The situation when the wipers stop working Skoda Fabia 2, is one of the most common problems in the operation of this popular hatchback. A sudden failure of the windshield cleaning system can happen at the most inopportune moment, for example, during heavy rain or snowfall, which poses a critical threat to driving safety. Often, owners are faced with the fact that the control lever is in the working position, but the brushes remain motionless or move jerkily, ignoring the driverβs commands.
The reasons for the failure can vary from a simple fuse blown to a complex mechanism failure in the comfort control unit (COM). Diagnostics The windshield wiper system requires a sequential approach, since the electrical circuit Skoda Fabia the second generation has its own characteristics. In this article, we will analyze in detail all possible malfunctions, from simple checks to replacing expensive components, so that you can quickly return your car to working order.
Primary diagnostics: fuses and relays
The first step in troubleshooting the problem should be a visual inspection of the fuse box. On Skoda Fabia 2 A whole set of protective elements located in the cabin on the left side of the instrument panel is responsible for the operation of the windshield wiper system. You need to remove the plastic cover and find a diagram that shows the fuses for wiper motor and comfort block.
Most often, the culprit is a blown fuse responsible for powering the washer pump or the windshield wiper drive itself. If the fuse is intact, but the wipers do not respond when turned on, the next logical step is to check the relay. The windshield wiper relay on this model often fails due to stuck contacts or overcurrent.
To test the relay, you will need a multimeter or a known good relay of a similar brand. Please note that in some configurations the relay may not be available, since control is carried out directly by electronics, however, on earlier versions Fabia 2 it is the key link.
- π Visually inspect the fuses for broken filament inside the bulb.
- π§ Use a multimeter to test the relay contacts in βsoundβ mode.
- π Try temporarily replacing the relay with a similar one from another node (if the pinout matches).
Wiper motor malfunctions
If the electrical circuit is intact, and power is supplied to the unit, but the mechanism does not rotate, the problem lies in the electric motor. Wiper motor on Skoda Fabia 2 installed under the plastic decorative panel at the bottom of the windshield. Over time, the motor shaft bearings wear out and the commutator brushes wear out, leading to a complete stop.
One of the frequent breakdowns is jamming of the mechanism due to moisture, dirt or icing. If the wipers tried to move the frozen glass, the motor could burn out or its internal thermal relay fuse could blow. In this case, when you turn it on, you may hear a quiet click, but there will be no rotation.
To check, you need to remove the plastic cover and disconnect the power connector from the motor. Apply voltage to the contacts directly from the battery (for a short time!) to eliminate the influence of the wiring. If the motor does not respond to direct connection, it requires replacement or complex repair of the armature.
- βοΈ Check that the trapezoid arms are not mechanically jammed by hand.
- β‘ Apply 12V forward voltage to the motor terminals for the test.
- π§οΈ Inspect the motor seals for water getting inside the housing.
Problems with contact group and wiring
Very often on cars Skoda Fabia 2 With a mileage of more than 10 years, a problem arises with oxidation of the contacts in the electric motor connector. Due to constant vibrations and exposure to an aggressive environment (salt, moisture), the contacts may stop conducting current. It is also possible for the wires to break in the corrugation running from the body to the engine.
Pay attention to the condition of the gear shift lever itself. Inside the plastic switch housing there are copper slip rings, which wear out or become covered with carbon deposits over time. If your wipers only work in one setting or are delayed, the problem is almost certainly in the switch.
For an accurate diagnosis, it is necessary to remove the steering column and disassemble the steering column switch unit. Cleaning the contacts with coupling fluid or replacing the entire switch assembly often solves the problem without replacing expensive motors.
- π Inspect the connectors for green oxide deposits.
- πͺ Check the integrity of the wire insulation at the point where they exit the corrugation.
- ποΈ Disassemble the steering column switch and clean the contact groups with alcohol.
- Completely do not work
- Works only at high speed
- Work in jerks
- Only "spray" works
The role of the comfort unit (COM) in the operation of wipers
One of the most complex and specific problems Skoda Fabia 2 is a failure of the comfort control unit (Convenience Module). It is this unit that processes the signals from the switch and controls the relays and wiper motors. If the unit dies, all functions related to the door locks and wipers may fail at the same time.
A common cause of block failure is water entering the car interior through drainage holes under the windshield. The water flows down, overflows and enters the block, which is located at the feet of the passenger or driver. Moisture causes a short circuit on the COM block PCB.
Restoring the unit is often possible by flushing the board and replacing burnt components, but in some cases a complete replacement of the device is required, followed by adaptation to the car through a diagnostic scanner.
β οΈ Attention: If you find traces of water in the fuse box or under the plastic of the instrument panel, immediately disconnect the battery! Applying current to a wet COM block is guaranteed to lead to its eventual death.
- π Inspect the floor under the instrument panel for signs of dampness.
- π» Connect a diagnostic scanner to read errors in the COM block.
- π§ Check the operation of other functions of the unit (central locking, lights) to confirm the diagnosis.
Mechanical failures of trapezoid and levers
Sometimes the electrics work fine, the motor turns, but the glass does not clean. In this case the problem is purely mechanical. Plastic gears in the electric motor gearbox or connecting sleeves on the trapezoid arms may break. Plastic on Skoda Fabia 2 Over time it becomes tanned and cracks under load.
Particular attention should be paid to attaching the windshield wiper arms to the trapezoid rods. If the fastening nut is loose, the arms may rotate without moving the brushes. It is also possible that the mechanism is skewed, causing it to jam in a certain position. In this case, the motor may hum, but will not be able to turn the jammed trapezoid.
To check, you need to remove the wiper arms and decorative trim. Try to manually rotate the trapezoid. If it moves with difficulty or with a characteristic crunch, the worn bushings or the entire trapezoid assembly must be replaced.
βοΈ Diagnosis of trapezium
What to do if the gearbox gear breaks?
If you find a cracked plastic gear inside the motor, do not try to glue it back together. This is a temporary measure. It is best to replace the entire gearbox or find a used motor in good condition, since accurate tooth alignment is critical to the longevity of the mechanism.
How to replace a windshield wiper motor: step-by-step instructions
If you determine that it is the electric motor that is faulty, replacing it does not require complex tools, but it does take time due to the need to remove plastic elements. You'll need a set of wrenches, a screwdriver, and possibly a new windshield wiper motor.
First, remove the wiper arms. To do this, you need to unscrew the fastening nuts, which often stick. Use WD-40 and gently pull the lever up. Then remove the plastic cover (frill) by unscrewing all the screws and clips. Be careful, the plastic is fragile and can crack in the cold.
Disconnect the power connector and unscrew the three bolts securing the motor to the body. Remove the motor and inspect the installation site for corrosion. Install the new assembly, observing the order in which the wires are connected, and reassemble everything in reverse order.
Removal instructions:1. Unscrew the lever nuts (13 or 15 wrench).
2. Remove the decorative frill trim.
3. Disconnect the connector from the motor.
4. Unscrew the 3 motor mounting bolts.
5. Remove the motor and check the seal.
- π Use a 13mm wrench to loosen the arm nuts.
- π§ Apply silicone grease to the seal during installation.
- βοΈ Adjust the position of the levers before finally locking them.
β οΈ Attention: When installing new levers, make sure they are in the original (βparkβ) position. If you do not secure them correctly, the wipers will stop in the middle of the glass.
Before removing the plastic jabot cover, be sure to mark the position of the levers on the glass with a marker so that they can be aligned in the same way when reassembling. This will save time on adjustments.
List of common faults and their symptoms
To quickly navigate the problem, below is a table comparing symptoms with possible causes. This will help you narrow down your search and avoid changing details at random.
| Symptom | Probable Cause | Recommended Action |
|---|---|---|
| The wipers don't work at all | Fuse, relay, COM block | Check fuses, unit diagnostics |
| The motor hums, but does not turn over | Jammed trapezoid, broken gear | Inspect the mechanics, replace the trapezoid |
| Only work at one speed | Malfunction of switch, relay | Replacing the steering column switch |
| Wipers do not return to their original position | Microswitch in the motor | Motor repair or replacement |
| Only the washer works | Switch contact problem | Cleaning the switch contacts |
Correct diagnosis begins with checking the simplest elements: fuses and relays. In 80% of cases, the problem is solved by replacing them without disassembling the interior.
Prevention and care of the cleaning system
To avoid repeated breakdowns, it is necessary to regularly service the windshield wiper system. In winter, be sure to clear the windshield of ice before turning on the wipers. Trying to move the frozen brushes with the motor is a sure way to burn out the fuse or the motor.
Check the condition of the rubber bands on the brushes and lubricate the trapezoid joints with silicone grease once a year. Also, do not forget to clean the drainage holes under the frill to prevent water from accumulating and entering the electronic unit. Timely care will extend the life of the mechanism for many years.
If you live in an area with harsh winters, consider upgrading to larger motors from older models or using winter brushes that are less susceptible to icing. This will reduce the load on electrical and mechanical parts.
- βοΈ Clear the glass of ice before turning on the wipers in winter.
- π§Ό Clean and lubricate the trapezoid joints regularly.
- π° Check and clean drainage channels under the hood.
How to check the operation of the motor without removing it?
You can supply 12V power directly to the motor contacts via jumpers. If the motor runs, then the problem is in the wiring or control unit. If not, the motor needs to be replaced.
FAQ: Frequently asked questions
Why did the wipers on the Skoda Fabia 2 stop working after washing?
Most likely, water has entered the fuse box or the comfort unit (COM). This caused a short circuit. It is necessary to dry the unit and check the fuses.
Where is the wiper relay located on Fabia 2?
On most models, the relay is located in the fuse box in the passenger compartment, to the left of the steering wheel. Sometimes it is integrated into the control unit itself and does not change separately.
Is it possible to drive with non-working wipers?
No, this is a traffic violation and a safety hazard. In rain or snow, visibility drops sharply and you will not be able to react adequately to the road situation.
How much does it cost to replace a windshield wiper motor?
The cost of a new original motor varies from 4,000 to 8,000 rubles. An analogue from third-party manufacturers may cost 2-3 times less, but it has a shorter service life.
What to do if the wipers work jerkily?
This is a sign of worn trapezoid bushings or insufficient lubrication. The cause may also be low voltage in the on-board network or wear on the motor brushes.