Fuel specifications, Refueling – BMW M3 Convertible 2005 User Manual

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Closing the gas cap

Place the cap in position and turn it
until a clearly audible click is heard.

Close the gas cap carefully after
refueling until a click is heard.

While closing, be sure not to squeeze
the strap which is fastened to the cap.
A loose or missing cap will activate the
CHECK GAS CAP* lamp.

Warning lamp* lights up. The
gas cap is not properly closed
or is missing. Check if the gas

cap is properly closed.

Fuel tank capacity

> Approx. 16.6 gal./63 liters, of which

> approx. 2.1 gal./8 liters are reserve

capacity.

Do not drive to the last drop of
fuel. This can prevent the engine

from operating properly and result in
damage.

Fuel specifications

The engine uses lead-free gasoline
only.

Required fuel

Premium Unleaded Gasoline,
Minimum Octane Rating: AKI 91.

Minimum Octane Rating corresponds to
the Anti Knock Index AKI and is deter-
mined according to the so-called
(R+M)/2 method.

Do not use leaded gasoline, as
otherwise the lambda probe and

catalytic converter will be permanently
damaged.

Use high-quality brands

Field experience has indicated signifi-
cant differences in fuel quality: volatility,
composition, additives, etc., among
gasolines offered for sale in the United
States and Canada. Fuels containing up
to and including 10 % ethanol or other
oxygenates with up to 2.8 % oxygen by
weight, that is, 15 % MTBE or 3 % meth-
anol plus an equivalent amount of co-
solvent, will not void the applicable
warranties with respect to defects in
materials or workmanship.

The use of poor-quality fuels may
result in drivability, starting and

stalling problems especially under cer-
tain environmental conditions such as
high ambient temperature and high alti-
tude.
Should you encounter drivability prob-
lems which you suspect could be
related to the fuel you are using, we
recommend that you respond by
switching to a recognized high-quality
brand.
Failure to comply with these recom-
mendations may also result in unsched-
uled maintenance.

Refueling

Overview

Controls

Maintenance

Repairs

Data

Index