check engine RENAULT ESPACE 2000 J66 / 3.G Technical Note 3426A User Guide
Page 44 of 52
Downloaded from www.Manualslib.com manuals search engine MANUAL GEARBOX
Lubricants
21
21-3
Lubricants
OIL CAPACITY : 
–Maximum: 2.8 l 
–Minimum: 2.3 l
OIL LEVEL
The oil level is adjusted using a locally manufactured 
dipstick, inserting into the oil filler hole (2) (see 
Technical Note 2579A).
To check the level it is necessary to remove the left 
hand front wheel and the left hand wheel arch cover. 
The oil can also be changed and refilled with the 
recommended quantity.
1 Drain plug
2 Fuel filler cap
WARNING: the fuel filler cap (2) should not be used to 
check the level by overfilling; using too much oil may 
damage the seals and overheat the oil. Marks to graduate:
–B: 22 ± 0.5 mm
–C: 30 ± 0.5 mm
95321M  
Page 48 of 52
Downloaded from www.Manualslib.com manuals search engine HEATING
Additional heating
61
61-3
TECHNICAL SPECIFICATIONS
The heater is fitted with an igniter appropriate for the 
vehicle fuel.
It operates in two power levels: 
–1˚)   Low speed:
●Power: 1600 Watts,
●Fuel consumption: 0.2 l/hour.
–2˚)   High speed:
●Power: 3300 Watts.
●Fuel consumption: 0.4 l/hour.
When the engine is started, the heater is operated at 
high speed; circulation of the coolant inside the 
exchanger is ensured by the vehicle coolant circuit.
A Temperature (˚C) 
B Minutes
–Range a: 
High speed.
–Range b: 
Low speed.
–Range c: 
Heater stop.
Coolant temperature measured inside the heater.SAFETY SYSTEMS
The system is fitted with several safety features; it cuts 
out:
–if the difference in coolant temperature read by the 
two internal  heater sensors reaches 15 ˚C,
–if the coolant temperature reaches 120 ˚C (different 
safety features than reading 85˚), 
–if the flame detector does not detect combustion, 
(notably the heater fuel pump),
–if the battery voltage is greater than 16 volts or less 
than 10 volts.
Other safety devices:
–when the heater does not light 90 seconds after the 
supply of fuel is started, the starting procedure is 
repeated. If, during the following 90 seconds the 
system still does not start, the emergency stop is 
engaged. 
–if the flame extinguishes during operation the starting 
procedure is repeated. If the heater does not start up 
in the following 90 seconds, the emergency stop is 
engaged.
–in the event of overheating (lack of coolant, 
incorrectly drained cooling circuit...), the overheating 
switch reacts, the fuel supply is stopped and the 
emergency stop is engaged. The heater can be 
restarted after the source of overheating has been 
eliminated and the heater has cooled sufficiently.
SWITCHING OFF
To temporarily disconnect the heater (operation with 
engine running in an enclosed space, noises when 
cold,...), disconnect the connector (15) (page 61-2). 
If possible, check that the heater engages after it is 
reconnected.
The main F49 (70 A) fuse on the engine 
intercommunication unit supplies the additional 
heating system.  
Page 51 of 52
Downloaded from www.Manualslib.com manuals search engine HEATING
Additional heating
61
61-6
MAINTENANCE
The principal maintenance operations on this 
assembly are:
–replacing the ignition spark plug (5),
–cleaning the filter at the pump inlet (13) (see 
page 61-2).
REMOVING - REFITTING COMPONENTS 
FUEL PUMP INLET FILTER (13) 
Remove the front bumper.
Rotate the pump (12) (see page 61-2) if it turns and 
loosen the union covering the filter (13). Clean or 
replace the filter if there is a combustion problem.
IGNITION SPARK PLUG
Disconnect and remove the heater without draining  the 
cooling circuit (use pliers Mot. 453-01).
Remove:
–the turbine cover (1),
–the control unit (9) and the cap (16),
–the spark plug (5) after disconnecting it.
FLAME DETECTOR 
Disconnect and remove the heater without draining the 
cooling circuit (use pliers  Mot. 453-01).
Remove:
–the turbine cover (1),
–the control unit (9) and the cap (16).
Disconnect the flame connector by pulling the flat 
terminals from the connector.
Remove the flame detector. 
(WARNING: fragile part)COMBUSTION CHAMBER (4) AND EXCHANGER (3)
Remove:
–the flame detector and spark plug, 
–the wiring harness fitted on the overheating 
detector (8) and the temperature sensor (7),
–the turbine support (1).
Remove the combustion chamber (4) and the 
exchanger (3) if necessary.
FAULT FINDING 
In case of a fault, check:
–if there is fuel in the tank,
–if the fuses are intact
–if the pipes, connections and electrical unions are 
intact,
–if the combustion air ducts or exhaust gas ducts are 
blocked (unblock them if necessary).
In the even of combustion with the production of soot, 
check:
–if the combustion air ducts or exhaust gas ducts are 
blocked (unblock them if necessary),
–if there is a deposit in the exchanger (3) or the 
combustion chamber (4); clean these if necessary,
–if the dosing pump flow is correct; 
To do this:
●remove the bumper,
●disconnect the electric pump inlet fuel pipe (12), 
from the side opposite the fuel filter (13),
●connect a pipe to the electric pump so that the flow 
can be collected in a glass at the same height as 
the heater,
●start the heater (if necessary, bridge the 
temperature sensor located in front of the battery 
screen). After approximately 40 seconds, the fuel 
arrives and begins to bleed the circuit. Switch off 
the ignition. Empty the glass and start again, 
collecting the stabilised flow for approximately 
30 seconds. Switch off the heater and measure the 
quantity of fuel collected. 
Normal flow: between 6.8 cm
3 and 7.8 cm3 for 
90 seconds of operation.