Evoque (2011 – 2018) - L538 Transmission Fluid Leak: Common Cause and How to Fix It

The Range Rover Evoque is celebrated for its luxury and off-road capabilities, but like any vehicle, certain models may face mechanical issues over time. One common problem that affects Evoque models with a 6-speed automatic transmission is a transmission fluid leak from the left-hand (LH) front of the vehicle. In this article, we’ll explore the details of this issue, why it happens, and how to fix it using the recommended parts and procedure.

1. Affected Vehicles

• Models: All Range Rover Evoque vehicles equipped with a 6-speed automatic transmission.
• Signs of a Leak: Transmission fluid may appear under the front left side of the vehicle, or you might notice lowered transmission fluid levels or shifting issues.

2. The Problem: Transmission Fluid Leak

A known issue with certain Evoque models is a noticeable transmission fluid leak near the LH front of the vehicle. Transmission fluid is essential for smooth gear shifting and heat reduction within the transmission. If the fluid level drops too low due to a leak, it can lead to significant problems.

Why Fixing This Matters

• Smooth Performance: Proper fluid levels ensure seamless shifting and vehicle responsiveness.
• Avoid Major Repairs: Low or leaking fluid can damage the transmission, leading to expensive repairs or replacements.

3. Root Cause: Chafed Transmission Oil Cooler

Investigation reveals that the transmission oil cooler can become worn by contact with the bonnet release cable. Over time, the constant rubbing can create a leak path in the cooler itself.

Key Culprit

• Bonnet Release Cable: Its position can lead to chafing against the cooler.
• Transmission Oil Cooler: Damage to the cooler causes leakage at the LH front of the vehicle.

4. Required Parts (With Part Numbers)

To permanently resolve this issue, it’s recommended to replace the bonnet release cable retaining clip and the transmission oil cooler. Here are the specific parts:

1. Bonnet Release Cable Retaining Clip

   • Part Number: LR035103
   • Quantity: 1

2. Transmission Oil Cooler

   • Part Number: LR002916
   • Quantity: 1

5. Step-by-Step Remedy

While some skilled DIYers may feel comfortable performing this repair, many owners will benefit from having a professional mechanic handle it. Below is a general overview of what needs to be done:

1. Remove and Discard Old Retaining Clip

   • Locate and remove the existing bonnet release cable retaining clip.
   • Properly discard the old clip to avoid any accidental reuse.

2. Install the New Bonnet Release Cable Retaining Clip

   • Use the new clip (part number LR035103) to secure the bonnet release cable in a position where it won’t contact the oil cooler.
   • Double-check that the cable is routed properly and not touching any parts of the transmission or surrounding components.

3. Replace the Transmission Oil Cooler

   • Remove the old transmission oil cooler (part number LR002916).
   • Install the new oil cooler, ensuring all connections are tight and properly sealed.
   • Fill the transmission with the correct type and amount of fluid, as outlined in the vehicle’s service manual.

4. Final Inspection and Test

   • Inspect the new installation for any signs of leaks or improper fitment.
   • Start the engine and take a short test drive, monitoring transmission performance and fluid levels.
   • Check again for any dripping or seeping from the cooler area post-test.

6. Preventative Measures

Regular Checkups
Inspect the bonnet release cable and the transmission cooler area during routine maintenance. Any early signs of rubbing or wear should be addressed immediately.

Professional Maintenance
For best results, consider having a certified Land Rover technician handle the installation, as they’ll have the specialized knowledge and tools required for this repair.

Timely Repairs
Minor issues can quickly become significant if left unattended. By staying on top of small fixes, you’ll help protect your Evoque’s transmission and maintain its long-term reliability.

Conclusion

A transmission fluid leak in a Range Rover Evoque with a 6-speed automatic transmission often stems from the bonnet release cable chafing against the transmission oil cooler. By replacing the bonnet release cable retaining clip (LR035103) and installing a new transmission oil cooler (LR002916), you can resolve the leak and preserve your transmission’s performance. Regular maintenance and timely repairs are key to keeping your Evoque running at its best.