Renault Megane 3 generations were produced in 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 and 2016. During these 9 years, the car was restyled 2 times. The most common body styles are station wagon and 5-door hatchback, although there are also coupes and sedans on the market (under a separate brand Renault Fluence ). We will describe the purpose of the relays and fuses in Renault Megane 3, show where the blocks are located and their diagrams.

Blocks in the cabin

Main block

It is located in the instrument panel, on the left.

No.APurpose
F1reserve
F2reserve
F310Acigarette lighter
F410Arear socket
F510Asocket in the luggage compartment
F610Aaudio system
F75AElectric heated exterior mirrors
F810Aglass washer, door open alarm
F930AAutomatic parking brake
F1010Ainstrument panel shield
F1125Aelectric seat, steering column switches
F1220AElectric heated passenger seat
F13reserve
F1425AElectric window lift front passenger door
F155ABrake light switch, brake pedal position sensor, ABS/ESP control unit
F1625AElectric window lifter right rear door
F1725AElectric window lift left rear door
F1810Aglove compartment light, left luggage compartment light, door lights, sun visor mirror lights, rain sensor
F1910Aclock, outside temperature indicator, seat belt reminder, audio system jack
F205Aair conditioning control unit
F213ASun visor mirror lights
F223Ainterior lighting lamps, rain and light sensor
F2320Atrailer connector
F2415ACentralized Electrotechnical Complex (CECS)
F253Ainterior rear view mirror
F2610Anavigation system, CD changer, audio system
F2720Aaudio system, parking brake control unit
F28reserve
F29reserve
F3015AUCHBS, direction indicators
F3110ACentralized Electrotechnical Complex (CECS)
F3230AElectric window lift driver’s door
F3325ACentral locking system, central locking
F3430APassenger Door Multiplex Network ECU
F3515Aclock, outside temperature indicator, phone display
F3615Adiagnostic connector, horn relay, alarm control unit, siren
F3710Abrake lights, electrical equipment control unit
F3830AAutomatic parking brake
F3930AConvertible roof ECU
F4040AElectric fan of the air conditioning system
F4125AElectric sunroof drive
F4240Arear window heating
Relay
RA70Apower relay (+battery) with shutdown delay (without power shutdown at startup)
R.B.70Apower relay (+battery) with shutdown delay (with power shutdown at startup)
RC40Arear window heating relay
R.D.20Ahorn relay

The front cigarette lighter is controlled by fuse number 3, and the rear socket is controlled by fuse number 4, rated at 10A.

Additional relays

A separate “+” relay with the engine running at 40A can be located under the passenger seat. Thus, a pair of additional heating relays can be located on the central console heater unit.

Blocks under the hood

Protection and switching unit

The unit is located in the engine switching unit (in the engine compartment).

No.ADescription
110ASide lights (right headlight, right rear light, headlights), license plate lights, cigarette lighter light, electric window switch light, audio system, navigation system control unit, multimedia system keypad
210ASide light (left headlight, left rear light), left tailgate light
315AHeadlight washer pump
420AFog lights
510AHigh beam (left headlight)
610AHigh beam (right headlight)
715ADiagnostic connector, rear window heating relay, automatic transmission mode selector, electric headlight corrector, gas discharge lamp control unit, additional heater control unit, speed limiter, automatic parking brake, automatic parking system control unit, dimming mirror in the passenger compartment
830AABS, ESP control unit
930AFront windshield wiper
1010AAirbag control unit
1120ANot used
127.5AGearbox ECU
1325AEngine management system
1415AOxygen Concentration Sensors – Heating
1520AGearbox ECU
165ABrake lights, electrical control unit, electric power steering
1710AAutomatic transmission mode sensor, electric headlight corrector, reverse light relay
1815AElectrical equipment control unit
1930AStarter
20Not used
2120AFuel module, ignition coils, ECU of the liquefied gas fuel system
2210AAir conditioning compressor electromagnetic clutch
235AInjection system ECU
2420ALow beam (left headlight), electric corrector
2520ALow beam (right headlight), electric corrector
26Not used

Fuses 24, 25 and 26 on the protection block may not be removable.

Block 2

It is located in the switching unit in the engine compartment under the protection and switching unit.

No.ADesignation
F180Aimmersion heater control unit
F270Apre-heating unit
F3Not used
F480Aimmersion heater control unit
F560A / 40Aelectric fan relay
F620AFuel heater
F7Not used
F830Aelectric fan relay
F9Not used
Relay
ANot used
BFuel heater relay
CReverse light relay
DNot used

Blocks near the battery

Battery disconnect unit (1)

No.APurpose
F1190AStarter
F250Afuse box and relay in the passenger compartment
F380Afuse and relay box (control and switching unit) in the engine compartment 1, fuse and relay box in the passenger compartment
F4300A / 190Afuse and relay box in engine compartment 2 / generator
F580AElectric Power Steering
F635AElectronic engine control unit (ECU) / fuse and relay box (control and switching unit) in the engine compartment 1
F75Afuse and relay box (control and switching unit) in the engine compartment 1

High Power Fuse Block(2)

No.ADescription
170Aadditional interior heater
280Afuse box and relay in the passenger compartment
380Afuse box and relay in the passenger compartment
480Afuse and relay box (control and switching unit) in the engine compartment 1, fuse and relay box in the passenger compartment
530Aadditional heater
650AABS ECU with ESP

The engine cooling system electric fan relay may be located next to the electric fan.