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Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
catalyst as an emission control device.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly serviced to assure
proper catalyst operation and prevent possible catalyst
damage.
If the CHECK ENGINE light is flashing, immediate
service is required.CAUTION!
Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and the
vehicle.
WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn.
206 MAINTAINING YOUR VEHICLE
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WARNING!
Do not overfill the washer reservoir. Do not attempt
to fill to the top of the filler neck. Fluid may leak out
onto the floor or driveway causing a potential slip
and fall hazard. When the indicator light first illu-
minates, the maximum fill amount is 1 gallon or 4
liters.
WARNING!
Commercially available windshield washer solvents
are flammable. They could ignite and burn you. Care
must be exercised when filling or working around
the washer solution.
Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.If you notice a change in the sound of the exhaust system,
or if exhaust fumes can be detected inside the vehicle, or
when the underside or rear of the vehicle is damaged,
have a competent technician inspect the complete ex-
haust system and adjacent body areas for broken, dam-
aged, deteriorated, or mispositioned parts. Open seams
or loose connections could permit exhaust fumes to seep
into the passenger compartment. In addition, inspect the
exhaust system each time the vehicle is raised for lubri-
cation or oil change. Replace as required.
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide which is colorless and odorless. Breathing
it can make you unconscious and can eventually
poison you. Follow the above precautions to keep
your exhaust system as safe as possible.
MAINTAINING YOUR VEHICLE 213
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Brake Master Cylinder
The fluid level in the master cylinder should be checked
when performing under hood services, or immediately if
the brake system warning light is on.
Be sure to clean the top of the master cylinder area before
removing the cap. If necessary, add fluid to bring the
fluid level up to the requirements described on the brake
fluid reservoir. Fluid level can be expected to fall as the
brake pads wear. Brake fluid level should be checked
when pads are replaced. However, low fluid level may be
caused by a leak and a checkup may be needed.Use brake fluid approved to MB 331.0, or a DOT 4 brake
fluid with: minimum dry boiling point (ERBP) 500°F,
minimum wet boiling point (WERBP) 356°F, maximum
viscosity 1500 mm 2/s, conforming to FMVSS 116 and
ISO 4925.
WARNING!
Use of a brake fluid that may have a lower initial
boiling point or unidentified as to specification, may
result in sudden brake failure during hard pro-
longed braking. You could have an accident.
WARNING!
Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign mat-
ter. Use of contaminated fluid may result in reduced
brake performance or a sudden brake failure. You
could have an accident.
MAINTAINING YOUR VEHICLE 219
7
Page 225 of 288

ammonia based cleaners to clean your leather upholstery.
Application of a leather conditioner is not required to
maintain the original condition.
CAUTION!
The use of vinyl, leather or plastic protectants may
cause excessive gloss and/or discoloration of interior
trim parts.
WARNING!
Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in
closed areas they may cause respiratory harm.
Cleaning Headlights
Your vehicle has plastic headlights that are lighter and
less susceptible to stone breakage than glass headlights.
Plastic is not as scratch resistant as glass and therefore
different lens cleaning procedures must be followed.To minimize the possibility of scratching the lenses and
reducing light output, avoid wiping with a dry cloth. To
remove road dirt, wash with a mild soap solution fol-
lowed by rinsing.
Do not use abrasive cleaning components, solvents, steel
wool or other aggressive material to clean the lenses.
Glass Surfaces
All glass surfaces should be cleaned on a regular basis
with any commercial household-type glass cleaner.
Never use an abrasive-type cleaner. Use caution when
cleaning inside rear windows equipped with electric
defrosters. Do not use scrapers or other sharp instru-
ments which may scratch the elements.
Instrument Panel Cover
The instrument panel cover has a low glare surface which
minimizes reflections in the windshield. Do not use
protectants or other products which may cause undesir-
able reflections. Use soap and warm water to restore the
low glare surface.
MAINTAINING YOUR VEHICLE 225
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Washing
CAUTION!
•Remove bird droppings immediately. The organic
acid can damage the material and cause the top to
leak.
•Never use a power washer to clean the top, as you
may damage the top material.
•If an automatic car wash is used, never use hot-
wax.
Hand washing is highly recommended. Automatic car
washing equipment can damage the top material. If you
must use an automatic car wash, soft cloth systems are
preferred.
General Cleaning
CAUTION!
Do not use any of the following to clean the top:
•Gasoline
•Paint Thinner
•Tar and Stain Removers
•Glass Cleaner
•Similiar Organic Solvents
•Abrasive Type Cleaners or Bleaches
The following methods are sufficient if the top is only
lightly soiled:
Dry Cleaning
Brush the dry top with a soft-bristled brush from front to
rear of the vehicle.
MAINTAINING YOUR VEHICLE 227
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Page 231 of 288
Cavity Fuse Circuits
9 10 Amp
RedRoof Light, Horn, Anti-Theft
Alarm, Cargo Lamp and Tire
Pressure Control
10 5 Amp
BeigeSpeed Control
11 15 Amp
BlueIgnition Coil 6 Cyl.
12 10 Amp
RedHeated Washer Nozzles
13 Spare
14 10 Amp
RedDiagnostic Socket
15 5 Amp
BeigeResidual Engine Heat Utilization
16 30 Amp
GreenWiper Motor
17 40 Amp
OrangeElectronic Stability Program
18 40 Amp
OrangeElectronic Stability ProgramCavity Fuse Circuits
19 40 Amp
OrangePower Window, Front
20 10 Amp
RedSpoiler Motor
21 30 Amp
GreenSeat Adjustment Right Side
22 30 Amp
GreenSeat Adjustment Left Side
23 15 Amp
BlueSound Booster (Amplifier)
24 30 Amp
GreenSeat Heater
25 20 Amp
YellowPneumatic Control Unit, Rear
Window Defroster
26 20 Amp
YellowCentral Locking
30 Spare (Coupe)
30 15 Amp
BlueRadio (Roadster)
31 15 Amp
BlueCigar Lighter, Glove Compart-
ment Light
MAINTAINING YOUR VEHICLE 231
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Page 232 of 288
Cavity Fuse Circuits
32 15 Amp
BlueWiper, Washer Pump, Headlight
Flasher
33 5 Amp
BeigeResidual Engine Heat Utilization
34 Spare (Coupe)
34 30 Amp
GreenClimate Control (Roadster)
35 15 Amp
BlueRadio Frequency Remote Control,
Hazard Warning Flasher, Instru-
ment Cluster, Residual Engine
Heat Utilization
36 30 Amp
GreenClimate Control (Coupe)
36 5 Amp
BeigeExterior Mirror Adjustment
(Roadster)
37 5 Amp
BeigeCirculating Air, Instrument Clus-
ter, Radio Frequency Remote
Control, Residual Engine Heat
UtilizationRelay Control Module Fuses
The relay control module fuses are located in the Control
Module Box next to the battery in the engine compart-
ment. Slide the control module box cover retaining clips
forward and lift the cover from the control module box to
gain access to the relay control module fuses.
232 MAINTAINING YOUR VEHICLE
Page 234 of 288
The fuse access door is located on the end of the
instrument panel on the driver’s side behind the trim
panel cover. Use a coin or flat blade screwdriver to open
and close this access door.
Interior Fuses
Cavity Fuse Circuits
1 Not Assigned
2 15 Amp
BlueBrake Lamp/Speed Control
3 7.5 Amp
BrownRight High Beam, High Beam
Indicator Light
Cavity Fuse Circuits
4 15 Amp
BlueReverse/Turn signal Light
5 7.5 Amp
BrownLeft High Beam
6 15 Amp
BlueRight Low Beam
7 7.5 Amp
BrownRight Parking/Tail Light Side
Marker
8 15 Amp
BlueLeft Low Beam
9 15 Amp
BlueFog Light
10 7.5 Amp
BrownLeft Parking/Tail Light Side
Marker
11 7.5 Amp
BrownLicense Plate/Instrument Cluster
Lighting/Symbol Lighting
12 7.5 Amp
BrownRear Fog Light (European Mar-
kets Only)
13 Not Used - Spare Fuse
14 Not Used - Spare Fuse
234 MAINTAINING YOUR VEHICLE