Ε koda Octavia Tour is one of the most popular station wagons on the Russian market, but even such a reliable car has little things that break down over time. One of the frequently asked questions from owners: where is the reverse sensor located and how to replace it if the lights stop working or the rear view camera refuses to turn on. In this article we will analyze the location of the sensor on different generations Octavia Tour (A5, A7, FL), we will show connection diagrams and give step-by-step instructions for self-diagnosis.
Reverse sensor (aka reverse light switch) is a simple mechanical or electronic sensor that is activated when the gear is engaged. Its malfunction not only leads to a lack of light, but can also block the operation of parking sensors or the camera. On Octavia Tour it is not located obvious, and many owners spend hours searching, rummaging through half the cabin. We will save your time.
Which generations of Octavia Tour have a reverse sensor installed?
There is a reverse sensor on everyone versions Octavia Tour, but its design and location differ depending on the generation and type of gearbox. Here are the key models that interest us:
- πΉ Octavia Tour A5 (2004β2013) - manual (MQ200/MQ350), automatic (09G/09M), robot (DSG-6).
- πΉ Octavia Tour A7 (2013β2020) - manual (MQ200/MQ250), automatic (09G/09M), robot (DSG-7).
- πΉ Octavia Tour FL (facelift 2017β2020) - similar gearboxes, but with updated electrics.
On diesel versions (1.6 TDI, 2.0 TDI) and petrol (1.4 TSI, 1.8 TSI, 2.0 TSI) the location of the sensor is identical - the only difference is in access to it due to the features of the engine compartment. Important: on machines with robotic gearbox DSG The sensor is integrated into the transmission control unit and is replaced differently!
- Mechanics
- Automatic (torque converter)
- Robot (DSG)
- I don't know
Where exactly is the reverse sensor located: photos and diagrams
On Octavia Tour with manual transmission The reverse sensor is located on the gearbox housing on the battery side (on the right in the direction of travel). It is screwed into an aluminum case and has a connector with 2-3 wires. On automatic machines (09G/09M) the sensor is hidden deeper - it is visible only after removing the air filter.
Below are diagrams for different generations:
| Generation | Gearbox type | Sensor location | Photo/diagram |
|---|---|---|---|
| Octavia Tour A5 | Mechanical (MQ200) | On the gearbox housing, next to the speedometer drive | π· [Link to photo] |
| Octavia Tour A7 | Automatic (09G) | Under the air filter, on top of the gearbox | π· [Link to photo] |
| Octavia Tour FL | Robot (DSG-7) | In the mechatronics unit, replacement only in the service | β οΈ Requires diagnostics |
π§ How to quickly find a sensor:
- Open the hood and remove the negative battery terminal (required!).
- On the mechanics, look for a connector with 2 wires (black and green/yellow) near the speedometer drive.
- On automatic, remove the air filter housing - the sensor will be on the top of the gearbox, closer to the passenger compartment.
What to do if the sensor is not found?
On some versions Octavia Tour A7 with the 1.8 TSI engine the sensor can be hidden under the heat shield. Also check if it is installed on the transfer case (for 4x4 versions).
Symptoms of a faulty reverse sensor
If the reverse sensor has failed, you will notice the following symptoms:
- π¨ Reverse lights do not light up when shifting into gear (the most obvious sign).
- π΅ Rear view camera does not work (on models with multimedia Bolero/Amundsen).
- π Parking sensors are not activated when moving backwards.
- β οΈ Error on the dashboard (for example,
P0705β sensor circuit malfunction).
π‘ How to check the sensor without removing it? Ask an assistant to engage reverse gear, and measure the voltage at the sensor connector yourself with a multimeter. If the sensor is working properly, one of the contacts should show +12V.
β οΈ Attention: On Octavia Tour with a DSG robot, the reverse sensor often βglitchesβ due to oxidation of the contacts in the mechatronics unit. Don't rush to change it - clean the connectors first!
Step-by-step instructions for replacing the reverse sensor
Replacing the sensor with Octavia Tour takes 15β30 minutes and does not require special tools. You will need:
- π§ 22 mm wrench (or socket with extension).
- π Screwdriver for removing the connector.
- π§΄ WD-40 (if the sensor is stuck).
- π New sensor (article for A5:
1K0945611, for A7:5Q0945611A).
Procedure:
βοΈ Replacing the reverse sensor
β οΈ Important nuance: On Octavia Tour A7 with a gun 09G the sensor can be βrecessedβ into the gearbox housing. To unscrew it, use the head extension.
Before installing a new sensor, apply a little graphite lubricant to the threads - this will make future replacement easier and prevent oxidation.
Common replacement mistakes and how to avoid them
Many owners Octavia Tour encounter problems after replacing the sensor. Here are the most common mistakes:
- π Incorrect connector connection β β+β and β-β contacts are mixed up. Check the polarity with a multimeter!
- π§ Dragging the sensor β it is enough to tighten it with a force of 20β25 Nm. Broken thread = expensive gearbox repair.
- π Forgot to reset error in the control unit. On Octavia Tour A7 after replacement you need to reset the error
P0705via a diagnostic scanner (for example, VCDS).
π How to check that the sensor is working? After installation:
- Turn on the ignition.
- Ask an assistant to engage reverse gear.
- Check to see if the lights come on and the camera (if equipped) is activated.
- If nothing works, check the fuse
F42(10A) in the block under the steering wheel.
β οΈ Attention: On Octavia Tour with multimedia Columbus After replacing the sensor, you may need to reboot the system (hold the power button for 10 seconds).
Sensor cost and alternative options
Price of a new reverse sensor for Octavia Tour depends on the generation and manufacturer:
| Article | Generation | Manufacturer | Price, rub. | Analogs |
|---|---|---|---|---|
1K0945611 |
A5 (2004β2013) | Original (VAG) | 1 200β1 500 | FEBI 27316, SWAG 30945611 |
5Q0945611A |
A7/FL (2013β2020) | Original (VAG) | 1 800β2 200 | HELLA 6PT009403012 |
02E945611 |
A5/A7 (DSG) | Original (VAG) | 3 500β4 000 | Only the original! |
π° Saving tip: If the sensor βsticksβ due to oxidation, try disassembling it, cleaning the contacts and lubricating it LIQUI MOLY Kupfer-Spray. This will temporarily solve the problem and delay the purchase of a new one.
β οΈ Be careful with analogues! On Octavia Tour A7 Cheap sensors (for example, Chinese ones without a brand) often do not work due to different characteristics of the contact group. Better to overpay for HELLA or FEBI.
FAQ: Answers to popular questions
π Is it possible to drive without a reverse sensor?
Technically yes, but it's not safe. Without working reverse lights, you may be fined (Article 12.5 of the Administrative Code, 500 rubles), and the camera and parking sensors will not be activated. In addition, on Octavia Tour with an automatic transmission, a faulty sensor can block switching to R.
π οΈ What tools are needed to replace the DSG?
On robots DSG-6/DSG-7 the sensor is integrated into the mechatronics, and to replace it requires:
- Special key for mechatronics (for example, Hazet 2172-1).
- Diagnostic scanner (VCDS, ODIS).
- New mechatronics unit (if the sensor is not dismountable).
Self-replacement not recommended - errors lead to gearbox failure.
π¨ Why do the lights still not come on after replacing the sensor?
The reasons may be as follows:
- Fuse blown
F42(10A) in the block under the steering wheel. - The contacts in the sensor connector or in the light control unit have oxidized (J519).
- Broken wire between the sensor and the comfort unit (J393).
- The error in the ECU has not been reset (a scanner is needed).
Check the circuit with a multimeter in continuity mode.
π§ Is it possible to repair the sensor without buying a new one?
Yes, if the problem is contact oxidation. Disassemble the sensor (carefully prying off the cover with a screwdriver), clean the contacts with sandpaper or WD-40 Contact Cleaner, then lubricate LIQUI MOLY Kupfer-Paste. Collect and check. This works 60% of the time.
π Exception: if the plastic rod or spring is broken, just replace it.
π Is it necessary to do adaptation after replacement?
On Octavia Tour A5 no adaptation required. On A7/FL with an automatic or DSG it may be necessary to reset errors via VCDS (channel 02 β Transmission electronics). If after replacement it lights up ESP or ASR, be sure to carry out clutch adaptation (for DSG).
On Octavia Tour with a manual transmission, the reverse sensor can be changed in 15 minutes and costs 1,200β1,500 rubles. On automatic machines and DSG robots, the process is more complicated - without experience, it is better to contact a service center.