MajorCommonTransmission

Land Rover Range Rover Sport: ATC Transfer Case Motor Failure & Diff Lock Errors

ATC Transfer Case Motor Failure & Diff Lock Errors is a common transmission fault on the Land Rover Range Rover Sport on the 2005–2013 cars, and we rate it major. Putting it right costs $950 to $3,200 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 25 documented faults on the Land Rover Range Rover Sport.

Vehicle: Land Rover Range Rover Sport
Years: 2005–2013
Gearbox: auto
System: Transmission

This page covers the Land Rover Range Rover Sport as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Land Rover Range Rover Sport faults25 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Transfer case or Differential yet. We would rather show none than show a picture of a different part.

What goes wrong

The L320 Sport Active Transfer Case uses the same externally-mounted electric actuator design as the L322, with a plastic-housed motor and position sensor exposed to road water, mud ingress, and thermal stress. Corrosion of the multi-pin electrical connector is the predominant failure mechanism — moisture tracks into the connector under vibration and thermal cycling, causing pin oxidation that the TCM reads as a position fault. The result is a Transfer Box Fault warning and loss of range selection capability. The L320 Sport's lower ride height and more road-oriented buyer profile means units often remain unfixed longer than on the L322, as owners assume the fault is minor.

What you would notice

Transfer Box Fault warning illuminated
Diff Lock Unavailable warning on instrument cluster
Unable to select low range for off-road use
High/low range shift fails to complete
Multiple 4WD system warnings simultaneously

How to check it

Where to look. ATC actuator motor on passenger side of transfer case, accessible from beneath vehicle under centre tunnel

Inspect the ATC motor connector housing for corrosion, water intrusion marks, or green oxide on pins.
Test range selection in both directions.
Check underneath for evidence of deep mud or water exposure at the transfer case area.
If a workshop inspection is possible: Read transfer case fault codes with a compatible diagnostic scanner.

Parts involved: Transfer case, Differential.

What it costs to put right

$950 to $3,200 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Has the transfer case actuator motor or connector been replaced?”
“Can you demonstrate high and low range selection without fault messages?”
“Has the vehicle been used off-road or driven through deep water?”

Now check the Land Rover Range Rover Sport you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Land Rover Range Rover Sport buyer questions

Is atc transfer case motor failure & diff lock errors serious on a Land Rover Range Rover Sport?

We rate it major and common on the Land Rover Range Rover Sport. The L320 Sport Active Transfer Case uses the same externally-mounted electric actuator design as the L322, with a plastic-housed motor and position sensor exposed to road water, mud ingress, and thermal stress. Corrosion of the multi-pin electrical connector is the predominant failure mechanism — moisture tracks into the connector under vibration and thermal cycling, causing pin oxidation that the TCM reads as a position fault. The result is a Transfer Box Fault warning and loss of range selection capability. The L320 Sport's lower ride height and more road-oriented buyer profile means units often remain unfixed longer than on the L322, as owners assume the fault is minor.

How much does it cost to fix on a Land Rover Range Rover Sport?

$950 to $3,200 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Land Rover Range Rover Sport years are affected?

Our research records this fault on the 2005–2013 Land Rover Range Rover Sport. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Inspect the ATC motor connector housing for corrosion, water intrusion marks, or green oxide on pins. Test range selection in both directions. Check underneath for evidence of deep mud or water exposure at the transfer case area. If a workshop inspection is possible: Read transfer case fault codes with a compatible diagnostic scanner. Look here: ATC actuator motor on passenger side of transfer case, accessible from beneath vehicle under centre tunnel