The new Defender gets plenty of attention online for Land Rover reliability, but in our experience the 3.0-litre D300 and D350 diesels are generally fantastic vehicles when properly maintained.
- Fuel Type
- Diesel
- Engine
- 3.0 D300 / D350
Technician Overview
The new Defender gets plenty of attention online for Land Rover reliability, but in our experience the 3.0-litre D300 and D350 diesels are generally fantastic vehicles. On the whole, they are strong and reliable when properly maintained.
Service History Is Essential
On a vehicle at this price point, we'd want to see a complete documented service history. One thing we particularly like to see is more frequent oil servicing.
Land Rover's servicing can allow long intervals depending on model and usage, but from a technician's point of view, an owner who has changed the engine oil every year rather than stretching it towards a long mileage/time interval is a big positive. Fresh oil is cheap compared with engines, turbochargers and timing components.
Engine Management Lights / Exhaust Sensors
Probably one of the more common issues we've come across is an engine management light caused by exhaust after-treatment sensors. Sensors within the emissions system can become blocked, contaminated or simply fail.
Depending on the fault, you may see:
- Engine management light
- Exhaust/emissions warnings
- Reduced performance
- AdBlue or emissions-related messages
Don't automatically assume an EML means something catastrophic, but equally don't buy one with the light illuminated without having the actual fault codes diagnosed first. Clearing the fault code before sale isn't the same as fixing the fault.
What We'd Look For
On a used D300 or D350 Defender we'd prioritise:
- Full service history
- Evidence of regular oil changes
- No outstanding engine management lights
- Clean cold start
- No exhaust/emissions warnings
- Evidence that previous faults have been properly diagnosed and repaired
Technician Verdict
One of the Land Rovers we'd happily recommend when the history is right. We'd actively look for a vehicle that's had yearly maintenance rather than one that's been run right up to the maximum permitted service intervals.
Alfie has over 11 years of experience in the motor trade and founded Alfa Prestige to give buyers the insider knowledge that was previously only available to professionals.
