MR 700
49
Ed. 3 - 2012_11
English
The pressure gauge-
shows a too low engineoil
pressure and the cor-
responding warning light
comes on
Failure of pressure gauge
Check or replace the pressure
gauge. Apply to an authorised
workshop
Oil level too low
Adjust the oil level (see “Engine
oil level con-trol”)
Oil pump failure
Check or replace the pump. Apply
to an authorised workshop
Faulty sensor
Check and, if appropriate, replace
the sen-sor. Apply to an autho-
rised workshop
The coolant temperature
warning light comes on
Coolant too low
Adjust the engine coolant level
(see “Engine coolant level check”)
Stucked overpressure valve of
the load plug
Replace the plug with 1 bar valve
Worn or faulty seawater pump
impeller
Replace the impeller. Apply to an
authorised workshop
Freshwater pump failure
Check the pump and, if neces-
sary, replace it. Apply to an autho-
rised workshop
Broken or worn belt
Replace the belt (see “Belt
replacement”)
Excessive noise
Dirty or faulty injectors
Clean or replace injectors. Apply
to an authorised workshop
The injection pump is set incor-
rectly or is faulty
Adjust the pump or replace it.
Apply to an authorised workshop
The injection pump timing is not
adjusted correctly
Adjust pump timing. Apply to an
authorised workshop
Output reduction
Clogged fuel lter
Replace lter (see “Fuel lter
replacement”)
Presence of air in the fuel supply
circuit
Carry out bleeding (see “Fuel
supply circuit bleeding”)
The injection pump is set incor-
rectly or is faulty
Adjust the pump or replace it.
Apply to an authorised workshop
Dirty or faulty injectors
Clean or replace injectors. Apply
to an authorised workshop
Clogged air lter
Clean or replace the lter (see
“SInlet air l-ter replacement”)
Clogged seawater pump impeller
Clean the impeller. Apply to an
authorised workshop
Insufcient accelerator stroke Adjust the accelerator stroke
The battery warning light
comes on
The alternating current generator
does not charge the battery
Check and, if appropriate, replace
the alternat-ing current generator.
Apply to an authorised workshop
The oil pressure warning
light comes on
Engine oil pressure too low Apply to an author
Problem Cause Remedy
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