2010 Mercedes ML-Class Owner's Manual - Page 363

Fuels, coolants, lubricants, etc. ! Do not fill the tank with gasoline. Do not blend diesel fuel with gasoline or kerosene. The fuel system and engine will otherwise be damaged, which is not covered by the Mercedes-Benz Limited Warranty. For further information on diesel fuel pump labeling, contact an authorized MercedesBenz Center or visit www.mbusa.com (USA only). Biodiesel (FAME = Fatty Acid Methyl Ester) containing fuels Mercedes-Benz USA approves the use of B5 (standard ULSD which may contain a maximum of 5% biodiesel) in all Common-rail injection (CDI) and BlueTEC diesel engines. Diesel fuels containing a higher percentage of biodiesel, e.g. B20, as well as straight biodiesel may cause severe damage to your engine/fuel system and are not approved. Please ask your service station personnel for further information. If the B5 biodiesel blend is not sufficiently labeled to clearly indicate that it meets the ULSD standard, please do not use it. The Mercedes-Benz Limited Warranty does not cover damages caused by the use of fuels not meeting Mercedes-Benz approved fuel standards. RKnocking/pinging RMisfire RPower 361 loss ! Damage or malfunction resulting from poor fuel quality or from blending additional fuel additives other than those tested and approved by us for use on Mercedes-Benz vehicles are not covered by the MercedesBenz Limited Warranty or by any pre-owned or Extended Limited Warranties. AdBlue® AdBlue® is a non-flammable, non-toxic, colorless and odorless, water-soluble liquid. Gasoline additives (gasoline engine) A major concern among engine manufacturers is carbon build-up caused by gasoline. Mercedes-Benz recommends only the use of quality gasoline containing additives that prevent the build-up of carbon deposits. After an extended period of using fuels without such additives carbon deposits can build up, especially on the intake valves and in the combustion area, leading to engine performance problems such as: RWarm-up RUnstable ! Only use AdBlue® complying with ISO 22241. Do not blend with additives. ! Rinse surfaces that have come into contact with AdBlue®, or remove AdBlue® with a moist cloth and cold water immediately. If AdBlue® has crystallized already, use cold water and a sponge. AdBlue® residues will crystallize and soil the affected surfaces. High ambient temperatures If AdBlue® in the reservoir heats up to above 122‡ (50†) for a long period of time, for example due to direct sunlight, ammonia gas hesitation idle Z Technical data In areas where carbon deposits may be encountered due to lack of availability of gasoline which contains these additives, the use of Mercedes-Benz approved additives is recommended. Contact an authorized Mercedes-Benz Center or visit www.mbusa.com (USA only) for a listing of approved products. Follow directions on the product label. Do not blend other fuel additives with fuel. This only results in unnecessary cost and may be harmful to the engine operation.