Reasons for Chassis Flex Disc Failure in Mercedes

Posted on | 6 Sep 2018 By Anita Gaal

Mercedes are beautiful luxury cars. This is something that can be said whether it is a newer or older model. They are reliable cars that will last a very long time and will keep their value as time goes on. Of course, the ability to keep your Mercedes reliable requires staying up to date with maintenance and repairs. As your Mercedes gets older, listen for new and uncommon noises and vibrations, as these will be your car trying to tell you if there is something wrong. A common problem that can arise in older Mercedes that have automatic transmissions is the failure of the chassis flex disc.

What is a Chassis Flex Disc?

The chassis flex discs are small parts that will play a very large role in making sure your Mercedes continues to run properly. The flex discs help ensure that the overall performance of your car stays up to the quality it should be. The flex discs join the driveshaft, transmission, and differential together so that power can be sent to the wheels. You can think of the flex discs being in place so they can tell the car to go.

The chassis flex discs are made of rubber so due to the outside elements, they are eventually going to have some wear and tear. They take a good amount of the pressure that the suspension produces when you are driving your Mercedes on uneven roads. Any type of bump or hole can wear down the flex discs. They will also be worn down in extreme heat and also extreme cold. Going from one extreme to the other quickly will have a negative effect on the chassis flex discs as well.

Reasons for Chassis Flex Disc Failure

If your Mercedes is experiencing chassis flex disc failure, this can be very dangerous for both the driver and the passenger. It is important to know what signs to look for so you will be able to take it into a Euro Automotive specialist if and when you notice them.

Car Vibrations

As your Mercedes starts to get older and the parts begin to slowly deteriorate, vibrations are unfortunately going to happen one way or another. If one of the pieces that the flex discs are connected to is wearing down, then the car will begin to vibrate unnaturally. When the transmission and/or the driveshaft become damaged, this will in turn damage the flex discs. This is why the vibrations will occur because the flex discs become cracked or damaged. The vibrations will mainly occur when the car is accelerating and decelerating. This is when the vibrations will be the loudest and most noticable.

Trouble Shifting Gears

A Mercedes with an automatic transmission can experience trouble when shifting into reverse or into drive. It may feel like you are fighting with your Mercedes to get it to shift into one of these gears. The chassis flex discs allow for smooth transitions and if they are damaged, the transitions will be rough and unnatural. Due to the any damage the flex discs may have, the parts connected to it will be affected as well. A damaged flex disc can lead to trouble with the driveshaft, which will then lead to the difficulty in shifting.

Time to Take Your Mercedes In

Located in Dallas, TX, Euro Automotive has been in operation for 18 years and is the best shop to take your Mercedes to if you suspect there may be chassis flex disc failure. All of our technicians have the certifications necessary to work on your Mercedes and provide it with the best care.

When you bring in your Mercedes, we will run a complete diagnostic to pinpoint where the exact problem is located. Once we discover that a flex disc needs to be repaired, our service technicians will order an original equipment manufactured part to ensure that the new piece lasts for a very long time. The flex disc that is causing the problem will be replaced and the technicians will also take the time to check the other pieces that connect to it to make sure that there are no additional problems. If you are in the surrounding areas, including Garland, Arlington, and Fort Worth, Euro Automotive can be easily accessed and will always take proper care of your Mercedes.

* Mercedes-Benz C63 AMG image credit goes to: kurmyshov.

* Mercedes Logo image credit goes to: franz12.

Does EHA Valve Failure Cause Mercedes Engine Problems?

Posted on | 24 May 2018 By Anita Gaal

Mercedes vehicles have been some of the most durable and reliable cars on the market for decades. In recent years, the engineering behind this fantastic automobile has advanced significantly, where most of the car’s functions are automated and computer-controlled. This includes functions such as fuel distribution. While modern cars are designed to work more efficiently, there are still some issues that arise due to mechanical problems technology can’t prevent.

When it comes to fuel distribution, there are many parts and systems involved in the process to make the car run optimally and effectively. In Mercedes vehicles such as the 300-E, it is common to experience problems with the EHA valve, which serves a critical function in the fuel distribution process. If you drive a Mercedes or have concerns about recent symptoms your car began expressing, you might find this article helpful. We’ll go over what an EHA valve does, common symptoms of failure, and what you can do to prevent EHA valve failure.

What Is an EHA Valve and What Does it Do?

There are many different components within the fuel distribution system of your Mercedes that are all important for the overall functioning of the engine, and each of their roles is critical. An electro-hydraulic actuator (EHA) valve is a part of the fuel distribution system that helps to regulate the pressurized fuel distributor itself. Dictated by the car’s computer, fuel flows through the EHA valve where the fluid is then sifted through smaller holes in the valve, and the fuel distribution ratio can be optimized and corrected for adjustments in driving conditions. When the EHA valve begins to malfunction, it can cause a significant change in your Mercedes’ performance, often leading to engine problems.

Common Problems

Testing for problems with the EHA valve requires specialized knowledge and equipment for working with Mercedes vehicles. Therefore, it is important to find a reputable and trustworthy Mercedes specialist who can properly assess and diagnose EHA valve problems. There are several things that can go wrong with the EHA valve, and depending on what part is failing the symptoms will differ. The EHA valve itself can malfunction if the part becomes worn or damaged. However, the most typical problem associated with EHA valves is a maladjustment problem, where it isn’t set to properly optimize the car’s performance. Another common issue is with the electrical connector that can become corroded and worn over time due to exposure to volatile engine temperatures. It can crack or break, causing the EHA valve to malfunction.

Symptoms

As mentioned before, there are several opportunities for issues with a Mercedes’ EHA valve; however, it is most important to pay attention to the symptoms your car exhibits so that your automotive specialist will know what symptoms to re-create or look out for in the diagnostic process. A failing EHA valve can cause concerning and dangerous side effects that make your Mercedes difficult, if not impossible, to drive—including serious engine problems. These are the most common symptoms of EHA valve failure:

• Rough running: hesitation or jerking upon accelerating; difficulty in the ignition and combustion processes; slow to start
• Fuel Leaks: visible fuel leak beneath car, or remnants of evaporated fuel
• Fuel Efficiency: significantly lowered fuel economy, either due to a fuel leak or EHA valve inefficiency

As you can see, these symptoms are concerning to any driver, let alone the driver of a Mercedes-Benz who comes to expect excellent quality, reliability, and safety. It is critical to have your EHA valve inspected as soon as possible to ensure your safety and restore your car back to its optimal performance level.

How We Can Help You

The Mercedes experts here at Euro Automotive have extensive experience working with German-made cars. Serving the communities of Dallas, Garland, Arlington, and Fort Worth, TX, our breadth of knowledge and passion is expanded each day with every new client that walks through our door. If you’re experiencing any of the symptoms associated with EHA failure in your Mercedes, it’s critical to have it checked out by a Mercedes professional right away. The most important thing is obtaining an accurate diagnosis, and we pride ourselves on our ability to provide that to our clients. We can help you maintain ongoing, routine care procedures, or perform expert repair work. Please call us today to schedule an inspection, or learn more about our shop.

* Mercedes SL image credit goes to: supergenijalac.