Skoda Superb with turbocharged engine 1.8 TSI A reliable car, but even it is not immune to problems with the lubrication system. One of the weaknesses is oil level sensorThe one responsible for controlling the amount of lubricant in the pallet. Its incorrect operation can lead to oil starvation, engine overheating and expensive repairs.

In this article, we will analyze how to determine the fault of the sensor, what errors it issues, how to check and replace it yourself. We also answer frequent questions from owners. Superb with motor CDAB or CDAA (1.8 TSI).

Symptoms of a malfunctioning oil level sensor

The first signal about problems with the sensor is false oil reading on the dashboard. For example, the oil pressure lamp lights up at a normal level, or vice versa – the system does not respond to a critical drop in oil. Here are the main symptoms:

  • 🚨 Lights up on the dash OIL LEVEL LOW, although the oil is normally poured
  • πŸ“‰ The oil level on the display jumps or shows "0" after starting the engine
  • ⚠️ There is an error in the control unit P0524 (low sensor signal level)
  • πŸ”§ After oil change, the readings are not updated, although I have already traveled 50+ km.

On Skoda Superb with 1.8 TSI The oil level sensor is integrated into the oil pump control unit. If it fails, the system may not properly regulate the pressure, which leads to accelerated wear of the turbine and piston group.

⚠️ Attention: If the oil pressure lamp flashes on the device, and the level is normal - immediately turn off the engine! This can be a sign not only of a faulty sensor, but also of an oil pump breakdown.

What errors does a faulty sensor produce?

Diagnostic scanner (eg VCDS or OBDeleven) if there is a problem with the oil level sensor on Superb 1.8 TSI will show the following codes:

Error code Description Probable Cause
P0524 Low signal level of oil sensor Chain break, contact oxidation, sensor malfunction
P0520 Oil pressure sensor circuit malfunction Problems with the wiring or the sensor itself
P2509 Incorrect signal of the oil level sensor Closing, damage to the sensor or control unit
U1000 Loss of communication with the oil pump control unit Problems with the CAN bus or unit

If the scanner shows P0524, check first contact status on the sensor connector. Often the problem lies in oxidized or damaged wires, not in the sensor itself.

πŸ“Š What error code have you encountered?
  • P0524
  • P0520
  • P2509
  • Other
  • No errors

Where is the oil level sensor on Skoda Superb 1.8 TSI?

On engines 1.8 TSI (CDAB/CDAA) oil-level sensor oil-plate, next to the oil pump. To get there, you will need to:

  1. Remove the crankcase protection (4 bolts by 13)
  2. Unscrew the plastic casing under the engine (if any)
  3. Find the sensor – it looks like a black plastic cylinder with a connector and two wires

The photo below shows its exact location (in red circle):

The sensor is mounted on a single turnkey bolt. T30. Before removing it is necessary disconnect the negative terminal of the batteryto avoid short circuit.

⚠️ Attention: Don’t confuse the oil level sensor with the pressure sensor. Pressure sensor on 1.8 TSI It is located in the head of the cylinder block, and the oil level is measured by a bottom sensor.

How to check the oil level sensor with a multimeter?

Before replacing the sensor, it can be checked for performance. It's gonna take a while. multimeter And some butter. Procedure:

Remove the sensor from the car | Clean it of oil and dirt | Connect the multimeter probes to the contacts (resistance should be 50-150 Ohms) | Load the sensor into the oil and measure the resistance again (must change) | If the resistance does not change - the sensor is faulty->

Normal readings for a serviceable sensor:

  • πŸ”‹ In the air: 100-150 Ohm
  • πŸ›’οΈ In oil (completely submerged): 50-80 Om.
  • ⚑ When changing the oil level, the resistance should change smoothly.

If the sensor does not respond to the oil immersion, it must be replaced. Check it out, too. wiring integrity From the sensor to the control unit - often problems lie in the rubbed wires.

πŸ’‘

Before checking, warm up the engine to operating temperature (90 Β° C) - this will give more accurate readings, as the oil will become less viscous.

Replacement of the oil level sensor by Skoda Superb 1.8 TSI

To replace the sensor will require:

  • πŸ”§ Key T30 (Torx)
  • πŸ”§ Head on 13 mm (to protect the crankcase)
  • 🧴 New sensor (article: 06H 906 051 C or 06H 906 051 D)
  • 🧴 O-ring (combined with sensor)

Replacement instructions:

  1. Turn off the engine and let the oil drain into the pallet (wait 10-15 minutes).
  2. Remove the negative terminal from the battery.
  3. Dismantle the crankcase protection.
  4. Disconnect the connector from the sensor (click on the lock and pull up).
  5. Key T30 Unscrew the sensor and remove it.
  6. Install a new sensor with an O-ring and tighten the moment 8 Nm.
  7. Connect the connector and reassemble everything in reverse order.

After replacement be sure to reset the service interval via menu MENU β†’ Service β†’ Reset Or a diagnostic scanner.

What if the error does not disappear after the sensor is replaced?

If an error (for example, P0524) stayed, check:

1. Quality of contacts in the connector (possibly oxidation).

2. Integrity of wiring from the sensor to the control unit.

3. Correct installation of the sealing ring (if it is damaged, the oil can leak, causing false positives).

4. Compatibility of the sensor with your version of the ECU firmware (on some Superb After 2017, a sensor with an index is required D, not C).

How much does an oil level sensor cost and where can I buy it?

The price of the sensor depends on the manufacturer and the place of purchase. The original sensor from VAG with article number 06H 906 051 C will cost 2,500–4,000 rubles. Analogues from Febi, Hella or Vemo can be found cheaper - from 1,500 to 2,500 rubles.

Manufacturer Article Approximate price (RUB) Where to buy
Original (VAG) 06H 906 051 C 3 500 Official dealer, Exist.ru
Febi 26183 1 800 Autodoc, Emex
Hella 6XU 008 639-001 2 200 Autosphere, Kufar
Vemo V10-72-0101 1 600 AliExpress, Autopro

When purchasing, pay attention to sensor index (C or D). For cars after 2017, a version is often required D. Also check the package - there should be an O-ring in the box.

πŸ’‘

Do not buy sensors without an O-ring! When reinstalled, the old ring may not provide a tight seal, which will lead to oil leaks.

Frequently asked questions about the oil level sensor on Skoda Superb 1.8 TSI

Is it possible to drive with a faulty oil level sensor?

Technically possible, but highly not recommended. If the gauge shows a false low level, you may miss a real drop in oil, resulting in oil starvation and turbine or engine failure. If the sensor shows a false high level, there is a risk of oil overflow and damage to the seals.

How to reset the oil level sensor error after replacement?

The error can be reset in three ways:

  1. Via diagnostic scanner (VCDS, OBDeleven β€” select the error and click β€œClear DTC”).
  2. Through the car menu: MENU β†’ Settings β†’ Service β†’ Reset.
  3. By removing the battery terminal for 10-15 minutes (does not always work).

If the error appears again, the problem is not in the sensor, but in the wiring or control unit.

Why is the level not updated after changing the oil?

This is normal behavior for Skoda Superb. The system updates the oil level readings only after 50-100 km run. If you have driven more and the level has not changed:

  • Check the sensor (it may be faulty).
  • Make sure the oil is filled to the maximum (between MIN and MAX on the dipstick).
  • Reset sensor adaptation via diagnostics.
What kind of oil should I fill in the 1.8 TSI for the sensor to work correctly?

Oil level sensor on 1.8 TSI calibrated for oils with viscosity 5W-30 or 5W-40, meeting specifications VW 502.00 / 504.00. Using oils with a different viscosity (for example, 0W-20) may lead to incorrect sensor readings.

Recommended brands: Castrol Edge, Liqui Moly Top Tec, Motul Specific.

Is it possible to repair the oil level sensor or just replace it?

The oil level sensor is a non-separable unit. Attempts to repair it (e.g., cleaning contacts or replacing internal components) usually fail because the sensor's resistive element degrades over time. The only reliable solution is replacement.