Driving Precautions; General Driving Notes; Diesel Particle Filter - BMW 318i Owner's Handbook Manual

Driving precautions

Running in
Moving parts require some time before they can
interact smoothly with one another. Please
comply with the following instructions, which
are intended to ensure that your car achieves its
optimum operating life and economy.
Engine and final drive
Observe the national speed limits in the country
in which you are travelling.
Up to 2000 km, approx. 1250 miles
Drive at varying road and engine speeds, but do
not exceed the following values:
> Petrol engine
4500 rpm, or 160 km/h or 100 mph
> Diesel engine
3500 rpm, or 150 km/h or 90 mph
Avoid full throttle and do not use the automatic
gearbox kick-down.
From 2000 km, approx. 1250 miles,
onwards
Engine and road speeds can be gradually
increased.
Tyres
New tyres do not achieve their full road
grip immediately, for production reasons. You
should therefore drive in a restrained manner
for the first 300 km, approx. 200 miles.
Brakes
Brake pads and discs do not achieve a favoura-
ble wear and contact pattern until the car has
covered about 500 km, approx. 300 miles. Drive
with caution during this running-in period.
Clutch
The clutch needs to be run in for about 500 km,
approx. 300 miles, before it will operate with
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maximum efficiency. Operate the clutch gently
while running it in.
After fitting new parts
The same running-in procedures should be
observed if any of the components mentioned
above have to be renewed in the course of the
vehicle's operating life.

General driving notes

Closing the luggage compartment lid/
tailgate
Drive only with the luggage compartment
lid/tailgate and rear window closed, other-
wise exhaust gases could enter the passenger
compartment.<
If it is nevertheless necessary to travel with the
luggage compartment lid/tailgate or rear win-
dow open, observe the following precautions:
1. Close all the windows and the glass roof.
2. Turn the air flow rate of the air conditioner or
automatic air-conditioning system well up,
see page 85 or 88.
Hot exhaust system
High temperatures in the exhaust system
occur with all vehicles. Never remove the
heat shields protecting the exhaust system, nor
apply underseal to them. Make sure that when
the car is driven or parked and when the engine
is idling, no easily flammable material such as
hay, leaves, grass, etc. comes into contact with
the hot exhaust pipe. It could ignite and cause a
fire, with the risk of severe injuries or damage.
Do not touch hot exhaust tail pipes; otherwise
there is a risk of burns.<

Diesel particle filter*

The diesel particle filter collects soot particles
and burns them periodically at high tempera-
tures. This cleaning procedure takes several