Problem
The pressure
gauge shows a
too low engine
GB
oil pressure and
the corresponding
warning light
comes on
The coolant temperature
warning
light comes
on
Output reduction
The battery warning
light comes
on
The oil pressure
warning light comes
on
English
Cause
Failure of pressure gauge
Oil level too low
Oil pump failure
Faulty sensor
Engine oil filter blocked
Coolant too low
Stucked overpressure valve of
the load plug
Water pump malfunction
Thermostat valve malfunction
Broken or worn belt
Clogged fuel filter
Presence of air in the fuel sup-
ply circuit
Injection pump malfunction
Dirty or faulty injectors
Clogged air filter
Engine overheating
Insufficient combustion air flow
The alternating current genera-
tor does not charge the battery
Engine oil pressure too low
70
D700-750E2_E3
Remedy
Check or replace the pressure
gauge. Apply to an authorised
workshop
Adjust the oil level (See "Engine
oil level con-trol")
Check or replace the pump. Ap-
ply to an authorised workshop
Check and, if appropriate,
replace the sensor. Apply to an
authorised workshop
Replace the engine oil filter
(See "Oil filter cartridge replace-
ment")
Adjust the engine coolant
level (See "Engine coolant level
check")
Replace the plug
Replace the pump. Apply to an
authorised workshop
Replace the valve. Apply to an
authorised workshop
Replace the belt (See "Belt
replacement")
Replace filter (See "Fuel filter
replacement")
Carry out bleeding (See "Fuel
supply circuit bleeding")
Replace the pump. Apply to an
authorised workshop
Replace the injectors. Apply to
an authorised workshop
Clean or replace the filter
Apply to an authorised work-
shop
Apply to an authorised work-
shop
Check and, if appropriate,
replace the alter-nating current
generator. Apply to an autho-
rised workshop
Apply to an authorised work-
shop
VM p/n 42432097F Ed.4 - 2015-05