how to check for fluid leaks in my Volkswagen Golf MK7.5 (2020-Present)

Solution

1. Preparation

• Gather necessary tools and materials including safety goggles and gloves.
• Ensure the engine is cool and parked on a level surface.

2. Visual Inspection and Cleaning

• Sub-steps:
  1. Clean the area under the engine and transmission with a degreaser to better observe new leaks.
  2. Use a flashlight to inspect the area thoroughly.

3. Fluid Level Check

• Sub-steps:
  1. Open the hood and locate the engine oil dipstick, coolant reservoir, and brake fluid reservoir.
  2. Remove the dipstick, wipe it clean, insert it back, and then remove it again to check oil level.
  3. Check coolant and brake fluid levels against the markings on the respective reservoirs.

4. Hose Inspection

• Sub-steps:
  1. Visually inspect all hoses for cracks, bulges, or wear.
  2. Check the tightness of hose clamps and fittings. Tighten any that are loose.

5. UV Dye Application and Testing

• Sub-steps:
  1. Add UV dye to the suspected fluid system (engine oil, coolant, etc.).
  2. Let the vehicle run for a short period to circulate the dye.
  3. Use a UV light to inspect for leaks, focusing on connections and hoses.

6. Pressure Testing

• Sub-steps:
  1. Connect a cooling system pressure tester to the radiator cap.
  2. Pump the tester to the recommended pressure (usually around 15-20 psi).
  3. Observe for any drops in pressure which can indicate leaks.