2003-2008 Renault Megane SUV Practical advice -> Operating Faults User Manual
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Practical advice -> Operating Faults for Your Renault Megane SUV Second Generation (2003-2008)

OPERATING FAULTS  
The following hints will enable you to troubleshoot quickly, albeit temporarily. For safety reasons you should always  
contact a RENAULT Dealer as soon as you can.  
Use of the RENAULT Card  
CAUSES  
REMEDIAL ACTION  
• The RENAULT Card does not lock  
or unlock the doors.  
Vehicle  
located  
in  
a
high  
Use the emergency key (refer to the  
“Spare key” in Section 1).  
electromagnetic radiation zone.  
Discharged battery.  
Use of equipment operating on the  
same frequency as the card (car  
phone, etc.).  
Stop using the devices or use the  
emergency key (refer to “Spare key” in  
Section 1).  
Worn out card battery.  
Replace the battery.  
5.30  
OPERATING FAULTS (continued)  
When starter is activated  
CAUSES  
REMEDIAL ACTION  
• There is no response, the warning  
lights fail to light up and the starter  
does not operate.  
Battery  
lead  
disconnected  
or  
Check battery terminals: scrape and  
clean if oxidised and re-tighten.  
terminals oxidised.  
Flat battery.  
Connect another battery to the faulty  
battery.  
Battery unserviceable.  
Replace battery.  
Do not push the vehicle if the steering  
column is locked.  
• Warning light bulbs go dim and  
starter turns very slowly.  
Battery leads not correctly tightened,  
battery terminals oxidised.  
Check battery terminals: scrape and  
clean if oxidised and re-tighten.  
Flat battery.  
Connect another battery to the faulty  
battery.  
5.31  
OPERATING FAULTS (continued)  
When starter is activated  
CAUSES  
REMEDIAL ACTION  
• The engine will not start.  
Starter conditions not fulfilled.  
Refer to “Starting and stopping the  
engine” in Section 2.  
The RENAULT Card does not work.  
Insert the card in the card reader in  
order to start the engine.  
Refer to “Starting and stopping the  
engine” in Section 2.  
• The engine is difficult to start in  
damp weather or after washing.  
Poor ignition, ignition system damp.  
Dry spark plug leads and ignition coil.  
• The engine is difficult to start when  
warm  
Faulty carburation (bubbles of  
vaporised fuel in the circuit).  
Let the engine cool down.  
Poor compression.  
Contact a RENAULT Dealer.  
• The engine cannot be switched off.  
Electronic fault.  
Press the starter button quickly five  
times.  
• The steering column remains  
locked.  
Steering wheel locked.  
Move the steering wheel while  
pressing the engine start button (see  
“Starting the engine” in Section 2).  
5.32  
OPERATING FAULTS (continued)  
On the road  
CAUSES  
REMEDIAL ACTION  
• Abnormal white smoke from the  
exhaust.  
Mechanical fault: damaged cylinder  
head gasket.  
Stop the engine.  
Contact a RENAULT Dealer.  
• Vibrations.  
Tyres not inflated to correct pressures,  
incorrectly balanced or damaged.  
Check tyre pressures. If this is not the  
problem, have them checked by a  
RENAULT Dealer.  
• Coolant boiling in the expansion  
bottle.  
Mechanical fault: cylinder head  
gasket blown, faulty coolant pump.  
Stop the engine.  
Contact a RENAULT Dealer.  
Engine cooling fan not working.  
Check appropriate fuse, otherwise  
contact a RENAULT Dealer.  
5.33  
OPERATING FAULTS (continued)  
On the road  
CAUSES  
REMEDIAL ACTION  
• Smoke under the bonnet.  
Short circuit.  
Stop, turn the ignition off, disconnect  
the battery.  
Coolant circuit fault.  
Contact a RENAULT Dealer.  
• The oil pressure warning light  
comes on:  
- while turning or braking,  
The level is too low.  
Add engine oil (see “Topping  
up/filling with oil” in Section 4).  
Contact the nearest RENAULT Dealer.  
Stop: contact a RENAULT Dealer.  
- at idle speed,  
- is slow to go out or remains lit up  
on acceleration.  
Low oil pressure.  
Loss of oil pressure.  
• The engine lacks power.  
Clogged air filter.  
Fuel supply faulty.  
Replace the cartridge.  
Check the fuel level.  
Faulty  
spark  
plugs,  
incorrect  
Contact a RENAULT Dealer.  
electrode gaps.  
• Unstable idle speed or the engine  
stalls.  
Poor compression (spark plugs,  
ignition, air leak).  
Contact a RENAULT Dealer.  
5.34  
OPERATING FAULTS (continued)  
On the road  
CAUSES  
REMEDIAL ACTION  
• Steering wheel hard to turn:  
- assistance overheating,  
- weak or old battery.  
Leave to cool.  
Recharge or replace the battery.  
• The engine overheats. The coolant  
temperature indicator light comes  
on (or the gauge needle moves into  
the red zone).  
Coolant pump: belt stretched or  
broken.  
Engine cooling fan not working.  
Stop the vehicle and switch off the  
engine. Contact a RENAULT Dealer.  
Coolant leaks.  
Check the condition of hoses and  
clips.  
Check the expansion bottle: it should  
contain coolant. If it does not, top it  
up (once it has cooled). Take care not  
to scald yourself. This action is only  
temporary: contact your RENAULT  
Dealer as soon as possible.  
Radiator: Never fill a hot radiator with cold coolant if a considerable quantity has been lost. After any operation  
on the vehicle which has involved even partial draining of the cooling system, it must be refilled with a new  
mixture prepared in the correct proportions. Reminder: only products approved by RENAULT's Technical  
Department may be used for this purpose.  
5.35  
OPERATING FAULTS (continued)  
Electrical equipment  
CAUSES  
REMEDIAL ACTION  
• The wipers do not work.  
Wiper blades stuck.  
Free the blades before using the  
wipers.  
Broken rear screen wiper fuse.  
Contact a RENAULT Dealer.  
Replace it.  
Broken rear screen wiper fuse  
(intermittent, park position).  
Motor faulty.  
Contact a RENAULT Dealer.  
Contact a RENAULT Dealer.  
Replace the bulb.  
• The wiper does not stop.  
Faulty electrical controls.  
Blown bulb.  
• Direction indicators flashing more  
quickly.  
• The indicator  
lights do  
not work.  
On one side only:  
- blown bulb,  
Replace the bulb.  
- faulty connection to earth,  
Find the earth wire which is attached  
to a metal body part, scrape the end of  
the earth wire and re-attach it  
carefully.  
On both sides:  
- fuse blown,  
Replace the fuse.  
- faulty flasher sensor.  
To replace, contact  
Dealer.  
a
RENAULT  
5.36  
OPERATING FAULTS (continued)  
Electrical equipment  
CAUSES  
REMEDIAL ACTION  
• The headlights  
no longer operate.  
One only:  
- bulb blown,  
Replace it.  
- disconnected wire or incorrectly-  
positioned connector,  
Check and reconnect the wire or  
connector.  
- faulty earth connection.  
See above.  
Both:  
- if the circuit is fused.  
Check and replace if necessary.  
• The headlights do not switch off.  
• Traces of condensation in the lights.  
Faulty electrical controls.  
Contact your RENAULT Dealer.  
This is not a fault. The presence of  
traces of condensation in lights is a  
natural phenomenon linked to  
variations in temperature.  
These traces soon disappear when the  
lights are switched on.  
5.37  

Related Topics

Practical advice
Emergency Spare Wheel / Tool Kit Hubcaps / Wheels / Changing a Wheel Tyres (Safety, Pressures, Winter use) Headlights (Halogen, Xenon, Changing bulbs) Rear Lights / Side Lights (Changing bulbs) Interior Lighting (Changing bulbs) Fuses Battery: failure / jump starting RENAULT Card: battery Fitting a Radio / Accessories Wiper Blades Towing (Breakdown and Attachments)

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