2011 Mercedes R-Class Owner's Manual - Page 356

354 Service products and capacities ! Only use AdBlue® that complies with ISO 22241. Do not add any special additives to AdBlue® and do not thin AdBlue® with water. This could destroy the BlueTEC exhaust gas aftertreatment. ! Rinse surfaces that have come into contact with AdBlue® immediately with water or remove AdBlue® using a damp cloth and cold water. If the AdBlue® has already crystallized, use a sponge and cold water to clean it. AdBlue® residues crystallize after time and contaminate the affected surfaces. High outside temperatures If AdBlue® is heated to above 122 ‡ (50 †) for an extended period of time, e.g. due to direct sunlight on the AdBlue® tank, AdBlue® may start to decompose. Ammonia vapors develop as a result. water. This may destroy the BlueTEC exhaust gas aftertreatment system. Damage resulting from the use of additives or water is not covered by the MercedesBenz Limited Warranty. Purity Assuring the purity of AdBlue® is particularly important with respect to avoiding malfunctions in the exhaust gas aftertreatment system. If AdBlue® is pumped out of the AdBlue® tank, e.g. during repair work, it must not be returned to the tank. The purity of the fluid can no longer be guaranteed. ! Impurities in AdBlue®, e.g. due to other service products, cleaning agents or dust, lead to increased emission values, system malfunctions, catalytic converter damage or damage to the BlueTEC system. Engine oil Points to remember The engine oils are matched to the performance of our engines and service intervals. For this reason, only use engine oils and oil filters that are approved for vehicles with a service system. Contact an authorized Mercedes-Benz Center or visit http://www.mbusa.com (USA only) for a list of approved engine oils and oil filters. Technical data G Warning! When opening the filler cap of the AdBlue® tank ammonia gas vapors may escape. Refill AdBlue® in a well ventilated area only. Ammonia gas vapors have a pungent odor and are particularly irritating for your skin, mucous membranes, and eyes. Inhaling ammonia gas vapors will cause burning eyes, nose, and throat, as well as coughing and watering eyes. Low outside temperatures AdBlue® freezes at a temperature of approximately 12 ‡ (-11 †). The vehicle is equipped with an AdBlue® preheating system at the factory. Winter operation can thus be guaranteed even at temperatures below 12 ‡ (-11 †). Additives ! Use only AdBlue® complying with ISO 22241. Do not use any additives with AdBlue® and do not thin AdBlue® with ! Never use engine oil or an oil filter of a specification other than is necessary to fulfill the prescribed service intervals. Do not change the engine oil or oil filter in order to achieve longer replacement intervals than those prescribed. Otherwise, you may cause damage to the engine or exhaust gas aftertreatment; this is not covered by the Mercedes-Benz Limited Warranty. Follow the instructions in the service interval display regarding the oil change.