Hints, Practical hints, What to do if – Mercedes-Benz 2011 SL-Class User Manual

Page 265

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background image

Engine

Problem

Possible causes/consequences and M Solutions

= (USA only

19

)

; (Canada only

19

)

The yellow engine
malfunction indicator
lamp comes on when
the engine is running.

There may be a malfunction in

R

the fuel management system

R

the ignition system

R

the emission control system

R

systems which affect emissions

Such malfunctions may result in excessive emissions values and
may switch the engine to limp-home (emergency operation) mode.

X

Have the vehicle checked as soon as possible at an authorized
Mercedes-Benz Center.

i

Some states may by law require you to visit a workshop as

soon as the engine malfunction indicator lamp comes on. Check
local requirements.

= (USA only

19

)

; (Canada only

19

)

The yellow engine
malfunction indicator
lamp comes on when
the engine is running.

A loss of pressure has been detected in the fuel system. The fuel
cap may not be closed properly or the fuel system may be leaky.

X

Check the fuel cap (

Y

page 178).

X

If it is not closed properly: Close the fuel cap.

X

If it is closed properly: Have the fuel system checked by an

authorized Mercedes-Benz Center.

?

The red coolant
temperature
warning lamp
comes on when
the engine is
running.

There is insufficient coolant in the reservoir.
If this warning lamp comes on frequently, there is a leak in the
cooling system.
If the coolant level is correct, the electric radiator fan may be
broken.

X

Immediately add coolant to prevent engine from overheating
(

Y

page 184).

X

Have the cooling system checked.

X

If the coolant temperature is below 248‡ (120†), you can
continue driving to the nearest authorized Mercedes-Benz
Center.

X

Avoid high engine loads (e.g. driving uphill) and stop-and-go
driving.

19

Depending on vehicle production date, U.S. vehicles may be equipped with the Canada engine malfunction

indicator lamp ;.

What to do if …

263

Practical hints

230_AKB; 6; 22, en-US
d2ureepe,

Version: 2.11.8.1

2009-07-28T18:49:58+02:00 - Seite 263

Z

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