The 2015 MERCEDES-BENZ CLA-Class with a 4-cylinder in-line engine is known to develop oil leaks from various seals and gaskets over time.

Some owners have reported problems with the timing chain, which can cause rattling noises and potentially lead to engine damage if not addressed.

The turbocharged variant of this engine may experience turbocharger failures, leading to a loss of power and increased exhaust smoke.

Faulty fuel injectors can cause rough idling, misfires, and poor fuel economy.

There have been occurrences of coolant leaks from the radiator or hoses, which can lead to engine overheating if not fixed.

Direct injection engines, like the one in this model, are prone to carbon build-up on intake valves, leading to reduced performance and efficiency.

Engine mounts may wear out prematurely, causing excessive vibration and noise.

The 2014 Mercedes-Benz CLA-Class with an in-line 4-cylinder engine may experience oil leaks, commonly from the valve cover gasket or oil pan gasket.

This model is equipped with a turbocharged engine that might suffer from turbocharger failures, leading to reduced power and poor acceleration.

The timing chain can stretch or wear out over time, causing rattling noises and potentially serious engine damage if not addressed.

The ignition coils in the 2014 CLA-Class can fail, leading to misfires, rough idling, and engine performance issues.

Fuel injectors can become clogged or fail, causing poor fuel economy, rough running, and difficulty starting the engine.

Coolant leaks, often from the water pump or radiator, can lead to engine overheating issues if not properly maintained.

Direct-injection engines like the one in the 2014 CLA-Class can suffer from carbon buildup on the intake valves, leading to reduced performance and efficiency.

Malfunctions in the electronic throttle control system can cause erratic engine behavior and throttle response problems.

Misfires can occur due to issues with the ignition system, fuel injectors, or a faulty spark plug, which can lead to reduced engine performance and efficiency.

The turbocharger in the M260 engine may develop problems such as oil leaks, bearing wear, or compressor wheel damage, resulting in reduced power and increased emissions.

Direct fuel injection systems can sometimes suffer from clogged or leaking injectors, which can lead to poor fuel economy, rough idling, and increased emissions.

The timing chain may stretch or wear over time, potentially causing engine misfires, poor performance, and even engine damage if not addressed.

Common in many engines, oil leaks can occur from various seals and gaskets, including the valve cover gasket, causing oil loss and potential engine damage if not corrected.

Problems with the water pump, radiator, or thermostat can lead to overheating, which can cause significant engine damage if not promptly addressed.

Various sensors, such as the mass airflow sensor (MAF) or oxygen sensors, may fail and cause the engine to run inefficiently or trigger the check engine light.

Direct injection engines are prone to carbon buildup on intake valves, which can lead to decreased performance, rough idling, and increased fuel consumption.

Though not directly related to the engine, issues with the transmission can affect overall vehicle performance, including rough shifting or transmission slipping.

Modern engines often require software updates to the engine control unit (ECU) to resolve various running issues or to improve performance and efficiency.

The 2014 Mercedes-Benz CLA-Class with an in-line 4-cylinder engine may experience oil leaks, commonly from the valve cover gasket or oil pan gasket.

This model is equipped with a turbocharged engine that might suffer from turbocharger failures, leading to reduced power and poor acceleration.

The timing chain can stretch or wear out over time, causing rattling noises and potentially serious engine damage if not addressed.

The ignition coils in the 2014 CLA-Class can fail, leading to misfires, rough idling, and engine performance issues.

Fuel injectors can become clogged or fail, causing poor fuel economy, rough running, and difficulty starting the engine.

Coolant leaks, often from the water pump or radiator, can lead to engine overheating issues if not properly maintained.

Direct-injection engines like the one in the 2014 CLA-Class can suffer from carbon buildup on the intake valves, leading to reduced performance and efficiency.

Malfunctions in the electronic throttle control system can cause erratic engine behavior and throttle response problems.

DBS may fail to activate during an emergency, leading to increased braking distances and potential accidents.

Could be due to issues with the direct fuel injection system, spark plugs, or ignition coils.

The M133 engine is turbocharged; failure can lead to reduced power and performance.

Commonly found in the valve cover gasket or oil pan, leading to potential engine damage if not addressed.

Could be due to issues with the water pump or radiator, leading to engine overheating.

May cause rattling noises and could lead to severe engine damage if the timing chain slips.

Dirty or faulty injectors can cause poor fuel economy and engine performance.

Direct fuel injection engines are prone to carbon buildup on intake valves, which can affect performance and efficiency.

Can lead to poor throttle response and reduced engine performance.

Misfires can occur due to issues with the ignition system, fuel injectors, or a faulty spark plug, which can lead to reduced engine performance and efficiency.

The turbocharger in the M260 engine may develop problems such as oil leaks, bearing wear, or compressor wheel damage, resulting in reduced power and increased emissions.

Direct fuel injection systems can sometimes suffer from clogged or leaking injectors, which can lead to poor fuel economy, rough idling, and increased emissions.

The timing chain may stretch or wear over time, potentially causing engine misfires, poor performance, and even engine damage if not addressed.

Common in many engines, oil leaks can occur from various seals and gaskets, including the valve cover gasket, causing oil loss and potential engine damage if not corrected.

Problems with the water pump, radiator, or thermostat can lead to overheating, which can cause significant engine damage if not promptly addressed.

Various sensors, such as the mass airflow sensor (MAF) or oxygen sensors, may fail and cause the engine to run inefficiently or trigger the check engine light.

Direct injection engines are prone to carbon buildup on intake valves, which can lead to decreased performance, rough idling, and increased fuel consumption.

Though not directly related to the engine, issues with the transmission can affect overall vehicle performance, including rough shifting or transmission slipping.

Modern engines often require software updates to the engine control unit (ECU) to resolve various running issues or to improve performance and efficiency.

The 2014 Mercedes-Benz CLA-Class with an in-line 4-cylinder engine may experience oil leaks, commonly from the valve cover gasket or oil pan gasket.

This model is equipped with a turbocharged engine that might suffer from turbocharger failures, leading to reduced power and poor acceleration.

The timing chain can stretch or wear out over time, causing rattling noises and potentially serious engine damage if not addressed.

The ignition coils in the 2014 CLA-Class can fail, leading to misfires, rough idling, and engine performance issues.

Fuel injectors can become clogged or fail, causing poor fuel economy, rough running, and difficulty starting the engine.

Coolant leaks, often from the water pump or radiator, can lead to engine overheating issues if not properly maintained.

Direct-injection engines like the one in the 2014 CLA-Class can suffer from carbon buildup on the intake valves, leading to reduced performance and efficiency.

Malfunctions in the electronic throttle control system can cause erratic engine behavior and throttle response problems.

The 2014 Mercedes-Benz CLA-Class with an in-line 4-cylinder engine may experience oil leaks, commonly from the valve cover gasket or oil pan gasket.

This model is equipped with a turbocharged engine that might suffer from turbocharger failures, leading to reduced power and poor acceleration.

The timing chain can stretch or wear out over time, causing rattling noises and potentially serious engine damage if not addressed.

The ignition coils in the 2014 CLA-Class can fail, leading to misfires, rough idling, and engine performance issues.

Fuel injectors can become clogged or fail, causing poor fuel economy, rough running, and difficulty starting the engine.

Coolant leaks, often from the water pump or radiator, can lead to engine overheating issues if not properly maintained.

Direct-injection engines like the one in the 2014 CLA-Class can suffer from carbon buildup on the intake valves, leading to reduced performance and efficiency.

Malfunctions in the electronic throttle control system can cause erratic engine behavior and throttle response problems.

The 2015 MERCEDES-BENZ CLA-Class with a 4-cylinder in-line engine is known to develop oil leaks from various seals and gaskets over time.

Some owners have reported problems with the timing chain, which can cause rattling noises and potentially lead to engine damage if not addressed.

The turbocharged variant of this engine may experience turbocharger failures, leading to a loss of power and increased exhaust smoke.

Faulty fuel injectors can cause rough idling, misfires, and poor fuel economy.

There have been occurrences of coolant leaks from the radiator or hoses, which can lead to engine overheating if not fixed.

Direct injection engines, like the one in this model, are prone to carbon build-up on intake valves, leading to reduced performance and efficiency.

Engine mounts may wear out prematurely, causing excessive vibration and noise.