Coolant drain plugs 1 under the crankcase; tightening torque 17 ÷ 21 Nm (1.7 ÷ 2.1 kgm)

17 ÷ 21 Nm, 1.7 ÷ 2.1 kgm

  • Refit the drain plugs and check that all the fastening clamps of the engine cooling system hoses are firmly tightened.
  • Fill the header tank up to the MAX mark.

The type and indicative quantity of the coolant are given in the table below:

Alfa Romeo
Climafluid
Permanent -40°C
6.7 litres
  • Start the engine and bring it to normal operating temperature so that the thermostat opens to release the amount of residual air in the circuit.
  • With the engine cold, top up to the level indicated on the header tank.
  • Retighten the pressurised cap on the header tank.

WARNING: It is unwise to mix anti-freeze fluids of different types or brands!
Never use antirust additives: this might not be compatible with the anti-freeze in use!.

Parts & tools for this job For 1994 Alfa Romeo 145/146

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