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Checking and refilling levels
Things to note about RME fuel (biodiesel)
Diesel
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The performance of a vehicle using biodiesel maybe somewhat reduced.
Fuel consumption of a vehicle using biodiesel maybe slightly higher.
RME fuel can be used in winter at temperatures down to approx. -10°C.
At outside temperatures below -10° C, we recommend using winter diesel
Diesel*
Diesel fuel must correspond to DIN EN 590 (EN = “European standard”). It
must have a cetane number (CN) of at least 51. The cetane number indicates
the ignition quality of the diesel fuel.
fuel.
Caution
RME fuel can damage the fuel system in vehicles which are not suitably
adjusted.
If you decide to use biodiesel in your vehicle, please use only RME fuel
which is DIN E 14,214 compliant.
If you use biodiesel that does not meet the required standard, the fuel
Notes on filling with fuel ⇒ page 166.
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RME fuel*
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Only those vehicles fitted with special equipment (number PR
2G0 for biodiesel use) may use biodiesel corresponding to
the standard DIN EN 14214.
filter could become clogged.
Note
The biodiesel fuel must comply with the DIN EN 14.214 (FAME) Standard.
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In case of low exterior temperatures and a fuel biodiesel percentage of
higher than 50%, an increase in gas emission may occur during operation of
the independent heating.
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Biodiesel is a methylester obtained from rapeseed oil.
DIN is a German abbreviation for “Deutsches Institut für Normug e.V.”,
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The fuel filter may become clogged when fuel is changed to biodiesel. For
the German standards institute.
this reason, we recommend that, about every 300 or 400 km, following a fuel
change, also change the fuel filter. Also. note the instructions in the inspec-
tion and maintenance plan.
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EN means European Norm.
FAME is the English abbreviation “Fatty Acid Methyl Ester”
If the date sticker of the vehicle includes the number PR 2G0 optional equip-
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If the vehicle is to remain parked for more than about two weeks, we
ment) this means that that vehicle has been prepared for biodiesel use.
recommend filling the fuel tank with biodiesel and driving about 50 km in
order to avoid damage to the injection system.
Your Authorised Service Centre or automobile association will be able to
advise on where you can obtain RME biodiesel fuel.
Your Authorised Service Centre can also be consulted to know if the vehicle
has been prepared for biodiesel use.
English 
