Car Leaking Oil
A few weeks earlier, everything looked fine.
After a recent health check at the main Land Rover dealership, Mr F’s Discovery Sport appeared in excellent shape.
Then a light oil patch showed up on his driveway… Talk about a nightmare. While small, it’s a clear warning of a car leaking oil. And once oil starts to leak, it can worsen quickly, leading to overheating, friction, and costly repairs.
Which is the last thing you want to deal with, right?
When Mr F visited Ystrad Service Centre, Ystrad Mynach, for a scheduled Land Rover service, he mentioned the oil patch to our technicians. We made it a priority to locate the cause and prevent further damage.
Our task was clear: identify the source, fix the problem, and protect the vehicle from expensive damage.
Listening First: Finding the Land Rover Oil Leak Source
At Ystrad Service Centre, Ystrad Mynach, every accurate diagnosis starts with listening carefully.
Mr F described when he first saw the oil patches on his driveway and whether they increased after longer journeys. Those small observations help us identify potential causes before we even touched a tool.
A quick visual inspection under the vehicle confirmed oil residue along the drivetrain, which is enough to confirm the leak was present, but not enough to find its origin.
Our experts connected our Land Rover diagnostic system to perform a full scan for stored fault codes. But, with no codes present, the team moved on to a physical inspection to trace the problem.
The underside of the Land Rover Discovery Sport was cleaned to remove existing oil residue, allowing any new oil traces to show clearly. We checked and topped up the transfer box oil level, then completed a controlled road test to replicate the conditions.
When the Discovery Sport returned to Ystrad Service Centre, Ystrad Mynach, new oil markings were visible, confirming the leak and guiding our next stage of investigation.
As your local independent Land Rover experts, our technicians work with dealer-level diagnostic equipment and manufacturer data, providing accurate, trusted results with a personal touch. On top of this, you get better than dealership value and faster lead times.
Locating the Source of the Land Rover Oil Leak
After road testing Mr F’s Discovery Sport, fresh oil traces were visible around the transfer box which is also known as the Power Transfer Unit (PTU). This crucial component controls power distribution to the rear wheels in all-wheel-drive operation.
By referencing Land Rover’s official repair information, our team confirmed that PTU leaks are occasionally found on Discovery Sport models. These leaks usually stem from wear to the input seal and sleeve joint.
With that confirmation, our Land Rover team removed the Discovery Sport’s PTU for a closer inspection.
Once removed, the cause of the oil leak was evident:
- The input seal was cracked and no longer sealing properly.
- The sleeve surface had worn from friction and heat.
Together, they created a constant route for oil to escape.
Due to the PTU only holding a small amount of oil, even minor leakage can lead to rapid internal wear. Fortunately, Mr F mentioned the issue during his service at Ystrad Service Centre, Ystrad Mynach, allowing our technicians to prevent significant damage.
Repairing the Fault: Precision Without Compromise
Before our team began the repair, we called Mr F to discuss our findings and confirm the plan to stop the Land Rover oil leak.
At Ystrad Service Centre, Ystrad Mynach, we believe in being honest and open from the start. We ensure you fully agree with the work before we begin a repair. You stay in complete control from start to finish.
Once Mr F approved our recommended fix, our Land Rover experts moved from diagnosis to detailed repair. Fixing a Land Rover PTU leak takes more than just fitting a new seal. It requires skill, alignment accuracy, and strict adherence to Land Rover guidelines.
Here’s how our technicians carried out the repair:
- Documenting alignment: The PTU’s alignment with the gearbox was recorded before disassembly. Maintaining this geometry ensures the new seal sits correctly when refitted.
- Inspecting all sealing surfaces: Each mating surface, sleeve, and internal component was examined for wear, corrosion, or marks that could compromise the new seal’s performance.
- Installing genuine Land Rover components: We fitted an official Land Rover seal and sleeve kit, ensuring both parts matched perfectly for complete sealing integrity and durability.
- Setting accurate tolerances: With Land Rover installer tools, we fitted the components to precise depth and alignment. Correct tolerances are essential for oil retention and consistent performance.
- Replacing single-use fasteners: Every one-time-use fixing was replaced and torqued to the correct specification to maintain secure clamping pressure and prevent movement.
- Refilling and leak check: Once reassembled, the PTU was filled with the correct Land Rover-approved oil, checked for levels, and inspected for any signs of oil seepage.
- Final quality check: The entire assembly was cleaned, visually inspected, and verified before testing confirmed complete sealing and function.
Every stage in this process matters. It’s the combination of precision and discipline that ensures reliability and lasting protection for your Land Rover.
Verifying a Complete Land Rover Repair
Once the Land Rover Discovery Sport’s PTU was rebuilt, our team performed a complete quality control sequence, finishing with an extended road test to confirm the vehicle’s oil leak issue had been solved.
The results showed:
- No oil leaks.
- No oil residue.
- No system errors or fault codes.
Mr F’s Land Rover Discovery Sport drove exactly as intended – refined, stable, and with the car leaking oil issue completely fixed.
That certainty isn’t accidental. It’s the result of methodical testing, where each phase is documented and confirmed before proceeding. Every check supports long-term reliability and ensures the repair meets manufacturer standards.
After successful validation, we completed the Land Rover service. Mr F’s Discovery Sport passed each test and was returned to him in peak working condition and ready for the road.
Lasting Results You Can Rely On
When Mr F arrived to collect his Land Rover, we showed him the old seal and sleeve that had caused the oil leak and explained exactly how the repair was completed.
At Ystrad Service Centre, Ystrad Mynach, we make transparency a priority. Walking you through the repair builds understanding and lasting trust, while providing you with peace of mind the repair has been completed to a high standard.
Seeing the components in person helped Mr F appreciate how quickly a car leaking oil can develop into costly problems and why timely intervention is crucial.
He was pleased to see the Land Rover oil leak repair and service was completed sooner than a dealership could schedule and to the same level of precision.
Every stage of the repair was recorded, verified, and completed to manufacturer standards, ensuring dependable performance well into the future.
Land Rover Oil Leak? Let Ystrad Service Centre Repair it
If you’ve seen oil beneath your Land Rover, don’t wait around for the problem to worsen. An oil leak can quickly develop into something far more serious, leaving you with expensive repair bills.
At Ystrad Service Centre, Ystrad Mynach, our experts locate and repair Land Rover oil leaks using genuine components, approved fluids, and the same diagnostic systems used by main dealers. You’ll receive expert precision with the approachable service of an independent garage.
Why drivers choose Ystrad Service Centre:
Here’s why Land Rover owners across Ystrad Mynach, Caerphilly, and Cardiff trust our team for quality, transparency, and reliable workmanship:
- Land Rover-trained technicians with main-dealer diagnostics
- Genuine parts and oils for lasting performance
- 12-month parts and labour guarantee
- Courtesy cars available for your convenience
Join the {{review-count}} customers who’ve rated us {{average-rating}} stars for trusted repairs and great value.
If your car is leaking oil, contact Ystrad Service Centre, Ystrad Mynach for lasting solutions and dependable care.
Call 01443 540460 to book your Land Rover inspection today.
