Fuel requirements
Use only premium-grade unleaded gasoline. The octane number should be at least 91. Details can be found on the gas pump. The octane number is the average value of the Research Octane Number (RON) and the Motor Octane Number (MON): (RON + MON) / 2, also known as knock resistance. Reformulated Gasoline (RFG) and/or unleaded gasoline with additives can be used if the concentration of the additives in the fuel does not exceed 10%, e.g.:
- Ethanol
- TAME
- ETBE
- IPA
- TBA
For MTBE, the concentration should not exceed 15%.
The concentration of methanol in gasoline including other additives must not exceed 3%. Using mixtures of methanol and ethanol is not permitted. Gasohol, a mixture of 10% ethanol and 90% unleaded gasoline, can be used. All of these mix fuels must fulfill the fuel requirements, e.g.:
- knock resistance
- boiling point
- vapor pressure
See also:
Trailer towing
When towing a trailer and driving downhill, shift to the lower gear if
the automatic transmission constantly shifts between two gears.
Engaging a lower gear and reducing the speed reduces the ...
Storing settings
With the memory function, you can store up
to three different settings, e.g. for three
different people.
The following settings are stored as a single memory preset:
• seat, backrest, head res ...
Correct driver's seat position
Observe the safety guidelines on seat
adjustment
•► Check whether you have adjusted seat =
properly.
Electrical seat adjustment (Y page 100)
When adjusting the seat, make sure:
...