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Home/Cars/Volkswagen/Tiguan/Second Generation (2018-present)/why does my Volkswagen Tiguan lose power steering intermittently

why does my Volkswagen Tiguan lose power steering intermittently

Volkswagen Tiguan Second Generation (2018-present)

Severity: highDifficulty: medium2-4 hours
3 min read
550 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 intermittent power steering loss in Volkswagen Tiguan. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Component
Steering
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before starting work on the power steering system.

Symptoms

  • •Intermittent loss of power steering assistance
  • •Steering feels heavy or difficult to turn
  • •Warning light on the dashboard (if equipped with steering assistance warning)
  • •Unusual noise from the power steering pump when steering
  • •Fluid leaks under the vehicle near the power steering system

Diagnostic Steps

  1. 1Check the power steering fluid level: Inspect the reservoir and top off if low.
  2. 2Inspect for leaks: Visually check the power steering lines and connections for any signs of fluid leakage.
  3. 3Scan for error codes: Use an OBD-II scanner to check for any related fault codes that may indicate a problem with the power steering system.
  4. 4Test the power steering pump: Check the pump's operation by listening for unusual noises and checking for proper fluid circulation.
  5. 5Inspect the steering rack: Look for any wear or damage that could affect the steering function.
  6. 6Check electrical connections: Ensure that all electrical connections related to the power steering assist are secure and free of corrosion.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the battery before starting work on the electrical systems to ensure safety.

2. Inspect and Replace Power Steering Fluid

  • Tools Required: Fluid extraction tool, funnel.
  • Check the power steering fluid for contamination or low levels.
  • If low, extract old fluid from the reservoir and replace it with the manufacturer-recommended fluid.

3. Repair or Replace Power Steering Pump

  • Tools Required: Socket set, wrench set, fluid catch pan.
  • Remove the drive belt connected to the power steering pump.
  • Disconnect the power steering lines from the pump, using a fluid catch pan to catch any leaking fluid.
  • Unbolt and remove the power steering pump from its mounting.
  • Install the new or rebuilt power steering pump in reverse order, ensuring all connections are secure.
  • Refill the power steering fluid and bleed the system according to manufacturer specifications.

4. Inspect and Repair Steering Rack

  • Tools Required: Socket set, torque wrench, steering rack bushings (if needed).
  • Remove the necessary components to access the steering rack.
  • Inspect for any physical damage or wear.
  • Replace the steering rack if necessary, following the manufacturer’s torque specifications for all bolts and connections.

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

  • OBD-II scanner
  • Socket set
  • Wrench set
  • Fluid extraction tool
  • Torque wrench
  • Funnel

Parts Required

  • Power steering fluid
  • Power steering pump (if replacement is necessary)
  • Steering rack (if replacement is necessary)

Additional Information

Component

Steering

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

3 items

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