Page 191 of 284
185
Driving and operation
Picture no: 18391s.tif
Checking the tensioning of the coupling ball barzThe rotary lever rests on the coupling
ball bar.
z Green marking on the rotary lever is not
visible.
z Locking pin at the top of the coupling
ball bar is set inwards.
z The key is in the lock.
Picture no: 18392s.tif
Otherwise, the coupling ball bar must be
tensioned before it is inserted into the
coupling housing:
z Place the key in the lock and unlock the
coupling ball bar.
z Push the rotary lever onto the coupling
ball bar and rotate right while pressed
down until it engages. The key remains in
the lock.
Picture no: 18393s.tif
Inserting the coupling ball bar
Insert the tensioned coupling ball bar in the
housing and push firmly upwards until it
audibly engages.
The rotary lever moves quickly back into its
starting position on its own.
9
Warning
Do not touch rotary handle during
insertion.
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Page 192 of 284
186 Driving and operation
Picture no: 18394s.tif
Green marking on the rotary lever is visible.
Lock coupling ball bar and remove key. Check that the coupling ball bar is correctly
installedz
Green marking on the rotary lever is
visible.
z There must be no gap between the
rotary handle and th e coupling ball bar.
z The coupling ball bar must be firmly
engaged in the opening.
z The coupling ball bar must be locked
and the key removed.
Picture no: 18397s.tif
Eye for break-away stopping cable
In the case of trailers/caravans with brakes,
attach breakaway stopping cable to eye.
9
Warning
Towing a caravan/trailer is only per-
mitted with a properly fitted coupling
ball bar. If the coupling ball bar cannot
be correctly fitted, please contact a
workshop for assistance.
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Page 196 of 284

190 Self-help, vehicle careSelf-help,
vehicle care
Diesel fuel system, bleeding If the tank is allowed to run dry, the diesel
fuel system must be bled. Turn over the
ignition three times for 15 seconds at a
time. Then start the engine for a maximum
of 40 seconds
1). Repeat this process after
no less than 5 seconds. If the engine fails to
start, seek the assistance of a workshop.
Picture no: 18190s.tif
Bonnet Pull the release lever located on the left
side below the instru ment panel and push
it back to its original position.
Diesel fuel system, bleeding ............... 190
Bonnet .................................................. 190
Starting the engine with jump leads
3. 191
Towing .................................................. 193
Warning triangle ¨ 3......................... 196
First-aid kit (cushion) + 3................... 196
Spare wheel 3...................................... 196
Jack £ 3 and vehicle tools 3........... 198
Changing wheels ................................. 200
Tyre repair kit 3................................... 204
Electrical system .................................. 208
Fuses and the most important circuits they protect ....................................... 209
Bulb replacement ................................ 212
Halogen headlamp system ................ 212
Adaptive Forward Lighting system 3. 216
Front indicator lamps .......................... 220
Fog lamps 3......................................... 220
Side turn signal lamp .......................... 220
Tail lamps ............................................. 221
Number plate lamp ............................. 225
Courtesy lamps .................................... 226
Vehicle care.......................................... 228
1)For technical reasons only 30 seconds are
possible on engines A 17 DTR/Z 17 DTR
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Page 197 of 284
191
Self-help, vehicle care
Picture no: 18191s.tif
Lift the safety catch upwards and open the
bonnet.
Any dirt or snow on the bonnet can slide
down toward the windscreen when the
bonnet is opened and block the air intake
3135.
Picture no: 18413s.tif
Secure the bonnet support. Before closing
the bonnet, press the support into the
holder.
Lower the bonnet and allow it to drop into
the catch. Check that the bonnet is
engaged.
Starting the engine with jump
leads
3
Do not use a rapid charger or push or two
the vehicle to get it started.
A vehicle with a discha rged battery can be
started using jump leads and the battery of
another vehicle.
9
Warning
Starting the engine with jump leads must
be carried out with the utmost caution.
Any deviation from the following instruc-
tion may lead to injury or damage due
to the explosion of the batteries and to
damage of the electrics in both vehicles.
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Page 202 of 284
196 Self-help, vehicle care
Picture no: 18314s.tif
Warning triangle
¨ 3
Store warning triangle in rear luggage
compartment wall: first fit warning triangle
into recess on left and the insert in guide on
right.
To remove the warning triangle, lift to the
right and pull out to the right.
Picture no: 18450s.tif
First-aid kit (cushion)
+ 3
Place the first-aid ki t (cushion) in the
compartment in the left wall of the luggage
compartment.
To open the compartment, disengage the
cover and open it.
Picture no: 18366s.tif
Spare wheel
3
Some vehicles are equipped with a tyre
repair kit instead of a spare wheel. 3204.
To remove, lift spare wheel, move to a
vertical position and remove from above.
Stowing in the luggage compartment
The spare wheel 3 is located in the
luggage compartment under the floor
cover. It is secured using a nut.
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Page 206 of 284

200 Self-help, vehicle careChanging wheels There may be a tyre repair kit instead of a
spare wheel 3204.
Make the following preparations and
observe the following information:
z Park the vehicle on a level, firm and non-
skid surface. The front wheels must be in
the straight-ahead position.
z Switch on hazard warning lights, apply
hand brake, automa tic transmission 3 -
selector lever in P , manual transmission
or manual automatic transmission 3 -
engage 1st or reverse gear.
z Erect warning triangle 3 as specified.
Warning triangle 3196.
z Remove spare wheel from luggage
compartment 3196. z
Never change more than one wheel at
once.
z Use the jack 3 only to change wheels.
z If the ground on which the vehicle is
standing is soft, a solid board (max. 1 cm
thick) should be placed under the jack 3.
z Block the wheel diagonally opposite the
wheel to be changed by placing wedge
blocks or equivalent in front and behind
the wheel. z
No people or animals may be in the
vehicle when it is jacked up.
z Never crawl under a jacked-up vehicle.
z Do not start the vehicle when it is raised
on the jack.
z Before screwing in the wheel bolts, clean
them and lightly coat the taper of each
wheel bolt with comm ercially available
grease.
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Page 209 of 284

203
Self-help, vehicle care
5. Unscrew the wheel bolts. If the wheel bolts have retaining
washers 3, they must not be removed.
6. Change wheel. Notes on spare wheel 3197. Notes on temporary spare wheel
3 197.
Picture no: 17249t.tif
7. Screw in the wheel bolts. Push the wheel
bolt wrench 3 on as far as possible and
tighten the wheel bolts slightly.
8. Lower vehicle.
9. Push the wheel bolt wrench 3 on as far
as possible and tighten crosswise.
Tightening torque is 110 Nm. 10. Before refitting the wheel trim, clean the
wheel around the retaining clips. Valve
symbol 3 on back of wheel trim must
point towards valve on wheel.
Align and refit wheel trim or wheel bolt
caps 3.
Alloy wheels 3: Align and refit wheel
bolt caps 3.
11. Stow removed wheel, tool kit and warning triangle 3 in the luggage
compartment 3196 to 3198.
12. Check the tyre pressure of the newly mounted wheel.
13. Have the wheel bolt tightening torque (110 Nm) checked.
14. Replace the faulty tyre on the wheel that was removed.
15. Initialise deflation detection system 3
3 164.
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Page 210 of 284

204 Self-help, vehicle careTyre repair kit
3
Minor damage to the tyre tread or side wall
can be repaired using the tyre repair kit
(does not apply to run-flat tyres).
Do not remove the foreign body from the
tyre.
T y r e d a m a g e e x c e e d i n g 4 m m o r t ha t i s o n
the rim cannot be repaired with the tyre
repair kit.
Important 3207.
In the event of a flat tyre:
z Switch on hazard warning lights, apply
handbrake, engage 1st or reverse gear,
in the case of automatic transmission 3
move selector lever to position P.
z Erect warning triangle 3 as specified.
Warning triangle 3196.
Picture no: 18317s.tif
The tyre repair kit is located in the
compartment to the right in the luggage
compartment.
To open the compartment, disengage the
cover and open it.
Picture no: 18318s.tif
1. Remove the sealant bottle and holder
with the air tube from the compartment.
9
Warning
Do not drive faster than 80 km/h.
Do not use the temporary spare wheel
for a lengthy period.
Steering and handling may be affected.
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