Mercedes-Benz ML320. Service manual - part 104

 

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Mercedes-Benz ML320. Service manual - part 104

 

 

243

Practical hints

What to do if …

Problem

Possible cause

Suggested solution

7

The indicator lamp comes on.

A BabySmart

TM1

 child seat is installed on the 

front passenger seat. The front passenger 
airbag is therefore switched off.

The system is malfunctioning when there is 
no BabySmart

TM

 child seat installed on the 

front passenger seat.

Have the system checked as soon as 
possible by an authorized 
Mercedes-Benz Light Truck Center.

7

The indicator lamp does not light 
up with a BabySmart

TM

 child 

seat properly installed on the 
front passenger seat.

The system is malfunctioning.

Make sure there is nothing between 
seat cushion and child seat and check 
installation of the child seat 
(

page 67).

If the light remains out, have the sys-
tem checked as soon as possible by 
an authorized Mercedes-Benz Light 
Truck Center.

Do not use the BabySmart

TM

 restraint 

to transport children on the front pas-
senger seat until the system has been 
repaired.

1

Baby Smart

TM 

is trademark of Siemens Automotive Corp.

244

Practical hints

What to do if …

Problem

Possible cause

Suggested solution

É

The red brake warning lamp 
comes on while driving.

There is insufficient brake fluid in the reser-
voir.

Risk of accident! Carefully stop the 
vehicle and notify an authorized 
Mercedes-Benz Light Truck Center. 
Do not add brake fluid! This will not 
solve the problem.

É

The red brake warning lamp 
comes on while driving and you 
hear a warning sound.

You are driving with the parking brake set.

Release the parking brake 
(

page 47).

Warning!

G

Driving with the brake warning lamp illumi-
nated can result in an accident. Have your 
brake system checked immediately if the 
brake warning lamp stays on. Don’t add 
brake fluid before checking the brake sys-
tem. Overfilling the brake fluid reservoir can 
result in spilling brake fluid on hot engine 
parts and the brake fluid catching fire. You 
can be seriously burned.

!

If you find that the brake fluid in the 
brake fluid reservoir has fallen to the 
minimum mark or below, have the 
brake system checked for brake pad 
thickness and leaks. 

245

Practical hints

What to do if …

Problem

Possible cause

Suggested solution

É
-

The red brake warning lamp 
comes on in addition to the yel-
low ABS malfunction lamp and 
you hear a warning sound.

There is a malfunction in the Electronic Brake 
Proportioning (EBP) system.

The enhanced braking effect is not available. 

Have the system checked immediate-
ly at an authorized Mercedes-Benz 
Light Truck Center.

Failure to follow these instructions in-
creases the risk of accidents.

¿

The yellow BAS/ESP malfunc-
tion indicator lamp comes on 
while driving.

The self-diagnosis has not been completed.

The BAS/ESP malfunction indicator lamp 
will go out after driving a short distance at 
more than approx.12 mph (20 km/h).

246

Practical hints

What to do if …

Problem

Possible cause

Suggested solution

¿

The yellow BAS/ESP malfunc-
tion indicator lamp comes on 
while driving.

The ESP is no longer synchronized following 
a voltage supply interruption (e.g. battery dis-
connected or discharged).

Synchronize the ESP:

With vehicle stationary and the engine 
running, turn the steering wheel 
completely to the left and then to the 
right.

If the BAS/ESP malfunction indicator 
lamp does not go out:

Continue driving with added caution.

Visit an authorized Mercedes-Benz 
Light Truck Center as soon as possi-
ble.

Failure to follow these instructions 
increases the risk of an accident.

!

When synchronizing the ESP, make 
sure you can turn the steering wheel in 
both directions as far as it will go with-
out the wheels hitting any objects, e.g. 
a road curb.

 

 

 

 

 

 

 

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