The problem with the incorrect operation of the central castle or the constant burning of the backlight of the cabin is one of the most frequent "pain" of the body on cars of the family Skoda Octavia Tour. Most often, the culprit is not the lock or the wiring itself, but a miniature element built into the mechanism of the door lock. limit switch. When this sensor fails, the electronics stop understanding if the door is open or closed, which blocks automatic locking when moving.
Ignoring this problem can lead to battery discharge if the cabin lighting does not turn off at night, or to the inability to lock the car from the key fob. Owners. Skoda Octavia A5 In the Tour body, we have to deal with the fact that original spare parts for this model are no longer produced in large volumes, and there are many low-quality analogues on the secondary market. However, replacing the end door switch Ε KODA Octavia Tour does not require complex tools and is available even for a novice motorist with basic skills.
Why the sensor is failing on the Octavia Tour
The main reason for premature refusal limit switch It is based on the design of the door locks of that era. The mechanism is subjected to constant vibrations, temperature changes and moisture that penetrates through seals. The plastic pusher inside the sensor wears off or breaks over time, and the metal contacts oxidize due to condensation.
Often owners Octavia Tour They don't notice the problem right away. At first, the interior lights can simply flash when closing, and after a week the system ceases to react to the door opening at all. This is due to the fact that when the sensor spring wears, it does not return to its original position, or the contact closes / breaks with a delay. In such cases, the electronic control unit detects the error and blocks the automatic locking function.
Do not blame the problem on the fault central lock The key fob itself, if the symptoms point to one particular corner of the door. Diagnosis begins with checking the performance of the end switch, since replacing the entire lock assembly is an expensive and not always justified decision. Often it is enough to replace only the βfootβ or switch inside the mechanism.
β οΈ Note: If you donβt check the condition of the sensor before replacing, you can replace the serviceable element and the problem will remain, as the cause may be a wiring cliff in the corrugated door.
Diagnosis of faults and selection of spare parts
Before you open the door, you need to make sure that it is the fault limit switch. The easiest way is to use a diagnostic scanner (such as a VCDS or VAG-COM) by connecting to the comfort unit. In the Error Reader menu, you will see a code pointing to the sensor circuit of a particular door. If the scanner is not available, you can visually inspect the mechanism or try to move the pusher.
When choosing a spare part for Skoda Octavia Tour It is important to understand the difference between the original and the analogues. The original sensors are VW/Audi, but are much more expensive. High-quality analogues from brands like Febi or SWAG They can last a long time, but cheap Chinese copies are often too hard to run or break quickly.
It is important to note that on some modifications of the doors (especially the front) the end is integrated into the lock itself, and on the rear can be made separately into a plastic case. This affects the complexity of the repair. For Octavia Tour Most often, it is the built-in element inside the door lock that is required to be replaced.
- π Check the integrity of the wire in rubber corrugated β this is a common cause of false positives.
- π οΈ Use a multimeter to check the vertebrae of the contacts when pressing and pressing the pusher.
- π§ Purchase a sensor with the original VAG article to avoid problems with the seat.
- Front (integrated)
- Rear (taken out)
- I don't know for sure
- Broken completely.
Tools and preparation for work
For a successful replacement door-switch You will need a standard set of tools that most motorists have. The main requirement is accuracy, as plastic on the doors Octavia Tour It is not new and can be fragile. Do not use sharp screwdrivers for slacking, it is better to take a plastic card or a special remover.
You will definitely need a set of Torx bits (stars), as most of the mounts in the doors of the Ε KODA are made for them. Also prepare lubricant for the guide lock and a new one. limit switch. If you plan to change the entire lock, make sure the complete set matches yours (with or without a pressure sensor, with or without an electric drive).
βοΈ Preparing for replacement
Before starting work, it is recommended to turn off the negative terminal of the battery to avoid short circuit when disconnecting the connectors. This is especially true if you are not sure about the insulation of the wires. Electrical work requires caution, even if the voltage is only 12 volts.
β οΈ Note: Do not pull the wires when disconnecting the connector from the lock, use the locks on the plastic case of the connector itself, otherwise you can cut the contacts inside.
Step-by-step replacement instructions
The replacement process begins with the removal of the door card. Unscrew the screws in the recesses of the handles and under decorative stubs, then gently click the clips around the perimeter. When you remove the skin, you will see a metal door, pasted with a protective film. Carefully peel it off at the access point to the lock, trying not to break, then close it back.
The lock mechanism itself must be removed. Unscrew three bolts of mounting door lock and disconnect the thrusts that come from the outer handle and the inner latch. They are attached to plastic fixtures, which must be carefully tampered with and released. Be careful as the springs of the thrusts can jump and get lost.
After removing the lock, you will have access to the back of the mechanism, where the lock is located. limit switch. It is usually fixed by two small clips or one screw. Turn off the electrical connector, press the locks and remove the old sensor. Installation of the new element occurs in reverse order: insert it before clicking and connect the connector.
- π© Use a dynamometer key to tighten the lock bolts so as not to break the thread.
- π§Ό Clean the seat of dirt and old lubricant before installing the new sensor.
- π Test the operation of the lock before the complete assembly of the door by connecting the battery.
What if the sensor does not change separately?
In some cases, the manufacturer does not provide for a separate replacement of the tip, and it cannot be removed without destroying the lock body. In such a situation, you will have to change the entire lock in the collection, which is much more expensive, but more reliable.
Specifics of working with front and back doors
On Skoda Octavia Tour There are significant differences in the design of the front and rear doors locks. On the front doors, the end is often part of a complex electric drive mechanism, making the replacement more time-consuming. It is important not to damage the drive cables during dismantling.
The rear doors are usually easier to maintain, as the lock mechanism is simpler and more open. However, there is often more moisture accumulated due to the peculiarities of water flow. Check the drainage holes before installing a new one limit switchSo that the problem doesnβt happen again in a month.
Sometimes the problem is not in the sensor itself, but in its adjustment. If the sensor pusher protrudes too much or too little, it will not fire correctly. Make sure the new element is installed tightly and has no backlash. In some cases, a thin cardboard substrate helps to adjust the course.
Before installing the new sensor, apply a drop of silicone lubricant to its movable pusher. This will ensure a smooth run and prevent jamming from dirt or ice in winter.
Article table and compatibility
For those who want to know exactly what parts to buy, below is a table with the main articles. Please note that the numbers may vary depending on the year of production and configuration. Octavia Tour.
| door | Lock type | Original number (example) | Analogue |
|---|---|---|---|
| Front left | Electrically driven | 1Z0 837 015 B | Febi 34567 |
| Front right | Electrically driven | 1Z0 837 016 B | Febi 34568 |
| Rear left | Without electric drive | 1Z0 837 037 | SWAG 20 93 456 |
| Rear right | Without electric drive | 1Z0 837 038 | SWAG 20 93 457 |
When ordering spare parts, always check the VIN code of your car. Even one model. Octavia Tour Different locks may be installed depending on the market. An error in the article will cause the new limit switch It will not work or will not work with your control unit.
The use of original articles or proven analogues is a guarantee that the problem with the door sensor will not return after a short service life.
Common replacement errors and their consequences
The most common mistake is the improper installation of plastic clamps when assembling the door lining. If the clips do not stand up to the end, the skin will begin to rattle at speed, and in some cases, water can get inside through the cracks, damaging the already installed new one. limit switch.
Another mistake is forgetfulness when connecting the connector. Often, after replacing the sensor, the electric plug is forgotten, which leads to the system thinking that the door is constantly open. As a result, automatic locking does not work, and the light bulb in the cabin burns constantly, discharging the battery.
It is also worth noting the risk of damage to the control cables. When dismantling the lock, it is easy to break the plastic nozzle at the end of the cable. If this happens, the lock will stop opening from the inside or outside, and you will have to change not only the sensor, but the entire mechanism. Work very carefully.
β οΈ Warning: After replacement, be sure to check the operation of the central lock from all doors and from the key fob before considering the repair complete.
How much does the repair cost and where to do it?
Replacement cost door-switch This varies depending on whether you do it yourself or use the service. The sensor itself is inexpensive - from 500 to 2000 rubles, depending on the manufacturer. Work of the master at the service station can cost 1500-3,000 rubles for one door, since the process requires dismantling of the skin.
If you decide to replace the entire lock in the collection, the price will increase significantly, since the mechanism itself costs from 5000 to 15000 rubles. In the case of Skoda Octavia Tour It is often more profitable to find a used lock in good condition or to buy only a sensor if it is technically possible.
Many car owners choose a self-sustaining replacement, as the technology does not require complex equipment. The main thing is to have time, patience and a set of tools. Savings in self-repair can be more than 50% of the cost of the service.
How to check the end without a multimeter?
You can check the sensor by simply pressing it with your finger or screwdriver when ignition is on. If the lighting goes out in the cabin or the door status icons change on the instrument panel, the sensor works. If there is no reaction, the problem is in it or in the wiring.
Is it possible to drive with a faulty limit switch?
Technically, you can drive, but it is inconvenient. The central lock will not automatically close when moving, which is not safe. Also, the lighting of the cabin will burn, which can distract the driver and discharge the battery during long parking.
Why doesn't the new sensor work after installation?
Possible reasons: a broken wire in the door corrugation, poor contact in the connector, or a defective sensor itself. Also check if you have reversed the polarity (although this is rarely important for simple switches) and if the lock mechanism is jammed.
Do I need to reset errors after replacement?
Usually the errors disappear on their own after several cycles of opening and closing the door. If the scanner shows an error, it can be removed manually through diagnostic equipment. In some cases, completely disconnecting the battery for 10-15 minutes helps.