Is your Mercedes making some weird sounds, or does it seem like the engine is faulty? If your answer is in the affirmative then we can assist you in determining the cause. Plastic guiderail failure is one problem that often surprises Mercedes owners.
While it may not sound like an important part, the plastic guiderail plays a huge role in the health of your engine’s timing chain system. But when it does fail, the consequences can be costly, and even catastrophic. Let’s take a closer look at what plastic guiderails do, why they fail, and how to fix it to help your Mercedes stay in good shape.
Plastic Guiderails: What Are They, and Why Do They Matter?
Plastic guiderails are parts of the engine timing chain assembly. The timing chain links the crankshaft and camshafts so that the engine’s valves are open or closed when they should. These guiderails help keep the timing chain in place so it doesn’t slip or touch other engine parts. When a guiderail breaks or deteriorates, it can cause problems such as a misaligned timing chain or engine damage.
Symptoms of Plastic Guiderail Failure In Your Mercedes
If you notice a rattle or tick coming from the engine most notably during the start or at idle, then you are likely facing a loose or failing timing chain due to a broken guiderail. A malfunctioning guiderail can upset the timing chain system causing the check engine light to come on. If such a warning comes up, you need to take your car for a check up as soon as possible. Also, if the timing chain is not working well because of a failed guiderail, it may cause the engine to misfire or the engine will not perform as it used to. Scattered parts of plastic guiderail may drop into the engine oil and block the oil passages further distorting the functionality of the automobile.
How To Deal With a Damaged Plastic Guiderail
Addressing problem(s) early will prevent costly repairs and will keep your Mercedes in the excellent performance and reliability that it’s famous for.
- Inspection and Diagnosis: The first thing to do with plastic guiderail failure is to have a qualified mechanic inspect it. The technicians will then visually inspect the engine for wear or damage, as well as listen for abnormal noises — like rattling or ticking — usually a sign of a timing chain system problem. In addition, advanced diagnostic tools may be used to detect timing chain alignment or guiderail wear, so you know the problem has been correctly identified.
- Replacement of Timing Chain System: If the plastic guiderails are worn or damaged, you’re advised to replace the entire timing chain system. This includes timing chain, tensioner and all guiderails. Replacing these components as a set guarantees that the whole system works well together and avoids future problems. To keep your Mercedes running optimally and reliably, high quality replacement parts specially designed for your Mercedes are used.
- Oil Change and Cleanup: If the guiderail is damaged, the plastic component of the guiderail can be chucked into the engine oil causing more damage. To remove any contaminants you need to do an oil change plus oil filter replacement. This step eliminates the possibility of the engine suffering an additional problem.
- Preventive Maintenance: Preventive maintenance is important for vehicles with high mileage, or about to reach the recommended timing chain service interval. Fixing potential weak points early on not only saves you money, but it also means your vehicle’s engine runs smoothly and efficiently.
Choose Bavarian Workshop For Reliable Mercedes Repairs
If you are having problems with plastic guiderails or suspect a problem with your Mercedes timing chain system, Bavarian Workshop is your trusted repair partner. Since 1978, we have been proud to serve Mercedes-Benz owners in West Hills, Woodland Hills, Agoura, Calabasas, and all of the San Fernando Valley.
Our experienced professionals have worked with different European cars for years and we use only the best equipment and methods to solve the most complicated of problems. Having worked on Mercedes vehicles for a long time, we know how they work and how to tackle the failure of plastic guiderails. Give your Mercedes the premium care it is due today by visiting Bavarian Workshop.