BMW 1 Series 2011 Service And Warranty Information page 9

The 335d's engine oil is different than for
BMW gasoline engines. Use only "low-ash"
fully synthetic oils meeting BMW's long-life
rating LL-04. One such oil is Castrol SLX
Professional OE SAE 5W-30
(Castrol #06070). This oil is also available at
BMW Centers under BMW part number
07 51 0 037 195. There is a reference label
located in the engine compartment with this
part number.
The 335d is equipped with a traditional
dipstick located in the engine compartment
(item #2; note that the engine coolant tank
item #1 is on the other side of the engine
compartment than shown).
To check the engine oil level:
1. Park the vehicle on a level surface with the
engine at operating temperature (i.e., after
driving continuously for at least 7 miles).
2. Turn the engine off.
3. Wait at least approximately 5 minutes.
4. Pull the dipstick out and wipe dry with a
lint-free cloth, paper towel or similar.
5. Carefully push the dipstick fully into the tube,
then pull out again.
6. The oil level must be between the two marks.
The quantity of oil between the two marks is
approximately 1 quart.
The 335d is equipped with Selective Catalyst
Reduction (SCR) technology. Diesel Exhaust
Fluid (DEF) is injected into the exhaust system
to help reduce the emissions of nitrogen
oxides (NOx). DEF is designed to last until your
next oil change before it needs to be refilled.
However, depending on your vehicle needs,
you can run out of DEF before you reach the
interval. The instrument cluster warning lamp
will warn you before DEF is depleted, starting
at approximately 1,000 miles.
Refill DEF indicator lamp (yellow)
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