Can a Mercedes-Benz S-Class with a 48V motor failure still be driven?

2 Answers
LaVivian
07/24/25 2:48am
Mercedes-Benz S-Class with a 48V motor failure cannot be driven. Clogged air filter or: Results in an overly rich air-fuel mixture, incomplete engine combustion, and poor acceleration. In this case, the exhaust pipe emits heavy black smoke. Cracks in the fuel line or loose joints causing air leaks, or insufficient fuel pump pressure, lead to poor fuel supply, affecting acceleration performance. Electrical faults: Issues with the air flow meter reduce the intake air volume, causing the air-fuel mixture to be too rich or too lean, which affects acceleration performance. Damage to individual cylinder spark plugs also impacts acceleration performance. Mechanical faults: Wear and tear on engine valves, cylinder liners, pistons, and rings result in insufficient cylinder pressure. Excessive intake valve clearance, insufficient exhaust valve clearance, or damaged intake/exhaust valves can cause cylinder misfires, affecting acceleration performance.
Was this review help?
17
3
Share
OliveAnn
08/10/25 10:25pm
I remember that in the Mercedes-Benz S-Class, the 48V motor acts like an invisible assistant, aiding in start-up and energy saving. If it malfunctions, the car can still be driven, but the problem is serious. The most common scenario is the system entering 'limp mode,' which restricts the start-stop function and acceleration performance. You'll feel the power is sluggish, fuel consumption surges by nearly 30%, and a bunch of warning lights may come on. I've seen several cases: if it's a minor electrical issue, moving a short distance to a repair shop is possible, but never take it on the highway or for long trips, as it can easily cause battery overheating or affect other systems, such as the transmission. In such cases, hurry to a 4S shop or a Mercedes-specialized repair shop for a diagnosis—scanning the fault codes with a computer is key. Don't delay; safety comes first. For prevention, regularly check the electrical system to avoid voltage instability damaging the motor, ensuring the luxury car maintains its vitality.
Was this review help?
4
1
Share
Expand All
More Forum Discussions

How about the three major components of the Roewe RX5 MAX?

The three major components of the Roewe RX5 MAX are quite good. In terms of the engine: the Roewe RX5 MAX is equipped with SAIC's 'Blue Core' 1.5T and 2.0T engines. The 1.5T engine has a maximum power of 127kW and a maximum torque of 275Nm; the 2.0T engine has a maximum power of 170kW and a maximum torque of 370Nm. In terms of the transmission: the 1.5T Roewe RX5 MAX is paired with a 6AT transmission jointly developed by SAIC and General Motors North America, which offers good smoothness and stability; the 2.0T version is paired with a 6-speed wet dual-clutch transmission co-developed by SAIC and BorgWarner. This dual-clutch transmission can withstand a maximum torque of 360Nm and has a shift interval of only 0.2 seconds. In terms of the chassis: the suspension is a common front MacPherson and rear multi-link independent setup, with a comfort-oriented damping tuning that provides good vibration filtering. Additionally, the full-frame subframe enhances safety to a certain extent.
9
2
Share

What are the rules for the ten free maintenance services offered by Nissan?

The ten free maintenance services commonly offered by Nissan typically waive the material costs for basic maintenance, such as engine oil and oil filters. However, specific rules may vary, so it's advisable to consult your local 4S dealership or the manufacturer for details. If you signed a maintenance contract when purchasing the car, the ten free services will have corresponding documentation. However, if no such contract was signed and the agreement was only verbal, it may be difficult to guarantee the services. It's important to note that even if the contract states the provision of ten free maintenance services, you should clarify the following: 1. Whether the promotion is offered by the manufacturer or the 4S dealership. Manufacturer promotions allow free maintenance at any 4S dealership nationwide, while 4S dealership promotions may have regional restrictions. 2. Besides oil and oil filter changes, what other services are included in the ten free maintenance services? Also, clarify whether the provided oil is mineral, semi-synthetic, or fully synthetic. 3. Whether labor fees are charged for the free maintenance services.
20
4
Share

Why do Volkswagen cars require 95-octane gasoline?

Volkswagen cars use 95-octane gasoline because most models in Volkswagen's lineup are equipped with turbocharged engines. The turbocharger performs more powerfully during high-speed driving, thus requiring strict fuel specifications. Compared to 92-octane gasoline, 95-octane has better anti-knock properties, making it more suitable for Volkswagen vehicles. Below is an introduction to gasoline octane ratings: 1. Definition of gasoline octane rating: It represents the octane number of gasoline. For example, 95-octane gasoline consists of approximately 95% isooctane and about 5% n-heptane. 2. Anti-knock properties of gasoline: Since isooctane has good anti-knock properties while n-heptane performs poorly in this aspect, a higher octane rating indicates better anti-knock performance of the gasoline.
17
3
Share

Can BMW X5 be fitted with regular tires?

It can be replaced with regular tires of corresponding size. The front and rear tire specifications for BMW X5 are 275/45R20 and 305/40R20, and the tire model is Pirelli P ZERO. In 275/45R20, 275 represents that the tire width is 275mm, 45 indicates that the aspect ratio of the tire section is 45%, meaning the section height is 45% of the width, and R20 represents that the rim diameter is 20 inches. Here is some relevant information: The BMW X5 has ample space, excellent handling performance, the body dynamics faithfully reproduce the steering wheel operation, stable high-speed driving, the suspension is compliant on various road surfaces, sufficient power, and the engine response is sharp and linear.
6
2
Share

The Difference Between Kawasaki H2SX and H2

The differences between Kawasaki H2SX and H2 are as follows: 1. Usage difference: The H2 is a road-legal sports bike that can be licensed for street riding, while the H2SX is a touring bike more suitable for long-distance journeys. 2. Engine difference: The Kawasaki H2 is equipped with a 998cc four-cylinder engine, delivering 200 horsepower and a maximum torque of 137 Nm. The H2SX features a water-cooled inline four-cylinder engine with a maximum power output of 147 kW and maximum torque of 137 Nm, additionally incorporating supercharger technology. Compared to the H2's engine, the H2SX's engine is better suited for prolonged stable operation, and its cooling system outperforms that of the H2. 3. Feature difference: To enhance safety during long-distance rides, the H2SX comes equipped with numerous electronic control systems such as traction control, ABS anti-lock braking system, and drive wheel control system, which are absent in the H2.
20
1
Share

What to Do If Diesel is Accidentally Added to Gasoline?

Here is the relevant introduction about mistakenly adding the wrong fuel: 1. Adding diesel to a gasoline car: The vehicle may experience shaking, black smoke from the exhaust, or even fail to start. If driven forcibly, the entire fuel system could be damaged, and the engine might even be ruined. Solution: Contact a specialized repair shop as soon as possible to clean the fuel tank and fuel system, followed by a comprehensive engine inspection. Avoid starting the engine to prevent further damage. 2. Adding gasoline to a diesel car: Initially, the vehicle may start, but after driving for a while, noticeable unstable idling, abnormal engine noises, and white smoke from the exhaust will appear. Compared to adding diesel to a gasoline car, if detected early and the fuel is replaced immediately, the engine can still function. Solution: Find the nearest repair shop to replace the gasoline immediately. It is also advisable to clean the fuel tank and fuel system and replace the fuel filter.
5
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.