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Home/Cars/Volkswagen/Golf/MK7 (2015-2019)/how to fix low oil pressure warning in my Volkswagen Golf MK7 (2015-2019)

how to fix low oil pressure warning in my Volkswagen Golf MK7 (2015-2019)

Volkswagen Golf MK7 (2015-2019)

Severity: highDifficulty: medium2-4 hours
4 min read
636 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix low oil pressure warning in Volkswagen Golf MK7 (2015-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems to avoid shocks or shorts.
  • ⚠Allow the engine to cool before draining oil to prevent burns.

Symptoms

  • •Low oil pressure warning light illuminated on the dashboard
  • •Engine may exhibit rough idling or unusual noises
  • •Decreased engine performance or power
  • •Possible oil leaks under the vehicle
  • •Increased engine temperature due to insufficient lubrication

Diagnostic Steps

  1. 1Check the engine oil level using the dipstick to ensure it is at the proper level.
  2. 2Inspect for any visible leaks around the oil filter, oil pan, and seals.
  3. 3Scan the vehicle's onboard computer for any stored diagnostic trouble codes (DTCs) related to oil pressure.
  4. 4Test the oil pressure using a mechanical oil pressure gauge to confirm the reading.
  5. 5Inspect the oil pump for proper operation and any signs of wear or damage.
  6. 6Check the oil pressure sending unit for faults or poor connections.

Solution

Solution

1. Preparation

  • Gather tools and parts required for the repair.
  • Ensure the vehicle is parked on a flat surface and that the engine is cool.
  • Disconnect the battery to ensure safety while working on electrical components.

2. Change Engine Oil and Filter

  1. Place a drain pan beneath the oil pan.
  2. Remove the oil drain plug using a socket wrench and allow the old oil to completely drain.
  3. Replace the oil drain plug and tighten it to the manufacturer’s specified torque (typically 25-30 Nm).
  4. Remove the old oil filter using an oil filter wrench.
  5. Clean the mounting surface on the engine where the filter attaches.
  6. Apply a small amount of fresh oil to the rubber seal of the new oil filter and install it by hand until snug, then tighten it further according to specifications (usually 3/4 turn after contact).
  7. Fill the engine with new oil through the oil filler cap, using the recommended oil type (usually 5W-30 or 0W-30 for the MK7).
  8. Start the engine and allow it to run for a few minutes, checking for leaks around the filter and drain plug.

3. Replace Oil Pressure Sending Unit (if necessary)

  1. Locate the oil pressure sending unit, typically found near the oil filter or on the engine block.
  2. Disconnect the electrical connector from the sending unit.
  3. Remove the sending unit using a socket or wrench, being careful not to damage surrounding components.
  4. Install the new oil pressure sending unit and tighten to the manufacturer’s specifications (usually around 20 Nm).
  5. Reconnect the electrical connector.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • Oil filter wrench
  • Socket set
  • Torque wrench
  • Mechanical oil pressure gauge
  • Drain pan
  • Pliers or wire cutters

Parts Required

  • Engine oil (5W-30 or 0W-30)
  • Oil filter
  • Oil pressure sending unit (if faulty)

Additional Information

Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

3 items

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