OMAL213158

Engine

Symptom	Problem	Solution
Engine hard to start or does not start	No fuel	Fill tank.
	Air in fuel system	Bleed air from fuel system
	Fuel pump does not work	Switch on ignition switch and listen to the pump noises to make sure the fuel pump is working.
	Weather too cold	Use cold-weather starting aid.
	Fuel filter contaminated	Change the filter
	Engine oil too viscous	Use oil of correct viscosity
	Faulty glow plugs	Have them checked by your dealer.

Engine knocking

Insufficient oil in engine

Top up oil.

Engine overheating	Insufficient coolant level	Fill radiator to prescribed level. Check cooling system for leaks.
	Loose or defective fan V-belt	Check belt and replace, if necessary.
	Cooling system contaminated	Drain, flush and refill cooling system.
	Oil cooler or protective grille contaminated	Clean oil cooler and grille.
	Defective thermostat	Remove and check thermostat

Engine oil pressure too low

Engine oil level too low

Top up oil.

High oil consumption	Oil of too low viscosity	Drain and top up with oil of correct viscosity.
	Leaking	Check oil lines and gaskets.

High fuel consumption	Unsuitable fuel	Use proper fuel.
	Incorrect valve adjustment	Have them checked by your dealer.
	Fuel injection nozzles soiled or damaged	Have them checked by your dealer.
	Injection time incorrectly set	Have them checked by your dealer.
	Clogged or soiled air filter	Clean the air filter

Engine emits black or gray exhaust smoke	Unsuitable fuel	Use proper fuel.
	Clogged air filter	Clean the air filter
	Fuel injection nozzles soiled or damaged	Have them checked by your dealer.

Engine emits white smoke	Unsuitable fuel	Use proper fuel.
	Engine too cold	Run engine until normal operating temperature is reached.
	Defective thermostat	Replace thermostat.
	Injection time incorrectly set	Have them checked by your dealer.
	Faulty glow plugs	Have them checked by your dealer.

OU12401,0001D21-19-20131015