Driving and parking, Automatic transmission – Mercedes-Benz CLA-Class 2015 User Manual

Page 150

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Problem

Possible causes/consequences and M

M Solutions

The engine is not run-

ning smoothly and is

misfiring.

There is a malfunction in the engine electronics or in a mechanical

component of the engine management system.

X

Only depress the accelerator pedal slightly.

Otherwise, non-combusted fuel may get into the catalytic con-

verter and damage it.

X

Have the cause rectified immediately at a qualified specialist

workshop.

The coolant tempera-

ture gauge shows a

value above 248 ‡

(120 †). The coolant

warning lamp may also

be on and a warning

tone may sound.

The coolant level is too low. The coolant is too hot and the engine

is no longer being cooled sufficiently.

X

Stop as soon as possible and allow the engine and the coolant to

cool down.

X

Check the coolant level (

Y

page 289). Observe the warning

notes as you do so and add coolant if necessary.

Automatic transmission

Important safety notes

G

WARNING

If the engine speed is above the idling speed

and you engage transmission position D or R,

the vehicle could pull away suddenly. There is

a risk of an accident.
When engaging transmission position D or R,

always firmly depress the brake pedal and do

not simultaneously accelerate.

G

WARNING

The automatic transmission switches to neu-

tral position N when you switch off the engine.

The vehicle may roll away. There is a risk of an

accident.
After switching off the engine, always switch

to parking position P. Prevent the parked vehi-

cle from rolling away by applying the parking

brake.

Bear in mind that the power transmission

between the engine and the transmission is

interrupted when the engine is switched off.

To prevent the vehicle from rolling away:

R

when the engine is switched off and the

vehicle is stationary shift the automatic

transmission to park position P and

R

apply the electric parking brake

DIRECT SELECT lever

Overview of transmission positions

j

Park position with parking lock

k

Reverse gear

i

Neutral

h

Drive

148

Automatic transmission

Driving

and

parking

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