The 2nd generation Skoda Octavia is based on the A5 platform . It was produced in 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 and 2013 with station wagon and liftback bodies, with both petrol and diesel engines. In this article, we will provide a description of the fuse boxes and relays of the Skoda Octavia A5 (MK2) , their locations, photographs and diagrams. Separately, we will highlight the fuses responsible for the cigarette lighter and washer. In conclusion, we will offer a complete electrical diagram of the car for download.

The number of elements in the block and their purpose may differ from those shown and depend on the year of manufacture, vehicle equipment level and country of delivery.

Blocks in the cabin

Fuse box

It is located at the end of the instrument panel behind a protective cover. On the back of which there should be an up-to-date description of the fuses in the form of a brochure.

No.ADescription
110ADiagnostic connector, engine control unit, fuel pump
25AABS, ESP control unit
35AAirbags
45AHeater, air conditioner, reversing light
55AElectric headlight corrector
65AInstrument cluster, automatic transmission control unit, electric power steering control unit, parking assistance system
7Reserve
8Reserve
9Reserve
10Reserve
11Reserve
1210ACentral locking control unit
1310AExternal lighting control unit, brake lights
145AAutomatic transmission control unit, gear selector lock
157.5AInterior Lighting Control Unit
1610AClimate control system
17Additional equipment
185AParking assistance system sensors
195ATowing hitch control unit
205AHill Start Assist
21Reserve
2240AClimate control fan
2330AFront window lift
2415Acigarette lighter fuse
2525/ 30ARear window heating. Additional heater
2620APower socket in the trunk
2715AFuel pump relay, fuel injectors
28Additional equipment
2910AEngine control unit
3020AAutomatic transmission control unit
3120ABrake system vacuum pump
3230ARear door window lifts
3325AElectric sunroof
3420AComfort function control unit
355AAnti-theft system
3620AHeadlight washers
3720AHeated front seats
3830ARear seat heating
39Reserve
4040AHeating system fan
4115ARear door window wiper
4215AWindscreen washer
4315ATowing hitch
4420ATowing hitch
4515ATowing hitch
465AHeating of windshield washer jets
475AAdditional heater relay
48Reserve
495ACentral light switch

The fuse number 24 for 15A is responsible for the cigarette lighter. And for the windshield washer, number 42, also rated at 15A.

Relay block

It is located under the instrument panel itself, behind the trim panel.

No.Designation
B4supply voltage relay (30)
B5rear window heating relay
B6horn relay
B7relay -1- windshield washer pump
B8relay -2- windshield washer pump
B9switching relay for contact X

In this version, the central control unit is also located here.

Relay block under the central control unit

No.Purpose
1Supply voltage relay (15) -J329-
2Rear window heating device relay -J9-
3supply voltage relay (50) -J682- / starter relay 1 -J906-
4Fuel pump relay (pressure generation in the fuel system) -J643- (for engine letter designations BUD, CGGA, BSE, BSF, CMXA, CHGA) / fuel pump relay -J17- (for diesel engines)
5switching relay for contact X -J59-
No.Purpose
D1Independent heater relay -J485- (for vehicles with independent additional heater) / relay for low heating output -J359- (for vehicles with resistive additional heater (RIH))
D2.1Horn relay -J4-
D2.2fuel pump relay (for engine letter designations BUD, CGGA, BSE, BSF, CMXA, CHGA) / — additional fuel pump relay -J832- (for engine letter designations CLCA, CLCB, CFHF, CFHC, CEGA)
D3Relay for high heating capacity -J360- (for vehicles with additional resistive heater (RTS))
D3.1Fresh air intake fan relay -J13- (for vehicles with independent auxiliary heater)
D3.2Additional heater fuel pump relay -J749- (for vehicles with independent additional heater)
D4starter relay 2 -J907-
D5.1Headlight washer relay -J39-
D5.2Relay for heating element -J925- (for engine code CAYC)

The stove does not work? Some models have a separate thermal fuse for the stove.

Block under the hood

It is located on the left side of the engine compartment under the protective cover and consists of 2 blocks:

  1. fuse and relay department
  2. department of high-power fuses in the form of fusible links
No.APurpose of fuses
1Reserve
25ASteering column switches
35ADiagnostic connector
430AABS hydro-electronic module
515AAutomatic transmission control unit
65AInstrument cluster
7Reserve
815AAudio system
95ATelephone
105APower supply of the engine control unit relay
1120AAdditional heater and ventilation control unit
125AInformation bus control unit
1315AEngine control unit
1420AIgnition
155/ 15AOxygen sensor, fuel pump relay, glow plug relay
1630AABS control unit
1715ASound signal
1830ASound amplifier
1930AWindscreen wipers
20Reserve
2115AOxygen concentration sensor
225AClutch brake pedal switch
235/ 10/ 15AAdditional air pump, high pressure fuel pump, mass air flow sensor
2410AExhaust gas recirculation valve
2530ARight headlight
2630ALeft headlight
2740AAdditional air pump, preheating
2840AStarter
2950APower supply clamp 30
3050ATerminal X – Equipment connected to this terminal is automatically switched on when the engine is started.
Relay
R1Radiator Fan Motor Relay
R2Automatic transmission control relay
R3supply voltage relay (15)