Most Common Car Issues

Selected parameters

Model Year
2021
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

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MOST COMMON PROBLEMS

MERCEDES-BENZ E-Class 2021

The 2021 Mercedes-Benz AMG E63 S is a high-performance passenger car with a 3.0L V6 engine featuring direct fuel injection and turbocharging. It has a 9-speed automatic transmission and advanced safety features, including side and front airbags for the 1st and 2nd rows. Manufactured in Sindelfingen, Germany, this model is equipped with a water-cooled engine and a direct TPMS. As a Class 1 vehicle, it offers comfort and safety with pretensioners and load limiters in all seat belts.

Spec:

Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
6
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
The M177 engine can develop oil leaks often around the valve cover gaskets or oil pan.
Timing chain issues
This engine may experience timing chain stretching, leading to poor performance and potential engine damage if not addressed.
Carbon buildup
Direct fuel injection engines like the M177 can suffer from carbon buildup on the intake valves, affecting engine efficiency and performance.
Turbocharger failure
The turbocharger in the M177 engine can fail prematurely, leading to loss of power and potential engine damage.
Coolant leaks
Coolant leaks, particularly from the water pump or hoses, are common and can lead to engine overheating if not repaired.
Misfiring
This engine can suffer from misfiring issues, which might be due to faulty spark plugs, ignition coils, or fuel injectors.
Fuel system issues
Problems with the high-pressure fuel pump or fuel injectors can lead to poor fuel delivery and performance issues.
MERCEDES-BENZ C-Class 2021

The 2021 Mercedes-Benz AMG C 63 is a high-performance passenger car with a 4.0L V8 engine, producing power through direct fuel injection and turbocharging. It features advanced safety systems such as Dynamic Brake Support, Forward Collision Warning, and Blind Spot Warning as standard. Luxurious and tech-savvy, it offers optional features like Lane Departure Warning, Adaptive Cruise Control, and Parking Assist. With seating for five, it includes modern comforts and safety with side airbags for both rows and LED headlamps.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
8
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
The M177 engine used in the 2021 Mercedes-Benz C-Class can be prone to oil leaks, often from the valve cover gaskets or the oil pan gasket.
Turbocharger issues
This engine features a turbocharger which can occasionally suffer from problems such as turbo lag, reduced performance, or failure due to wear and tear.
Carbon buildup
The direct fuel injection system can lead to carbon buildup on the intake valves, which can affect engine performance and fuel efficiency.
Timing chain wear
Over time, the timing chain can stretch or wear out, which can lead to poor engine performance or even engine damage if not addressed.
Cooling system problems
The cooling system in the M177 engine can sometimes develop leaks or fail to maintain proper engine temperature, leading to overheating issues.
Sensor failures
Various engine sensors, such as the oxygen sensor or mass airflow sensor, may fail over time and affect engine performance and emissions.
Fuel injector issues
Direct fuel injectors can become clogged or fail, leading to poor engine performance, misfires, or reduced fuel efficiency.
MERCEDES-BENZ E-Class 2021

The 2021 Mercedes-Benz AMG E53 is a high-performance passenger car with a 3.0L V6 engine featuring turbocharging and direct fuel injection. It offers advanced safety features such as Dynamic Brake Support (DBS), Forward Collision Warning (FCW), and Automatic Crash Notification (ACN). Standard amenities include a backup camera, blind spot warning, and keyless ignition. Optional features include Adaptive Driving Beam (ADB), Lane Centering Assistance, and Adaptive Cruise Control (ACC). The vehicle is manufactured in Bremen, Germany.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M256
Engine Number of Cylinders
6
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Engine misfire
Misfires can occur due to issues with the fuel injectors, ignition coils, or spark plugs, especially in direct fuel injection engines.
Turbocharger failure
Turbochargers can fail due to oil contamination, lack of maintenance, or excessive heat, leading to reduced engine performance.
Carbon build-up
Direct fuel injection engines are prone to carbon deposits on the intake valves, which can affect engine performance and efficiency.
Timing chain issues
The M256 engine may experience timing chain stretch or failure, which can lead to engine misalignment and potential damage.
Oil leaks
V-shaped engines like the M256 are susceptible to oil leaks from the valve cover gaskets or oil pan, which can lead to low oil levels and engine damage.
Cooling system problems
The engine's cooling system may develop leaks or failures in the radiator, water pump, or hoses, leading to overheating issues.
Electronic control unit (ecu) failures
Issues with the ECU can lead to various engine performance problems, including poor fuel economy and reduced power output.
Sensor failures
Malfunctions of sensors such as the oxygen sensor, mass airflow sensor, or camshaft position sensor can lead to incorrect engine operation and error codes.
Dynamic brake support (dbs) malfunction
Although primarily a braking system feature, any issues with the DBS can impact overall vehicle safety and performance, necessitating diagnostics and repair.
MERCEDES-BENZ C-Class 2021

The 2021 Mercedes-Benz AMG C63 S is a high-performance passenger car featuring a 4.0L V8 engine with direct fuel injection and turbocharging. It comes standard with advanced safety features like Dynamic Brake Support (DBS), Forward Collision Warning (FCW), and Blind Spot Warning (BSW). Optional driving aids include Adaptive Cruise Control (ACC) and Lane Centering Assistance. With seating for four and a luxurious interior, this model combines power and comfort seamlessly.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
8
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
The M177 engine used in the 2021 Mercedes-Benz C-Class can be prone to oil leaks, often from the valve cover gaskets or the oil pan gasket.
Turbocharger issues
This engine features a turbocharger which can occasionally suffer from problems such as turbo lag, reduced performance, or failure due to wear and tear.
Carbon buildup
The direct fuel injection system can lead to carbon buildup on the intake valves, which can affect engine performance and fuel efficiency.
Timing chain wear
Over time, the timing chain can stretch or wear out, which can lead to poor engine performance or even engine damage if not addressed.
Cooling system problems
The cooling system in the M177 engine can sometimes develop leaks or fail to maintain proper engine temperature, leading to overheating issues.
Sensor failures
Various engine sensors, such as the oxygen sensor or mass airflow sensor, may fail over time and affect engine performance and emissions.
Fuel injector issues
Direct fuel injectors can become clogged or fail, leading to poor engine performance, misfires, or reduced fuel efficiency.
MERCEDES-BENZ AMG GT 2021

This 2021 Mercedes-Benz AMG GT63 S is a high-performance passenger car with a 3.0L V6 engine featuring direct fuel injection and a turbocharger. It offers advanced safety features such as Forward Collision Warning (FCW), Blind Spot Warning (BSW), and various optional driving assists like Adaptive Cruise Control (ACC) and Lane Centering Assistance. The vehicle is equipped with standard luxuries including a backup camera, LED headlamps, and 20-inch wheels. Built in Sindelfingen, Germany, it combines luxury and performance in a sleek, four-door design.

Spec:

Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
8
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
V8 engines, like the M177, often develop oil leaks from valve cover gaskets, oil pan gaskets, or timing cover gaskets due to high operating temperatures.
Carbon build-up
Direct fuel injection engines are prone to carbon build-up on intake valves, which can lead to reduced performance and misfires.
Turbocharger issues
Turbocharged engines, such as the one in the AMG GT, can experience turbo failure due to oil contamination, excessive heat, or bearing wear.
Cooling system problems
High-performance engines generate a lot of heat, and cooling system components (radiators, water pumps, and thermostats) may fail prematurely.
Timing chain wear
The timing chain in the M177 engine can stretch over time, leading to poor engine performance and potential engine damage if not addressed.
Fuel injector failures
Direct fuel injection systems can suffer from clogged or failing fuel injectors, leading to poor fuel economy and misfires.
Exhaust gas recirculation (egr) issues
EGR valves can become clogged or fail, leading to increased emissions and reduced engine efficiency.
Ignition coil failures
V8 engines have multiple ignition coils, and failure of one or more can cause misfiring and rough running.
Pcv system failure
The Positive Crankcase Ventilation (PCV) system can become clogged, leading to increased oil consumption and potential engine damage.
Cylinder deactivation problems
Some modern V8 engines include cylinder deactivation technology, which can malfunction and cause rough running or reduced performance.
MERCEDES-BENZ E-Class 2021

The 2021 MERCEDES-BENZ E-Class AMG E63 S is a high-performance passenger car featuring a 3.0L V6 engine with direct fuel injection and a turbocharger. It has a 9-speed automatic transmission and advanced safety features including side and front airbags for both the 1st and 2nd rows. Built in Sindelfingen, Germany, this vehicle boasts a dual overhead camshaft design and manual seat belts with pretensioners and load limiters. With a gross vehicle weight rating under 6,000 lbs, it offers a blend of luxury and performance.

Spec:

Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
6
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
The M177 engine can develop oil leaks often around the valve cover gaskets or oil pan.
Timing chain issues
This engine may experience timing chain stretching, leading to poor performance and potential engine damage if not addressed.
Carbon buildup
Direct fuel injection engines like the M177 can suffer from carbon buildup on the intake valves, affecting engine efficiency and performance.
Turbocharger failure
The turbocharger in the M177 engine can fail prematurely, leading to loss of power and potential engine damage.
Coolant leaks
Coolant leaks, particularly from the water pump or hoses, are common and can lead to engine overheating if not repaired.
Misfiring
This engine can suffer from misfiring issues, which might be due to faulty spark plugs, ignition coils, or fuel injectors.
Fuel system issues
Problems with the high-pressure fuel pump or fuel injectors can lead to poor fuel delivery and performance issues.
MERCEDES-BENZ C-Class 2021

The 2021 Mercedes-Benz AMG C 63 is a high-performance passenger car featuring a 4.0L V8 engine with a turbocharger. It offers advanced safety features like Dynamic Brake Support, Forward Collision Warning, and Blind Spot Warning as standard. Optional features include Lane Departure Warning, Adaptive Cruise Control, and Parking Assist. With a robust suite of technology and safety, this vehicle is designed for both performance and comfort.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
8
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
The M177 engine used in the 2021 Mercedes-Benz C-Class can be prone to oil leaks, often from the valve cover gaskets or the oil pan gasket.
Turbocharger issues
This engine features a turbocharger which can occasionally suffer from problems such as turbo lag, reduced performance, or failure due to wear and tear.
Carbon buildup
The direct fuel injection system can lead to carbon buildup on the intake valves, which can affect engine performance and fuel efficiency.
Timing chain wear
Over time, the timing chain can stretch or wear out, which can lead to poor engine performance or even engine damage if not addressed.
Cooling system problems
The cooling system in the M177 engine can sometimes develop leaks or fail to maintain proper engine temperature, leading to overheating issues.
Sensor failures
Various engine sensors, such as the oxygen sensor or mass airflow sensor, may fail over time and affect engine performance and emissions.
Fuel injector issues
Direct fuel injectors can become clogged or fail, leading to poor engine performance, misfires, or reduced fuel efficiency.
MERCEDES-BENZ E-Class 2021

The 2021 MERCEDES-BENZ AMG E63 S is a sophisticated passenger car with a 4.0L V8 engine (M177) featuring direct fuel injection and turbocharging. This left-hand drive vehicle comfortably seats five and comes equipped with advanced safety features like Dynamic Brake Support, Forward Collision Warning, and Blind Spot Warning as standard. Optional features include Adaptive Driving Beam, Lane Centering Assistance, and Adaptive Cruise Control. Built in Sindelfingen, Germany, it boasts a 9-speed automatic transmission and a robust suite of standard electronic stability and traction control systems.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M177
Engine Number of Cylinders
8
Engine Stroke Cycles
4
Other Engine Info
DIRECT FUEL INJECTION, L-9, TC

Problems:

Oil leaks
V-shaped engines like the M177 can be prone to oil leaks from the valve covers and other seals due to their complex design
Timing chain issues
The M177 engine has been known to experience premature timing chain wear, which can lead to serious engine damage if not addressed
Carbon build-up
Direct fuel injection engines, including the M177, can suffer from carbon build-up on intake valves, which can affect performance and fuel economy
Turbocharger failure
Turbocharged engines, like the M177, can experience turbocharger failures due to high operating temperatures and pressures
Coolant leaks
The complex cooling systems in modern engines, including the M177, can develop leaks at various points, such as the water pump or radiator
Electrical issues
Advanced electronic systems in modern vehicles, like the 2021 E-Class, can suffer from electrical problems that affect engine performance and drivability
Fuel injector problems
Direct fuel injection systems can experience issues with fuel injectors becoming clogged or failing, leading to poor engine performance
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