Ask your question here. Provide a clear and comprehensive description of the issue and your question. The more detail you provide for your issue and question, the easier it will be for other Mercedes-Benz E BlueTEC owners to properly answer your question. This manual comes under the category Cars and has been rated by 2 people with an average of a 8. This manual is available in the following languages: English.
Is your question not listed? Ask a question. Related product manuals. How do I convert miles into kilometres? They might say MB In my opinion, MB If the oil is a group IV or group V, you will NOT see; distillates, petroleum, hydrotreated or heavy paraffinic or hydrogenated base oil.
It may also say it has some other long chemical names. Occasionally it might say it has a tiny percentage of petroleum. Group V ester synthetics are built with chemical building blocks with very little petroleum. Chemist use small amounts of petroleum for some of the chemical molecules. There are very few ester synthetic diesel oils made in America. There are lots of other important qualities your oil needs. This is the film strength of the oil. The DPF regeneration causes lots of fuel dilution.
The higher the HTHS, the better the oil resist fuel dilution. When the crankcase oil is mixed with diesel fuel the oil vaporizes even easier. Viscosity is one of the most misunderstood aspects. I explain all of these things if people want more help. As time goes by Mercedes publishes hundreds of Service Bulletins. If you look at each bulletin or article as a chapter in a book.
First you need all the chapters, then they need to be in the correct order. They have their reasons. Fault code is a perfect example. Then they said the EGR cooler was clogged. Mercedes implies the exhaust temperature is to high, but no comment about what causes the oil to vaporize in the first place. Mechanics were told to only replace the parts. Mercedes mentions in another bulletin the NOx sensors fail for several reasons, one of which is high exhaust temperatures. They said those parts also need to be replaced, with no recommendation for solving the cause of the hot oil vapor.
In , enough was enough. Mercedes issued a Service Campaign with updated software to solve fault code You might have noticed the AEM recall stops at model year Basically the software update is a high tech piece of tape over the CEL. Fault code is a very important fault code. The problem must have fixed itself. The RV Salesman ….. In order to understand the DPF regeneration, first you need to know when it comes on.
As of , a DPF monitor is built in at the factory. In fact, Mercedes has gone out of its way to obscure the information. Ask your dealer to explain the DPF monitor?
Ask them what things interrupt the regeneration? Ask them for any written instructions that explain the DPF monitor? I explain everything that interrupts the regeneration and what happens. It also includes all the ways you can extend the distance between regenerations and how to reduce the exhaust temperatures. Sorry, this DPF monitor is outdated. Understanding the regeneration has also gotten more complicated.
This is a very common fault code that may also have 2 additional digits. Mercedes Service Bulletin LI Dealers often just replace the DPF and stop there. The engine is often burning oil, so that problem needs to stop. This is part of the EGR cooler.
P is often misdiagnosed, because this is not a simple system. If you can do repairs yourself, I can show you how to save a lot of money on this fault code. If you have a high mileage engine, this fault code is a bad sign.
You can expect a lot more problems is different areas. This fault code is often one of the first fault codes these owners will see. They can expect to see more fault codes. Mercedes will ….. They called their ….. Timing Chain: Mercedes admits the Timing Chain stretches a lot faster than it should. See Service Bulletins LI Mercedes has redesigned the chain and sprockets for the third time.
The original Timing Chain and sprockets would last indefinitely with higher quality oil, better oil filtration and 5, mile changes. Timing Chains can start clattering on cold starts as soon as 40, miles. Short trips with frequent interruptions in the DPF regeneration causes high fuel dilution. Some Timing Chains can make it past , miles with better oil changes and less fuel dilution. Once again, this is one of the anomalies specific to each individual BlueTEC diesel and its unique operating conditions.
Using the factory recommended oil and the factory recommended service intervals, by 80, miles the average BlueTEC Timing Chain is very close to its wear limit.
As the Timing Chain stretches it changes the Camshaft Timing. This causes a significant increase in NOx emissions and a noticeable drop in performance. When new, the Camshaft timing is at TDC or zero degrees at the crankshaft.
As the chain stretches, the Crankshaft timing advances to its wear limit of 11 degrees. Mercedes offers an official method to measure the amount of chain stretch for both the OM see AR Remove the oil cap and look straight down at the piston in the Chain Tensioner. When new, the Chain Tensioner piston extends about 5mm from the body of the Chain Tensioner. When the piston extends about 13mm, the Timing Chain is at its wear limit. There is no way for the driver to know if the DPF is regenerating.
This video will really help you understand how the basic problems begin. This is a big part of what causing so much ….. Exhaust fumes entering the cabin: People smell exhaust fumes and ask their dealer to take a look.
This is another known problem where Mercedes has published many Service Bulletins about exhaust leaks. The extreme heat …..
Why are the latest NOx sensors failing? Extreme exhaust heat is the cause. Exhaust heat comes from the DPF regeneration. Controlling the exhaust heat is critical.
NOx sensor symptoms may include no start no crank. Note: You may think you have a no start caused by the SCR countdown feature. But the engine may not start because of blown fuses from a melted wire near an exhaust leak. DPF exhaust leaks will cause frequent regenerations.
Check for cracks. The fuse for the NOx AdBlue system can blow. Fault codes , UD and UE may be present. A complete and careful inspection of wiring for the exhaust sensors along the exhaust system is required. Service bulletin LI The exhaust cracks and melts the NOx wiring and causes a short circuit to ground. Guess what causes all the oil in the Intercooler and EGR cooler? Some owners notice a loud grinding noise. See Service Bulletin LI Class Member Payment. Once an AEM for your vehicle is available, contact your preferred authorized dealership to schedule an appointment to have the AEM installed.
Authorized Mercedes-Benz dealerships can be found at www. If you are a Freightliner Sprinter owner, you can check www. You can check whether an AEM is available for your vehicle here.
As AEMs for other vehicles become available, owners and lessees of those vehicles will receive another mailed notice. You may continue to monitor this website, register for updates , or call to find out whether an AEM is available for your vehicle. Registration on this website alone does not constitute a Valid Claim for cash benefits. If you wish to claim a Class Member Payment, you must submit a Valid Claim by the applicable due date, even if you have registered on this website for updates.
Bring your vehicle to your appointment for installation of the AEM. You must complete the AEM installation before you submit a claim.
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