Current
Range Rover Sport and Vogue differential rebuild, 2013 onwards
The L405 Range Rover and L494 Range Rover Sport share a differential design with a specific, well-documented weakness: a ball-bearing race that collapses long before the taper bearings around it show any wear at all. It produces a whine, then a rumble, then a very large dealer quote.
12 month warranty
We see these constantly, and usually at mileages that surprise the owner. Seventy to ninety thousand miles is typical, and we’ve seen them a long way under that.
The failure pattern is distinctive. Strip a failed unit and the taper bearings look fine. The ball race is destroyed. Land Rover moved to a ball-bearing design in this generation, following a similar move by other manufacturers, and it is simply the weak point of the assembly.
What owners notice first is a whine at motorway speed. It’s easy to blame a wheel bearing, and it often is one, but a wheel bearing noise changes when you load the car in a corner, while a differential whine tends to change with throttle rather than steering. If it whines on the accelerator and goes quiet when you lift, look at the differential.
There’s a second cause worth knowing about. These are wading vehicles, and the differential breather can draw water in when a hot axle is plunged into cold water. Water in the oil destroys bearings quickly and quietly.
A note on part numbers
Land Rover differentials are ratio- and specification-specific, and the suffix matters. Part numbers on these units follow the pattern xPLA-2A413-xx, for example DPLA-2A413-XB or HPLA-2A413-BA. Two units that look identical can have different final drive ratios or different electronic locking hardware, and fitting the wrong one causes driveline binding and a fault message.
Always match to the VIN. Send us the number off your unit and we’ll confirm it before anything is ordered.
Applications
| Vehicle | Chassis | Years | Notes |
|---|---|---|---|
| Range Rover (Vogue) | L405 | 2013–2021 | Front and rear; open and electronic locking rear |
| Range Rover Sport | L494 | 2013–2022 | Front and rear; open and electronic locking rear |
| Land Rover Discovery 5 | L462 | 2017 on | Related family |
| Range Rover Velar | L560 | 2017 on | Related family |
Scroll the table sideways to see every column.
Common faults
| Symptom | Cause | Our fix |
|---|---|---|
| Whine at motorway speed that changes with throttle, not steering | Ball bearing race collapse, the known failure | Full rebuild with uprated bearing set, crown wheel and pinion inspected, backlash and contact pattern set |
| Rumble or grinding, worse under load | Advanced bearing failure with debris circulating | Rebuild; crown wheel and pinion usually need replacing at this stage |
| Clunk on drive take-up | Worn pinion or side gear splines, driveshaft play | Assessed on strip |
| Oil on the differential casing or the tunnel | Pinion seal or cover gasket | Seal and gasket renewed |
| Milky or emulsified oil | Water ingress through the breather after wading | Rebuild, breather extended and repositioned |
| “4x4 system fault” or driveline warning message | Electronic locking differential motor or actuator | Actuator diagnosed and renewed, module tested |
| Binding or wind-up on tight turns | Wrong ratio unit fitted, or electronic differential fault | Ratio verified against VIN, electronic differential tested |
Scroll the table sideways to see every column.
What our rebuild includes
Complete strip and clean. All bearings renewed. Crown wheel and pinion inspected and replaced if the tooth pattern is marked. Backlash set to specification and the contact pattern checked with engineer’s blue and photographed for your records. New seals throughout. Breather modified. Filled with the correct specification oil. Warranted for 12 months.
Service advice
Land Rover treat this oil as fill-for-life. We’d suggest changing it at 60,000 miles, and immediately after any deep wading. It costs very little and it’s the difference between a service and a rebuild.
Exchange units and collection
Rebuilt exchange differentials available subject to stock, with nationwide collection and delivery. Remove the unit and we’ll collect, or send us the car.
What will it cost?
We price a differential rebuild once we know which unit you have and what it is doing. Send us the gearbox number and the symptoms and you will have an answer the same working day, with an indicative price wherever we can give one.
Frequently asked questions
Is it the differential or a wheel bearing?
Differential noise changes with throttle. Wheel bearing noise changes when you load the car in a corner. If you’re not sure, we’ll road test it.
Can I keep driving it?
Briefly and gently. Once debris is circulating, the crown wheel and pinion go too, and the bill roughly doubles.
Will you fit an uprated bearing?
Where a suitable option exists for your unit, yes. That’s the whole point of a rebuild over a like-for-like replacement.
Do I need the exact part number?
For a replacement unit, yes, and the suffix matters. For a rebuild of your own unit, no.
Related
How it works
Sending us a unit
You don’t need to bring the car. Most of what we do arrives on a pallet.
- Drain it. Couriers won’t take a unit full of oil, and it’ll leak.
- Crate or pallet it. A gearbox needs to be strapped to a pallet or in a stout crate. A cardboard box won’t survive.
- Label it. Put your name, telephone number and the vehicle inside the packaging as well as on it. Labels come off in transit.
- Tell us it’s coming. Send the enquiry form first so we know what to expect and can book it in.
We can arrange collection anywhere in mainland UK. Ask when you enquire.
What happens next
- 01You send the enquiry.
- 02We come back the same working day with an initial view and, where we can, an indicative price.
- 03If it needs looking at, we book it in or arrange collection.
- 04We strip and assess, then ring you with a firm price before any work goes ahead.
- 05Rebuilt, tested, returned, warranted for 12 months.
No work happens without your say-so, and there are no surprises on the invoice.
Same working day
Send us the number and what it’s doing
The gearbox number, the vehicle and the symptoms. That is usually enough for a straight answer, and photographs are welcome.