dave2001auto

Hi,
I just got a used 2009 e320 bluetec with U41 fuel water separator and lubication package with about 50k miles. There no record of a fuel filter change. It was a CPO car, before I bought it.

What is the filter part number for bluetecs with the U41 water separator?
What is the SA code if it has the heater in the fuel filter?

I had car MBZ dealer pre-purchased inspected and he did not think the fuel filter or tranny were serviced. How long can the fuel filter go without servicing -- will the water light go on?

dave
BTW shell ATF 134 for $55 per case.
Best to supply the lub. people the diesel engine oil cause they might use a syn oil with high ZnPhos.

Plutoe

To review the SA code you need access to the datacard, to access the datacard you need the VIN?? However if you can wait till Monday when i am at a location with EPC/datacard access!! If not------

dave2001auto

I have the datacard print out with mbz translation, but don't know what the SA code is or what mbz calls the heated diesel filter. What does mbz call it?

Plutoe

Don't take this personally, but you are confusing me---First within the W211, I could not find a designation for an E320Bluetec-----there is an E300Bluetec and an E320CDI.

If you have a 642 engine(Bluetec) with a central located fuel filter with CODEU41(Fuel/water seperator and lube package)----then is that the code you are looking for. The heating unit is intergral to the condensation sensor

If you see an R54---that is the heating element for the fuel preheating system,less the condensation sensor.

FYI you can't have both you either either have U41 or R54

apl175

For the E320 Bluetec sold in the USA - they all have code U41, and will need the fuel filter that has the hole for the sensor. The Water in Fuel message indicates that the filter has collected enough water to be drained - it does not necessarily indicate it needs to be replaced.

I'm sorry I don't have the part # - but I was able to find them easily at Advance Auto Parts.

Simple DIY change, just leave the key in the run position for a few seconds after so that the electric fuel pump has a chance to fill up the filter. You might also need the CLIQ type clamps - as they are not intended (but can be) reused. Some have replaced with regular screw clamps without ill effect, although MB does not recommend this.

dave2001auto

Thanks,
Doesn't have the R54. Has U41, the water sensor is 0001539513. The whole of the water sensor is in the center of the filter, so the filter part number is 6420920101 ?

I appears that the filter is 8000 miles over due. What sign will it have to change the filter?

My toyota mech. for my Sienna says change the spark plug when need not at the 90k mile schedule. It's 150k miles now and still the original factory spark plug change.


2009 e320 bluetec is the V6 with DPF and no urea system. The series ran from 2007 to 2009. None for 2010 and then 2011 e350 bluetec with urea system. BTW: No under dash cabin filter.

Plutoe

I would not follow all the supposition----read the owners manual and follow the manufactures suggestion.

Regarding "spark plugs" diesels do not have them, diesels have glow plugs and once again follow the manual for suggested change

PelicanParts.com

Replace the filter, this is a Mercedes Benz not a Toyota.

Read the owners manual and follow the manufactures schedule.

whunter@pelicanparts.com

.

dave2001auto

Thanks. The instruction manual is very length without supply specifics on the maintenance schedule and mostly on the warranty of all the other models but mine. The car is used, so maybe the wrong manual was giving.

Where do you get you car serviced and how do you like their service?

PelicanParts.com

Most MB service departments will "upon in person request" print off the maintenance schedule, and simple reasonable service procedures.
MBUSA offers many free documents you may find helpful or interesting.

https://www.startekinfo.com/StarTek/...tedDocId=50857

https://www.startekinfo.com/StarTek/...tedDocId=10458

https://www.startekinfo.com/StarTek/...stedDocId=9511

32+ years master mechanic in Detroit Michigan area, nobody but me touches my personal vehicles.

whunter@pelicanparts.com

.

dave2001auto

Thanks Master Mech. whunter
It funny that the very large local MBZ part department said the use Mobil 1 full synthetic and not Mobil 1 ESP or Euro type full synthetic for the bluetec. US Mobil 1 is about 1000% over spec for Phosphorus 1.0% versus 0.05 to 0.09%. What do you use?

I was wondering if Chevron DELO 400 LE CJ-4 is okay with slightly higher (20%) in Sulfur, Phosphor, sulfated ash that 229.51 spec. to the DPF and other Emissions components. The dino ISOSYN HD DELO are known to go over 50,000 in big rigs. Is the OilServiceInterval of 10k miles in the bluetec due to lubrication failure or too dirty for the DPF?
dave

drgeeforce

I bought a CPO 2010 GL350 BTC it was a lease return and let me tell you it was the worst decision I've ever made. The previous owner probably bought the worst diesel fuel known to man. I have replaced the fuel filters 3 times in 2 years having driven only 19K mi. I buy either Union 76 or Mobil diesel and keep my tank full a majority of the time. The filters have algae and water every time it gave the CEL and I have used a biocide since the first filter replacement. Now my GL is sitting at the dealer with the advisor telling me the whole fuel system needs to be replaced for $15K. Naturally I called my auto insurance, and it is a nightmare. Researching the internet, I find most Euro diesels can't handle the low sulfur here in the states and the HPFP is the main component to fail. Aside from the algae, they are blaming me for using the biocide to kill the algae, as causing the secondary fuel pump to fail thereby causing the HPFP to fail. Mercedes USA has not returned my calls, and my insurance is waiting for their decision. Be very careful about buying a used diesel as you do not know the car's history if it was abused and poorly fed cheap diesel.

dave2001auto

Sorry about your car and problems with MBZ.

Where (what state) was the CPO mercedes regristered?
I heard of people empting the tank and power washing out the tank. Since your is a CPO, the algae issue may be covered. What brand and type of biocide did you use?

I've heard that USA was behind EU due to the prior high sulfur in the diesel. Thus mercedes diesel delay for the DPF and urea injected bluetec in the USA.

drgeeforce

My GL350 BTC was bought in CA and I have used only CRC Bio-Con and SeaFoam additives both are approved for diesel use. The advisor inferred that I was using biodiesel and that caused the secondary pump to fail. Somehow MBUSA finds these bubbleheads and trains them to repeat the same uneducated phrases to avoid claims. Firstly, biodiesel provides more lubricity to the pumps than sulfur diesel and lubricity means less wear. He is claiming biodiesel caused the pump to wear out and fail spewing "metallic particles" into my fuel system. I'm not a nanochemist but fuel pump vanes are made of HDPE and "metallic particles" from a seized pump is nonsense. Furthermore he added the false analogy of the coffee filter not filtering out these particles in justifying replacing the HPFP and injectors. Once he said that, I refused the whole job and asked him to return my car minus the tank drain, pump and filter replacement, which was already done. I'm sure this guy is ripping people off in up-selling needless repairs. Nevertheless I need to find a trustworthy indie repair shop in Los Angeles.

drgeeforce

Dave, I highly recommend you use spec fluids as MBUSA will deny a repair claim if non-spec parts or fluids can be blamed, voiding the warranty. The only thing they cannot blame is using an independent repair shop, as Magnusson-Moss protects us all.

dave2001auto

Yes, I do use only MBZ "approved" fluids and OEM or MBZ parts. 2009 e320 bluetec is out of warranty except possible the smog and some power train. Many may claimed exceeds MBZ spec. but those claims may be self serving and may not meet MBZ specifications, .e.g., 229.51 for 5W30 is not only very low ASAP but also hight shear and a very thick 30 ASE. The 5W40 spec is very thin 40 weight. That's why I didn't go with "exceeds MBZ" and only with "MBZ approved". Also some on the MBZ list have changed their formulation and may no longer met the spec. Read the label to see if it is still MBZ approved for that specification/model. I've had 3 diesels without any algae problems using regular diesel and now ULSD. Ages were 5, 25 and 30 years old.

Check the boards for info on biodiesel and issues that it create. Have the documentation before you speak to the MB-USA repressentative. Be nice, they may do it as goodwill.

drgeeforce

Dave, Volkswagen of America has addressed the issue of HPFP failures and are working with VWTDI owners. MBUSA defer repair policies to the dealerships and only make "recommendations." Mercedes (Keyes Mercedes in my area) has to this day remained silent as far as assisting BTC owners with HPFP failures. The dealers in my area have a stance of: "Not our problem, it's the owner's problem."

dave2001auto

From page 399 of the 2009 e class owner's manual:
"B5 biodiesel Mercedes-Benz USA, LLC approves the use of
B5 biodiesel (standard diesel with a maximum of up to 5% biodiesel content) in all Common Rail Injection (CDI) and BlueTEC diesel engines. Diesel fuels containing a higher percentage of biodiesel content will cause
damage to your engine and are not approved. Biodiesel can be refined from a variety of raw materials which may result in widely varying properties. Only use approved biodiesel. Approved biodiesel meets the ASTM D6751
standard and has the necessary oxidation stability (minimum 6 hours, proved with EN14112 method) to prevent deposits and/or corrosion. The use of non-approved biodiesel may damage the fuel system. Please ask your service station for further information. If the B5 biodiesel blend is not sufficiently labeled to clearly indicate that it meets the above standards, please do not use it. The Mercedes-Benz Limited Warranty does not cover damage caused by the use of fuels..."

My diesel is ULSD and has a slight odor like gasoline. I didn't notice that smell until the ULSD change over.

drgeeforce

Lubricity Improvers

Fuel lubricity is important in all diesel fuel injection systems, many of the internal components are lubricated by fuel.

Bosch VE and VP44 pumps, used from 1989-1993 and from 1998.5 to present, respectively, are lubricated by fuel only. The Bosch P7100 pump, used from 1994 to the first half of 1998, uses engine oil to lubricate some of the pump, but fuel lubricity is still significant. When the US EPA required lowering sulfur content of diesel fuels, there was widespread concern about lubricity. It turned out that if the fuel was not excessively desulfurized the lubricity was usually sufficient, or could be made so with an additive. Hence, lubricity should be monitored closely by refiners.

The aromatic content of the fuel is also reduced by hydrotreating (the process used to remove sulfur). In a few engines, fuel system seals swelled and worked better with highly aromatic fuels, but they tended to shrink and leak when the engines were switched to low sulfur, low aromatic fuels.

http://www.holt.us/tdi/index.html