In this section, we will explain the indicators and controls. You will also find out about the various functions of your appliance.

Buttons and display
The buttons are touch keys with sensors underneath. Simply touch a symbol to select the function. The display shows symbols for active functions and the time-setting options.
Main oven 
Controls for the main oven
Function selector 
Use the function selector to set the heating function or other functions for the main oven. You can turn the function selector clockwise or anti-clockwise from the "Off" position.
Temperature selector
Use the temperature selector to set the temperature for the heating function or select the setting for other functions for the main oven. You can only turn the temperature selector clockwise from the "Off" position, until it offers resistance. Do not turn the selector beyond this point.
Heating-up indicator 
The heating-up indicator for the main oven remains lit while the appliance is heating.
Top oven 
Controls for the top oven
Function selector 
Use the function selector to set the heating function or other functions for the top oven. You can turn the function selector clockwise or anti-clockwise from the "Off" position.
Temperature selector 
Use the temperature selector to set the temperature for the heating function or select the setting for other functions for the top oven. You can only turn the temperature selector clockwise from the "Off" position, until it offers resistance. Do not turn the selector beyond this point.
Heating-up indicator 
The heating-up indicator for the top oven remains lit while the appliance is heating.
Note: On some appliances, the control knobs can be pushed in. To push the control knob in and engage it or to release it again, turn it to the "Off" position.
You can use the buttons to set various additional functions on your appliance. You will be able to see the values for these on the display.

Display
The value that can be set at the present time or that is elapsing will be shown in large digits on the display.
To use the individual time-setting options, tap the
button several times. The symbol that lights up corresponds to the value currently shown in large digits on the display.
Use the function selector to set the types of heating and other functions.
To make sure you always use the right type of heating to cook your food, we have explained the differences and applications below.
Note: Not all heating functions and other functions are available for both ovens. To find out which ones are available, see the symbols on the controls.

Other functions
Your new oven has yet more functions; see below for a brief description of these.


Use the temperature selector to set the temperature in the cooking compartment. You can also use it to select the settings for other functions.
For temperature settings above 250 °C, the appliance reduces the temperature to approx. 240 °C after approx. 10 minutes. If your appliance has the top/ bottom heating or bottom heating types, this reduction does not take place.

Temperature indicator
The heating-up indicator remains lit while the appliance is heating.
When you are preheating the appliance, the optimal time to place your food in the cooking compartment is when the heating-up indicator first goes out.
Note: Due to thermal inertia, the actual temperature inside the cooking compartment may differ slightly from the temperature that is displayed.
Various functions in the cooking compartment make your appliance easier to use. For example, the cooking compartment is well lit and a cooling fan prevents the appliance from overheating.
Opening the appliance door
If you open the appliance door when the appliance is in operation, the appliance will continue to operate as before.
Interior lighting
With most heating functions and other functions, the interior lighting in the cooking compartment will remain lit while the oven is in operation. When the function selector is turned to bring operation to an end, the lighting will go out.
By turning the function selector to the interior lighting setting, you can switch on the lighting without heating the oven. This makes it easier to clean your appliance, for example.
Cooling fan
The cooling fan switches on and off as required. The hot air escapes above the door.
Caution!
Do not cover the ventilation slots. Otherwise, the appliance may overheat.
So that the cooking compartment cools down more quickly after operation, the cooling fan continues to run for a certain period afterwards.
Before you can use your new appliance, you must make some settings. You must also clean the cooking compartment and accessories.
Initial use
The time will appear on the display once the appliance is connected to the power supply. Set the current time.
Setting the time
Make sure that the function selector is set to the "Off" position.
The time starts at "12:00".
or
button to set the time.
button to confirm.The current time will be shown on the display.
Before using the appliance to prepare food for the first time, you must clean the cooking compartment and accessories.
Cleaning the cooking compartment
To eliminate the new-appliance smell, heat up the cooking compartment when it is empty and with the oven door closed.
Ensure that there is no leftover packaging, such as polystyrene pellets, in the cooking compartment and remove the adhesive tape that is in or on the appliance. Before heating the appliance, wipe the smooth surfaces in the cooking compartment with a soft, damp cloth. Keep the kitchen ventilated while the appliance is heating.
Apply the settings indicated below. You can find out how to set the type of heating and the temperature in the next section.
"Operating the appliance" on page 13

Switch off the appliance after the time indicated. Once the cooking compartment has cooled down, clean the smooth surfaces with soapy water and a dish cloth.
Cleaning the accessories
Clean the accessories thoroughly using soapy water and a dish cloth or soft brush.
You have already learnt about the controls and how they work. Now we will explain how to apply settings on your appliance.
Use the function selector to switch the appliance on or off. Turning the function selector to any position other than the "Off" position switches on the appliance. To switch off the appliance, always turn the function selector to the "Off" position.
The function selector and temperature selector make it very easy to apply the settings you require to your appliance. To find out which heating function is best for which type of food, please refer to the beginning of the instruction manual.
"Getting to know your appliance" on page 8
Example in the picture: Top/bottom heating
at 190 °C.

The appliance starts heating after a few seconds.
Once your food is cooked, turn the function selector to the "Off" position to switch the appliance off.
Note: You can also set a cooking time and end time on the appliance.
"Time-setting options" on page 14
Changing
The heating function and temperature can be changed at any time using the relevant selector.
Rapid heating
With Rapid heating, you can shorten the heat-up time.
Then, for best results, use:
3D hot airOnly use Rapid heating when a temperature of over 100 ° C has been selected.
To achieve an even cooking result, do not place your food into the cooking compartment until Rapid heating is complete.
.Once Rapid heating is complete, an audible signal will sound. Place your food in the cooking compartment.
Your appliance has different time-setting options

You must set a heating function before you can call up the cooking time using the
button. Once you have set a cooking time, the end time can be called up.
An audible signal sounds once the cooking time or timer duration has elapsed. You can cancel the audible signal early by touching the
button.
You can set the cooking time for your food on the appliance. This prevents the food from accidentally being cooked for too long, and means that you do not have to stop what you are doing to switch off the oven.
The maximum time that can be set is 23 hours 59 minutes. The cooking time can be set in one-minute increments up to one hour, and then in five-minute increments.
The cooking time starts at a different default value, depending on which button you touch first: minutes if you touch the
button and 30 minutes if you touch the
button.
Example in the picture: Cooking time of 45 minutes.
.
button twice. The cooking time
is highlighted in the display.
3. Use the
or
button to set the cooking time.

The appliance starts to heat after a few seconds. The cooking time counts down in the display
The cooking time has elapsed
An audible signal will sound. The appliance will stop heating. The cooking time will be zero on the display.
Once the signal stops, you can touch the
button to set a new cooking time.
Once your food is cooked, turn the function selector to the "Off" position to switch the appliance off.
Changing and cancelling
You can use the
or
button to change the cooking time at any time.After a few seconds, the change will be applied.
To cancel, use the
button to reset the cooking time all the way to zero. The appliance will continue heating without a cooking time.
You can delay the time at which cooking is due to finish. You can, for example, put your food in the cooking compartment in the morning and set the cooking time so that it is ready at lunch time.
Notes
■ Make sure that food is not left in the cooking compartment for too long as it may spoil.
■ Do not adjust the end time once the appliance is already in operation. Otherwise the cooking result may no longer be satisfactory.
The end of the cooking time can be delayed by up to hours and 59 minutes.
Example in the picture: The time is 10.30 a.m., a cooking time of 45 minutes has been set and you want the food to be ready at 12.30 p.m.
.
button twice and use the
or
button to set the cooking time.
button again. The end time
is highlighted in the display.
4. Use the
or
button to delay the end time.

The appliance applies the settings after a few seconds. The end time is shown in the display. Once the appliance starts, the time begins counting down.
The cooking time has elapsed
An audible signal will sound. The appliance will stop heating. The cooking time will be zero on the display.
Once the signal stops, you can touch the
button to set a new cooking time.
Once your food is cooked, turn the function selector to the "Off" position to switch the appliance off.
Changing and cancelling
You can use the
or
button to change the end time. After a few seconds, the change will be applied. The end time cannot be changed once the cooking time has already started to count down. Otherwise the cooking result would no longer be satisfactory.
To cancel, use the
button to set the end time all the way back to the current time plus the cooking time. The appliance will start to heat and the cooking time will start to count down.
Setting the timer
You can use the timer whether or not the appliance itself is in use. However, it is not possible to set a cooking time or end time.
The maximum time that can be set is 23 hours and 59 minutes. Up to 10 minutes, the timer duration can be set in 30-second increments. Above 10 minutes, the time increments become longer the higher the value.
The timer duration will start at a different default value, depending on which button you touch first:5 minutes if you touch the
button and 10 minutes if you touch the
button.
button until the timer symbol
is highlighted.
or
button to set the timer duration. After a few seconds, the timer duration will start to count down.Tip: If the set timer duration is the duration for which you wish to cook your food, use the cooking time. The appliance will then switch off automatically when it has finished cooking.
The timer duration has elapsed
An audible signal will sound. The timer duration will be zero on the display.
Touch any button to switch off the timer.
Changing and cancelling
You can use the
or
button to change the timer duration at any time. After a few seconds, the change will be applied.
To cancel, use the
button to reset the timer duration all the way to zero. The timer is now switched off.
Setting the time
Once the appliance has been connected to the mains or following a power failure, the clock will flash on the display. Set the time.
The function selector must be set to the "Off" position.
or
button to set the time.The time will stop flashing.
button. The appliance will apply the time you have set.Changing the time
You can change the time again when you need to, e.g. from summer to winter time.
To do this, when the appliance is switched off, touch the
button until the time flashes, and use the
or
button to change the time.
Childproof l ockThe bottom oven has a childproof lock to prevent children from switching it on or changing settings by accident.
Notes
■ If a hob is connected, it will not be affected by the childproof lock on the oven.
■ After a power cut, the childproof lock will no longer be active.
To activate the childproof lock for the main oven, the function selector must be set to the "Off" position.
Press and hold the
button for approx. four seconds.
appears in the display. The childproof lock is now active for the main oven.
Note: If a timer duration
has been set, this continues to count down. While the childproof lock is active, the timer duration cannot be changed.
To deactivate the childproof lock, press and hold the
button again for approx. four seconds until
goes out in the display
With good care and cleaning, your appliance will retain its appearance and remain fully functioning for a long time to come. We will explain here how you should correctly care for and clean your appliance.
To ensure that the different surfaces are not damaged by using the wrong cleaning agent, observe the information in the table. Depending on the appliance model, not all of the areas listed may be on/in your appliance.
Caution! Risk of surface damage
Do not use:
■ Harsh or abrasive cleaning agents,
■ Cleaning agents with a high alcohol content,
■ Hard scouring pads or cleaning sponges,
■ High-pressure cleaners or steam cleaners,
■ Special cleaners for cleaning the appliance while it is hot.
Wash new sponge cloths thoroughly before use.
Tip: Highly recommended cleaning and care products can be purchased through the after-sales service. Observe the respective manufacturer's instructions.
Warning – Risk of burns! The appliance becomes very hot. Never touch the interior surfaces of the cooking compartment or the heating elements. Always allow the appliance to cool down. Keep children at a safe distance.
Appliance exterior
Stainless steel front
Hot soapy water:
Plastic
Hot soapy water:
Painted surfaces
Hot soapy water:
Control panel
Hot soapy water:
Door panels
Hot soapy water:
Door handle
Hot soapy water:
Appliance interior
Enamel surfaces and self-cleaning surfaces
Observe the instructions for the surfaces of the cooking compartment that follow the table.
Glass cover for the interior lighting
Hot soapy water:
Door seal. Do not remove.
Hot soapy water:
Door cover
made from stainless steel:
made from plastic:
Rails
Hot soapy water:
Pull-out system
Hot soapy water:
Accessories
Hot soapy water:



Notes
■ Slight differences in colour on the front of the appliance are caused by the use of different materials, such as glass, plastic and metal.
■ Shadows on the door panels, which look like streaks, are caused by reflections made by the interior lighting.
■ Enamel is baked on at very high temperatures.This can cause some slight colour variation. This is normal and does not affect operation. The edges of thin trays cannot be completely enamelled. As a result, these edges can be rough. This does not impair the anti-corrosion protection.
The back wall in the cooking compartment is selfcleaning.You can tell this from the rough surface.
The base, ceiling and side panel are enamelled and have smooth surfaces.
Cleaning enamel surfaces
Clean the smooth enamel surfaces with a dish cloth and hot soapy water or a vinegar solution. Then dry them with a soft cloth.
Soften baked-on food remnants with a damp cloth and soapy water. Use stainless steel wire wool or oven cleaner to remove stubborn dirt.
Caution!
Never use oven cleaner in the cooking compartment when it is still warm. This may damage the enamel. Remove all food remnants from the cooking compartment and the appliance door before you next heat up the appliance.
Leave the cooking compartment open to dry after cleaning it.
Note: Food residues can cause white deposits to form. These are harmless and do not affect how the appliance works. You can remove these residues using lemon juice if required.
Cleaning self-cleaning surfaces
The self-cleaning surfaces are coated with a porous, matte ceramic layer. This coating absorbs and dispels splashes from baking and roasting while the appliance is in operation.
If the self-cleaning surfaces no longer clean themselves sufficiently and dark stains appear, they can be cleaned using targeted heating.
Making settings
Remove the rails, pull-out shelves, accessories and ovenware from the cooking compartment beforehand. Thoroughly clean the smooth enamel surfaces in the cooking compartment, the inside of the appliance door and the glass cover on the interior lighting.
The ceramic coating is regenerated.
When the cooking compartment has cooled down, remove the brown or white residue with water and a soft sponge.
Note: During operation, reddish spots form on the surfaces. This is not rust, but residues from food. These spots are not harmful and do not restrict the cleaning ability of the self-cleaning surfaces.
Caution!
Do not use oven cleaner on the self-cleaning surfaces. This will damage the surfaces.If oven cleaner does get onto these surfaces, dab it off immediately using water and a sponge cloth. Do not rub the surface and do not use abrasive cleaning aids.
Always keep the appliance clean and remove dirt immediately so that stubborn deposits of dirt do not build up.
Warning – Risk of fire!
Loose food remnants, fat and meat juices may catch fire. Before using the appliance, remove the worst of the food remnants from the cooking compartment, heating elements and accessories.
Tips
If a fault occurs, there is often a simple explanation. Before calling the after-sales service, please refer to the fault table and attempt to correct the fault yourself.
Rectifying faults yourself You can often easily rectify technical faults with the appliance yourself.
If a dish does not turn out exactly as you wanted, you can find useful cooking tips and instructions at the end of this instruction manual.
"Tested for you in our cooking studio" on page 25
The appliance is not working.
The time is flashing on the display.
The settings on the appliance cannot be configured. A key symbol has lit up on the display or
Warning – Risk of injury! Incorrect repairs are dangerous. Do not attempt to repair the appliance yourself. Repairs must only be carried out by one of our trained after-sales engineers. If the appliance is defective, call the after-sales service.
Warning – Risk of electric shock! Incorrect repairs are dangerous. Repairs may only be carried out and damaged power cables replaced by one of our trained after-sales technicians. If the appliance is defective, unplug the appliance from the mains or switch off the circuit breaker in the fuse box. Contact the after-sales service.
Error messages on the display
If an error message with "
" appears on the display, e.g.
, touch the
button. This will reset the error message. Reset the time, if necessary.
If the fault was a one-off, you can continue to use your appliance as normal. If the error message appears again, call our after-sales service and quote the exact error message and the E no. of your appliance.
" Customer service" on page 24
If the cooking compartment light bulb fails, it must be replaced. Heat-resistant, 25 watt, 230 V halogen bulbs are available from the after-sales service or specialist retailers.
When handling the halogen bulb, use a dry cloth. This will increase the service life of the bulb. Only use these bulbs.
Warning – Risk of electric shock! When replacing the cooking compartment bulb, the bulb socket contacts are live. Before replacing the bulb, unplug the appliance from the mains or switch off the circuit breaker in the fuse box.
Warning – Risk of burns! The appliance becomes very hot. Never touch the interior surfaces of the cooking compartment or the heating elements. Always allow the appliance to cool down. Keep children at a safe distance.
).
). Insert the new bulb, making sure that the pins are in the correct position. Push the bulb in firmly.
2

3


Reference file: Bosch MBS533BS0B Series 4 Built-in double oven
Series: Series 4