Most Common Car Issues

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Engine Brake (hp) From
621

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MOST COMMON PROBLEMS

MERCEDES-BENZ S-Class 2017

The 2017 Mercedes-Benz AMG S65 is a luxury 2-door passenger car equipped with a powerful 6.0L V12 engine producing 621 hp. It features advanced safety systems including Dynamic Brake Support, Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning. The vehicle also comes standard with Adaptive Cruise Control, a backup camera, and parking assist. Built in Sindelfingen, Germany, it boasts a sleek design with a left-hand drive configuration and a 7-speed automatic transmission.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
621
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M279
Engine Number of Cylinders
12
Engine Stroke Cycles
4
Other Engine Info
TC, L-7, DFI

Problems:

Engine misfire
V-shaped engines, especially those with 12 cylinders, can experience misfires due to complexities in fuel and air distribution.
Turbocharger issues
The engine is equipped with a turbocharger (TC), which can suffer from lag, overboost, or mechanical failure.
Timing chain problems
V12 engines like the M279 are known for timing chain wear, which can lead to engine timing issues.
Fuel injector malfunction
Direct Fuel Injection (DFI) systems can have problems with clogged or leaking fuel injectors.
Overheating
High-performance engines with complex configurations are prone to overheating, often due to cooling system failures.
Oil consumption
V12 engines can have higher oil consumption, leading to frequent top-offs and potential oil leaks.
Electrical system malfunctions
Modern engines have complex electrical systems that can fail, affecting engine performance and Dynamic Brake Support.
Exhaust gas recirculation (egr) problems
Issues with the EGR system can lead to poor emissions performance and engine knocking.
Wear and tear
High-performance engines experience more wear and tear, leading to a shorter lifespan of components like spark plugs and belts.
Vibration and noise
V-shaped 12-cylinder engines can produce more vibration and noise, which may require additional damping measures.
BENTLEY Continental 2011

The 2011 Bentley Continental Supersports is a luxurious convertible with a powerful 6.0-liter W12 twin-turbocharged engine producing 621 hp. Built in Crewe, UK, this high-performance vehicle features advanced safety systems, including a full set of airbags and a roll-over protection system. Its elegant design and top-tier engineering make it a standout in the world of luxury sports cars.

Spec:

Engine Brake (hp) From
621
Engine Configuration
W Shaped
Engine Model
Catalyst LEV II
Engine Number of Cylinders
12
Other Engine Info
Twin-Turbocharged

Problems:

Oil leaks
High-performance engines like the W12 in the Bentley Continental often experience oil leaks due to the complexity of the engine design and the high pressures involved.
Turbocharger failure
The twin-turbocharged setup can sometimes lead to turbocharger wear or failure, especially if the engine isn't properly maintained.
Cooling system issues
The W-shaped 12-cylinder engine generates a lot of heat, which can put a strain on the cooling system, leading to potential overheating problems.
Fuel system problems
High-performance engines can experience issues with fuel injectors or fuel pumps, which can affect engine performance and efficiency.
Ignition system wear
Given the high horsepower and complexity, the ignition system components (spark plugs, coils) may wear out faster than in standard engines.
Timing chain/tensioner wear
The timing chain and its tensioners can experience wear over time, leading to potential issues with engine timing and performance.
Carbon build-up
Direct injection engines, like the one in the Bentley Continental, are prone to carbon build-up on intake valves over time, which can affect engine performance.
MERCEDES-BENZ S-Class 2017

The 2017 MERCEDES-BENZ AMG S65 is a luxury passenger car featuring a 6.0L V12 engine with 621 hp, a 7-speed automatic transmission, and rear-wheel drive. Safety and driver-assist features include Dynamic Brake Support, Lane Departure Warning, Forward Collision Warning, and Blind Spot Warning. The vehicle seats four and comes equipped with advanced systems such as Adaptive Cruise Control, Pedestrian Automatic Emergency Braking, and a backup camera. Built in Sindelfingen, Germany, it boasts a high level of comfort and advanced technology typical of the Mercedes-Benz brand.

Spec:

Dynamic Brake Support (DBS)
Standard
Engine Brake (hp) From
621
Engine Configuration
V-Shaped
Engine Manufacturer
Daimler
Engine Model
M279
Engine Number of Cylinders
12
Engine Stroke Cycles
4
Other Engine Info
TC, L-7, DFI

Problems:

Engine misfire
V-shaped engines, especially those with 12 cylinders, can experience misfires due to complexities in fuel and air distribution.
Turbocharger issues
The engine is equipped with a turbocharger (TC), which can suffer from lag, overboost, or mechanical failure.
Timing chain problems
V12 engines like the M279 are known for timing chain wear, which can lead to engine timing issues.
Fuel injector malfunction
Direct Fuel Injection (DFI) systems can have problems with clogged or leaking fuel injectors.
Overheating
High-performance engines with complex configurations are prone to overheating, often due to cooling system failures.
Oil consumption
V12 engines can have higher oil consumption, leading to frequent top-offs and potential oil leaks.
Electrical system malfunctions
Modern engines have complex electrical systems that can fail, affecting engine performance and Dynamic Brake Support.
Exhaust gas recirculation (egr) problems
Issues with the EGR system can lead to poor emissions performance and engine knocking.
Wear and tear
High-performance engines experience more wear and tear, leading to a shorter lifespan of components like spark plugs and belts.
Vibration and noise
V-shaped 12-cylinder engines can produce more vibration and noise, which may require additional damping measures.
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