Most Common Car Issues

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Engine Model
AJ120

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MOST COMMON PROBLEMS

LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 X-Dynamic SE is a versatile and robust multipurpose passenger vehicle, equipped with a 3.0L inline-six engine producing 395 hp. This all-wheel-drive SUV ensures safety with standard features like Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning. It combines luxury and technology with its mild hybrid system and modern conveniences such as keyless ignition and an automatic transmission with eight speeds. Built in Slovakia by Jaguar Land Rover Limited, the Defender offers a well-rounded package for both off-road adventures and urban driving.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 S is a robust multipurpose passenger vehicle equipped with a 2.0-liter AJ120 engine delivering 296 hp. It boasts a comprehensive suite of safety features, including standard Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning. This AWD SUV provides a premium driving experience with an 8-speed automatic transmission and advanced driver assistance systems like Pedestrian Automatic Emergency Braking and Crash Imminent Braking. Built in Nitra, Slovakia, it combines luxury and capability with features such as LED headlamps, keyless ignition, and a standard backup camera.

Spec:

Engine Brake (hp) From
296
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
4

Problems:

Overheating
The AJ120 engine, especially in an in-line configuration, can sometimes suffer from overheating due to insufficient cooling, leading to potential engine damage.
Timing chain issues
The timing chain in some AJ120 engines has been known to stretch or fail prematurely, causing timing issues and potentially severe engine damage.
Turbocharger failure
If the Defender model equipped with the AJ120 engine has a turbocharger, it can be prone to failures, which can lead to a loss of power and increased emissions.
Oil leaks
The AJ120 engine may develop oil leaks around the valve cover gasket or oil pan, which can lead to lower oil levels and potential engine damage if not addressed.
Injector problems
Fuel injectors in the AJ120 engine can become clogged or fail, leading to rough idling, poor fuel economy, and reduced engine performance.
Carbon build-up
Direct-injection engines like the AJ120 can suffer from carbon build-up on the intake valves, which can cause misfires and reduced performance over time.
Sensor failures
Various sensors in the AJ120 engine, such as the oxygen sensor or mass air flow sensor, can fail and lead to performance issues or increased emissions.
LAND ROVER Defender 2023

The 2023 Land Rover Defender 90 X-Dynamic SE is a powerhouse with its 3.0L AJ120 engine delivering 395 hp. This AWD SUV boasts advanced safety features like Dynamic Brake Support, Lane Departure Warning, and Blind Spot Intervention. It integrates modern tech such as Adaptive Driving Beam and a backup camera, ensuring both performance and safety. With a mild hybrid system and a robust design, it's ready for any adventure.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Engine misfire
An engine misfire can occur due to issues with the ignition system, fuel system, or engine compression, leading to poor engine performance.
Turbocharger failure
Turbocharger problems can result in a loss of power and efficiency, often caused by oil contamination, wear and tear, or foreign objects damaging the turbine.
Oil leaks
Oil leaks can stem from various points in the engine, such as gaskets, seals, or oil pan, leading to oil loss and potential engine damage.
Overheating
Overheating issues can arise from coolant leaks, a faulty thermostat, a failing water pump, or a clogged radiator, potentially causing severe engine damage.
Timing chain/belt problems
A worn or broken timing chain/belt can lead to improper engine timing, causing poor performance or even engine damage.
Fuel injector issues
Faulty fuel injectors can result in poor fuel delivery, leading to reduced engine performance, increased emissions, and potential engine damage.
Sensor failures
Malfunctioning sensors, such as the oxygen sensor or mass airflow sensor, can cause incorrect air-fuel mixture, leading to poor engine performance and increased emissions.
Dpf (diesel particulate filter) clogging
For diesel engines, the DPF can become clogged, causing increased exhaust backpressure, reduced performance, and potential engine damage.
Exhaust gas recirculation (egr) valve issues
A malfunctioning EGR valve can cause poor engine performance, increased emissions, and potential engine damage due to improper exhaust gas recirculation.
LAND ROVER Defender 2023

The 2023 Land Rover Defender 110 SE is a versatile and robust SUV with a 3.0L AJ120 inline-six engine producing 395 hp. It features a comprehensive suite of safety technologies, including Dynamic Brake Support, Lane Departure Warning, and Forward Collision Warning. The vehicle also incorporates advanced driver assistance systems such as Adaptive Driving Beam and Blind Spot Warning. With a mild hybrid electric system and standard AWD, this model ensures both efficiency and performance.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Engine misfire
An engine misfire can occur due to issues with the ignition system, fuel system, or engine compression, leading to poor engine performance.
Turbocharger failure
Turbocharger problems can result in a loss of power and efficiency, often caused by oil contamination, wear and tear, or foreign objects damaging the turbine.
Oil leaks
Oil leaks can stem from various points in the engine, such as gaskets, seals, or oil pan, leading to oil loss and potential engine damage.
Overheating
Overheating issues can arise from coolant leaks, a faulty thermostat, a failing water pump, or a clogged radiator, potentially causing severe engine damage.
Timing chain/belt problems
A worn or broken timing chain/belt can lead to improper engine timing, causing poor performance or even engine damage.
Fuel injector issues
Faulty fuel injectors can result in poor fuel delivery, leading to reduced engine performance, increased emissions, and potential engine damage.
Sensor failures
Malfunctioning sensors, such as the oxygen sensor or mass airflow sensor, can cause incorrect air-fuel mixture, leading to poor engine performance and increased emissions.
Dpf (diesel particulate filter) clogging
For diesel engines, the DPF can become clogged, causing increased exhaust backpressure, reduced performance, and potential engine damage.
Exhaust gas recirculation (egr) valve issues
A malfunctioning EGR valve can cause poor engine performance, increased emissions, and potential engine damage due to improper exhaust gas recirculation.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 X-Dynamic SE is a versatile SUV with a 3.0L inline-six engine producing 395 hp. It features advanced safety technologies like Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning. This AWD vehicle also boasts a mild hybrid electric system and an 8-speed automatic transmission. Built in Nitra, Slovakia, it emphasizes both performance and safety with standard features such as LED headlamps and multiple airbag locations across all three rows.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
LAND ROVER Defender 2023

The 2023 Land Rover Defender 110 Standard is a versatile SUV equipped with a robust 2.0L AJ120 engine, generating 296 hp. Safety is a top priority, featuring standard Dynamic Brake Support, Lane Departure Warning, Forward Collision Warning, and more. With advanced tech like Adaptive Driving Beam and Blind Spot Intervention, it's designed for both comfort and security. This AWD vehicle, manufactured in Slovakia, combines rugged capability with modern amenities.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
296
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
4

Problems:

Faulty dbs activation
Dynamic Brake Support (DBS) might not engage properly, leading to insufficient braking assistance during emergencies.
Engine overheating
The in-line 4-cylinder AJ120 engine might overheat due to cooling system issues or heavy load conditions.
Turbocharger failure
Turbocharger in high-performance engines can fail, causing loss of power and increased exhaust smoke.
Oil leaks
The AJ120 engine might develop oil leaks from seals and gaskets over time, leading to potential engine damage.
Injector problems
Fuel injectors in the AJ120 engine can get clogged or malfunction, resulting in poor engine performance and fuel efficiency.
Timing chain wear
The timing chain in the AJ120 engine may wear out, causing timing issues and potentially severe engine damage.
Dpf clogging
Diesel Particulate Filter (DPF) can become clogged, leading to reduced engine performance and increased emissions.
Electrical issues
Modern LAND ROVER Defenders can experience electrical problems affecting engine control units and other critical systems.
Egr valve failure
Exhaust Gas Recirculation (EGR) valve can fail or get clogged, affecting engine performance and emissions.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 SE is a sophisticated SUV equipped with a 3.0-liter, 395 hp AJ120 inline-6 engine and an 8-speed automatic transmission. It features advanced safety systems such as Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning, all standard. This all-wheel-drive vehicle also includes modern amenities like LED headlamps, a backup camera, and keyless ignition. Built in Nitra, Slovakia, it boasts a mild hybrid electric system and comprehensive airbag coverage across the first and second rows.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 S, powered by a 2.0L AJ120 in-line 4-cylinder engine producing 296 hp, comes with an 8-speed automatic transmission and AWD. Safety features include standard LDW, FCW, BSW, PAEB, ESC, and a full suite of airbags. The SUV also boasts a backup camera, LED headlamps, and a variety of advanced driver assistance systems. Built in Nitra, Slovakia, this MPV offers robust capabilities and modern conveniences.

Spec:

Engine Brake (hp) From
296
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
4

Problems:

Overheating
The AJ120 engine, especially in an in-line configuration, can sometimes suffer from overheating due to insufficient cooling, leading to potential engine damage.
Timing chain issues
The timing chain in some AJ120 engines has been known to stretch or fail prematurely, causing timing issues and potentially severe engine damage.
Turbocharger failure
If the Defender model equipped with the AJ120 engine has a turbocharger, it can be prone to failures, which can lead to a loss of power and increased emissions.
Oil leaks
The AJ120 engine may develop oil leaks around the valve cover gasket or oil pan, which can lead to lower oil levels and potential engine damage if not addressed.
Injector problems
Fuel injectors in the AJ120 engine can become clogged or fail, leading to rough idling, poor fuel economy, and reduced engine performance.
Carbon build-up
Direct-injection engines like the AJ120 can suffer from carbon build-up on the intake valves, which can cause misfires and reduced performance over time.
Sensor failures
Various sensors in the AJ120 engine, such as the oxygen sensor or mass air flow sensor, can fail and lead to performance issues or increased emissions.
LAND ROVER Defender 2023

The 2023 Land Rover Defender 130 First Edition is a versatile and robust SUV equipped with a 3.0L AJ120 inline-six engine producing 395 hp. It features a comprehensive suite of safety technologies, including Dynamic Brake Support, Lane Departure Warning, Blind Spot Warning, and Forward Collision Warning. This all-wheel-drive vehicle also incorporates mild hybrid electric technology for improved efficiency. With standard features like a backup camera, keyless ignition, and adaptive driving beam, it delivers both performance and convenience.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Engine misfire
An engine misfire can occur due to issues with the ignition system, fuel system, or engine compression, leading to poor engine performance.
Turbocharger failure
Turbocharger problems can result in a loss of power and efficiency, often caused by oil contamination, wear and tear, or foreign objects damaging the turbine.
Oil leaks
Oil leaks can stem from various points in the engine, such as gaskets, seals, or oil pan, leading to oil loss and potential engine damage.
Overheating
Overheating issues can arise from coolant leaks, a faulty thermostat, a failing water pump, or a clogged radiator, potentially causing severe engine damage.
Timing chain/belt problems
A worn or broken timing chain/belt can lead to improper engine timing, causing poor performance or even engine damage.
Fuel injector issues
Faulty fuel injectors can result in poor fuel delivery, leading to reduced engine performance, increased emissions, and potential engine damage.
Sensor failures
Malfunctioning sensors, such as the oxygen sensor or mass airflow sensor, can cause incorrect air-fuel mixture, leading to poor engine performance and increased emissions.
Dpf (diesel particulate filter) clogging
For diesel engines, the DPF can become clogged, causing increased exhaust backpressure, reduced performance, and potential engine damage.
Exhaust gas recirculation (egr) valve issues
A malfunctioning EGR valve can cause poor engine performance, increased emissions, and potential engine damage due to improper exhaust gas recirculation.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 SE is a versatile multipurpose passenger vehicle with a 3.0L inline-six engine producing 395 hp. This AWD SUV comes with advanced safety features including standard lane departure warning, forward collision warning, and blind spot warning. The vehicle also boasts a mild hybrid electric system, LED headlamps, and an 8-speed automatic transmission. Built in Nitra, Slovakia by Jaguar Land Rover Limited, it offers comprehensive airbag coverage across all rows and sophisticated electronic stability control.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 X-Dynamic HSE is a versatile and advanced SUV. It features a 3.0L AJ120 engine with 395 hp, AWD, and an 8-speed automatic transmission. Safety systems include standard LDW, FCW, ACC, PAEB, BSW, and more. This mild hybrid vehicle also offers luxurious touches with keyless ignition and LED headlamps.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 90 Standard is a robust and versatile SUV with a 2.0L, 296 hp AJ120 engine. It features advanced safety systems like Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning. The vehicle comes with standard AWD, an 8-speed automatic transmission, and a host of modern amenities including a backup camera and keyless ignition. Built in Slovakia, this model ensures a safe and comfortable drive with side airbags in both the 1st and 2nd rows and LED headlamps.

Spec:

Engine Brake (hp) From
296
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
4

Problems:

Overheating
The AJ120 engine, especially in an in-line configuration, can sometimes suffer from overheating due to insufficient cooling, leading to potential engine damage.
Timing chain issues
The timing chain in some AJ120 engines has been known to stretch or fail prematurely, causing timing issues and potentially severe engine damage.
Turbocharger failure
If the Defender model equipped with the AJ120 engine has a turbocharger, it can be prone to failures, which can lead to a loss of power and increased emissions.
Oil leaks
The AJ120 engine may develop oil leaks around the valve cover gasket or oil pan, which can lead to lower oil levels and potential engine damage if not addressed.
Injector problems
Fuel injectors in the AJ120 engine can become clogged or fail, leading to rough idling, poor fuel economy, and reduced engine performance.
Carbon build-up
Direct-injection engines like the AJ120 can suffer from carbon build-up on the intake valves, which can cause misfires and reduced performance over time.
Sensor failures
Various sensors in the AJ120 engine, such as the oxygen sensor or mass air flow sensor, can fail and lead to performance issues or increased emissions.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 X-Dynamic HSE is a versatile and robust MPV with a 3.0L AJ120 in-line 6-cylinder engine producing 395 hp. It features advanced safety technologies like Lane Departure Warning, Forward Collision Warning, and Pedestrian Automatic Emergency Braking. The vehicle boasts comprehensive driver assistance systems, including Adaptive Cruise Control and Blind Spot Warning. With AWD, LED headlamps, and mild hybrid electrification, it's equipped for both rugged terrains and urban environments.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
LAND ROVER Defender 2022

The 2022 Land Rover Defender 110 X-Dynamic SE is a highly capable SUV powered by a 3.0L AJ120 in-line six-cylinder engine producing 395 hp. This AWD vehicle is equipped with advanced safety features including Lane Departure Warning, Forward Collision Warning, and Pedestrian Automatic Emergency Braking. The Defender also offers a mild hybrid electric system and a suite of driver-assist technologies like Blind Spot Warning and Rear Cross Traffic Alert. Built in Nitra, Slovakia, it boasts a robust design with a gross vehicle weight rating of up to 7,000 lbs.

Spec:

Engine Brake (hp) From
395
Engine Configuration
In-Line
Engine Model
AJ120
Engine Number of Cylinders
6

Problems:

Oil leaks
Due to the in-line configuration and potential gasket issues, oil leaks can commonly occur, leading to reduced performance and potential engine damage if not addressed promptly.
Overheating
The AJ120 engine, while powerful, may experience cooling system inefficiencies, particularly if the radiator or coolant passages are blocked or if the coolant level is low.
Timing chain problems
The 6-cylinder AJ120 engine may experience timing chain wear or stretching, which can lead to poor engine performance or even catastrophic engine failure if the chain skips a tooth or breaks.
Turbocharger issues
If the Defender model with the AJ120 engine is equipped with a turbocharger, there can be issues with turbo lag, oil supply, or turbo failure due to high stress and heat.
Fuel injector problems
The in-line 6-cylinder configuration may face fuel injector issues, such as clogging or leakage, which can affect engine performance and fuel efficiency.
Sensor failures
Modern engines like the AJ120 are equipped with numerous sensors. Failures in oxygen sensors, mass airflow sensors, or crankshaft position sensors can lead to poor engine performance and diagnostic challenges.
Carbon buildup
Direct injection engines like the AJ120 can suffer from carbon buildup on intake valves, leading to reduced airflow and performance over time.
Exhaust gas recirculation (egr) valve issues
Problems with the EGR valve can lead to poor emissions performance and engine knocking, affecting the overall engine efficiency and compliance with emission standards.
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